Security Engineer at Furiosa AI | Seoul HQ

About the RoleWe are seeking a dedicated Security Engineer to report directly to the CTO. This role is instrumental in establishing the company's security framework and implementing a Zero Trust architecture across our organization.You will be responsible for developing security policies, configuring systems, managing accounts, controlling access, ensuring c…

About the Team You’ll Join The Security Division at Toss Bank is composed of several specialized teams including Security Policy, Privacy Protection, System Security, Network Security, Security Red Team, Security Blue Team, IT Service, and Security Audit. As a Security Analyst at Toss Bank, you will be an integral part of the Security Blue Team, focusing on event analysis and incident response, as well as scenario-based threat modeling. The Security Division collaborates extensively with various teams to ensure the delivery of safe and reliable services. Notably, the Security Blue Team works closely with product organizations, Legal & Compliance, Platform Engineering, and Internal Audit to enhance service safety and compliance. Our commitment lies in securing electronic financial transactions for our customers and ensuring that security is seamlessly integrated into daily operations, providing a safe working environment. Your Responsibilities Analyze and respond to security threats and incidents affecting customer services and employee work environments. Identify security threats and design operational scenarios through various logs collected in the SIEM system. Respond to events detected by security monitoring and review blocking policies for security solutions like DDoS, IPS, IDS, WAF, and AV to prevent recurrence. Enhance operational efficiency through the automation of repetitive security tasks, allowing security personnel to focus on more strategic responsibilities. Ideal Candidate Profile Profound analytical skills for security events and logs, with a solid understanding of various attack techniques (TTPs) and Indicators of Compromise (IOC). Experience in deriving threats and responding through intrusion detection analysis tools and security solutions. Familiarity with creating advanced detection rules based on SIEM. Experience in developing automation scripts for security tasks using Python, PowerShell, or similar tools to improve operational efficiency. Please Include in Your Resume If you have actual incident response experience, please detail the type of incidents, analysis processes, responses, and follow-up actions step by step. Experience in threat modeling through various security logs and direct response efforts is highly valued. If you have automated security tasks using Python or PowerShell, please specify the purpose, implementation, and improvements in operational efficiency. Avoid simply listing results; instead, describe your understanding and learning throughout the project. Application Process at Toss Bank Application submission > Job interview > Cultural fit interview > Reference check > Compensation discussion > Final acceptance and onboarding. Important Notes Employment may be revoked if any false information is found in the resume or if there are disciplinary actions in work history. Applicants with disqualifications as per Toss Bank’s employment regulations may have their applications canceled. Individuals with disabilities or those eligible for national veterans' benefits will be prioritized in accordance with relevant laws.

About the Team You'll Join The Security Division at Toss Securities comprises the Security Policy Team and the Security Engineering Team, with the Security Policy Team including roles such as Information Security Manager and Privacy Manager. This division enjoys comprehensive support across the organization to create secure Toss Securities services and collaborates closely with all departments. Team members actively exchange experiences and knowledge with peers in similar roles across affiliates to achieve shared goals. The team consists of members with diverse experience ranging from 1 to 20 years, most of whom have backgrounds in information security firms and corporate information security roles. This year, we are focusing on enhancing our information security management system through global security standard certifications and prioritizing risk management based on data flow and business processes. We will also conduct research activities to advance regulatory frameworks. Responsibilities You'll Have Lead the establishment and operation of information security policies, as well as the acquisition and maintenance of domestic and international security certifications (ISMS-P, ISO/IEC 27001, 27701, 27017, 27018, PCI-DSS, etc.). Formulate and amend security policies in response to changes in legislation and regulations, and develop operational processes. Oversee internal audits, inspections, and external institution assessments, driving improvement initiatives. Establish and lead the security risk assessment and management processes. Plan and implement security awareness programs (training, campaigns) to foster a security-centric culture within the organization. Mentor junior colleagues and contribute to the growth of team capabilities. Ideal Candidate Profile Over 5 years of experience in information security policy and management system operations within the finance and electronic finance sectors. Proven experience leading the acquisition and maintenance of domestic and international security certifications. Strong background in responding to external organizations and validated risk management skills. Experience in designing and executing organizational policies and processes. Ability to identify and lead new security challenges in rapidly changing IT/service environments. Journey to Joining Toss Securities Application submission > Role interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding. Please Note Any discrepancies found in the resume or supporting documents, or any disciplinary issues in the work history may lead to cancellation of employment. Candidates identified as prohibited or disqualified under Toss Securities internal regulations may also have their applications canceled. Individuals with disabilities and those eligible for national veteran benefits are given preferential treatment in accordance with relevant laws. A Message for Future Colleagues You can create an information security management system with comprehensive organizational support. At Toss Securities, all colleagues share an understanding of the importance of information security, and the Security Division builds the management system based on this shared awareness. To establish a high-level information security management system, we not only comply with mandatory requirements but also embrace various challenges to present new cultures and trends. This means you will gain diverse experiences not confined to routine tasks. We are looking for passionate colleagues who want to contribute to the security of Toss Securities while experiencing explosive growth in their careers.

Join the Daangn Team!At Daangn, we are committed to fostering an environment where individuals can grow alongside our company's success.We are here to assist you in reaching that moment where you can engage in meaningful discussions with amazing colleagues. About the Security TeamThe Security Team at Daangn is dedicated to ensuring the safe provision of our services. We defend against external attacks and prevent the leakage of valuable internal information. All our activities comply with various information security laws and regulations. We strive to understand Daangn's business model and provide clear criteria that are technically applied where appropriate. Through these efforts, we aim to create a trustworthy service for our users.Key ResponsibilitiesAnalyze and respond to security events in both customer service and internal office environments.Design, operate, and enhance detection systems and related activities for effective detection of security incidents and issues.Conduct investigations when security events occur to analyze breach paths and causes, and establish and implement measures to prevent recurrence.Continuously improve detection rules, automation, and operational processes based on insights gained during incident response.Who We Are Looking ForIndividuals with over 3 years of practical experience in responding to security incidents or events.Experience in analyzing security events and responding to incidents in complex service environments, including multi-cloud and SaaS.Proactive individuals who can lead incident response and operational improvements beyond the immediate scope of duties.Team players who can collaborate with various stakeholders to drive incident response and improvements.Preferred QualificationsContinuous interest in external security incidents and issues, with experience integrating CVEs and security trend reports into workflows.Experience utilizing OSINT, CTI, and Attack Surface information.Experience in improving analysis and response tasks through automation and AI for enhanced efficiency.Background in incident response within IT companies or large-scale service environments.Experience in building and operating SIEM or orchestration platforms.

About the Team You'll Join The Network Security Engineer at Toss Securities is part of the Network Engineering Team, collaborating closely with Network Engineers and IDC Managers. You will work alongside top talents from diverse sectors including finance, commerce, portals, and gaming, focusing on building and supporting secure networks for both external and internal clients. Our goal is to provide robust support for product development, enabling rapid deployment by enhancing our infrastructure to handle large-scale traffic and pushing for automation. Your Responsibilities Upon Joining As a Network Security Engineer, you will be responsible for security devices in the network area, including firewalls, DDoS protection, and VPNs to safeguard Toss Securities' clients and teams. You will perform regular preventive maintenance to ensure the stable operation of security equipment. Management and improvement of Toss Securities' security device monitoring solutions will be part of your role. You will build and operate network security devices, providing security-based technology within the data center. Ideal Candidate Profile A degree in Information Security, Computer Engineering, Information Communication, or a related field is required. A solid understanding of networks and security devices is essential. High proficiency in TCP/IP protocols and experience in packet analysis for troubleshooting are preferred. Experience with security system API integration or work automation is a plus. Prior experience in security training or practical security work is advantageous. Resume Recommendations Please describe a memorable technical issue you resolved (optimization, bug fixes, etc.). Detail projects you contributed to, focusing on your role, technology stack used, and improvements made. The Journey to Joining Toss Securities Application submission > Job interview > Cultural fit interview > Reference check > Salary negotiation > Final acceptance and onboarding. Important Notes False information in your resume or disciplinary issues in your work history may result in cancellation of your application. Applicants who fall under hiring restrictions per Toss Securities policies may also have their applications canceled. Individuals with disabilities or veterans are prioritized according to relevant laws. A Message for Future Colleagues The Network Security Engineer at Toss Securities creates and manages a secure and robust network structure both on-premises and in the cloud. This role goes beyond equipment management; it involves understanding service flows and traffic to continuously innovate better structures. The position requires proactive identification of potential threats and developing solutions. Our team takes initiative to investigate issues, identify root causes, and suggest efficient solutions swiftly, respecting each other's opinions while collaboratively ensuring the stability of financial services. We strive to continuously create improved methods rather than sticking to established practices.

#LI-DNIAbout the Team You Will JoinThe Toss Security Team is responsible for maintaining the security framework and various compliance measures. It comprises a security policy group and a security engineering group that identifies security threats and develops strategies to address them.Our team collaborates closely with various departments such as IT, personal data, infrastructure, and platforms to ensure the security of Toss's diverse services and team members’ work environments.Additionally, team members regularly engage in weekly meetings with peers from affiliated companies to share insights and collaborate on specialized areas.Our team includes professionals with 5 to 20 years of experience, most of whom have backgrounds in cybersecurity firms or corporate information security.We aspire to be the 'world's best security team' by developing robust security frameworks to protect our customers' valuable information against hacking and external threats while complying with various regulations.Responsibilities You Will HaveYou will build and operate information security solutions to protect Toss's customer services and the work environments of employees.You will establish access control measures to safeguard Toss Community's information systems (DB, Server, Network, etc.) and manage security solutions.You will implement and manage security systems (network separation, data leakage prevention, etc.) necessary for compliance with financial regulations.Your role will also involve improving security visibility and management systems to create a safe working environment for Toss teams.Ideal CandidateWe are looking for someone with experience in building and operating network security systems such as FW, NAC, and Proxy, along with infrastructure architecture design.Experience in designing access control models and control solutions for servers and databases using SAC and DAC is essential.Experience in building and operating cloud-based infrastructure and services (IaaS - AWS, Azure, OpenStack, etc. / SaaS - Google Workspace, M365, etc.) with security management is required.Experience in implementing and managing IAM and SSO systems (OKTA, KeyCloak, etc.) and designing permission management frameworks is highly desired.Familiarity with UEM systems for user clients like MS Intune, Workspace ONE, or Jamf is a plus.Knowledge of Zero Trust-based network access control configurations and an understanding of authentication protocols like SAML, OpenID, OAuth is a significant advantage.Experience with domestic and international security certifications and financial regulations like ISO27001, ISO27701, PCI-DSS, ISMS-P, and knowledge of compliance systems is preferred.Resume RecommendationsWe recommend detailing your problem-solving skills and technical experiences related to building and operating security solutions, including automation.

About the Team You'll Join The Security Division at Toss Bank comprises several teams including the Security Policy Team, Privacy Protection Team, System Security Team, Network Security Team, Security Red Team, Security Blue Team, IT Service Team, and Security Audit Team. The System Security Team Leader is responsible for safeguarding devices and systems within Toss Bank against various external threats while leading the System Security Team. The Security Division collaborates with various teams to create a safe and reliable service for Toss Bank customers. The System Security Team, in particular, focuses on ensuring secure services from both system/device security and operational perspectives, working closely with product organizations, legal and compliance, platform engineering, and internal audit teams. Responsibilities You'll Have Develop and execute operational plans for device and system information security solutions to protect Toss Bank's customers, leading the team's technical growth and implementation. Design and enhance integrated security operations for device security, system security solutions, AI, and supply chain security. Establish strategies to ensure visibility from a systems security perspective and create an environment that supports optimal operations. Who We're Looking For Individuals with over 10 years of diverse experience in operating security solutions are essential. Experience in directly leading a security team of three or more members to achieve team objectives is highly desirable. Knowledge of operational strategies for device and system security solutions aimed at ensuring safe electronic financial transactions is necessary. Deep understanding of the principles of security solutions, with the ability to set standards for operational policies and guide team discussions for optimal decision-making is required. Experience in automating repetitive tasks to enhance productivity and a proven track record of deep diving into problem-solving are sought after. Familiarity with various open-source tools and the ability to utilize AI in work processes are preferred. Experience in script development using Bash, Python, and API utilization for system integration is necessary. Resume Submission Guidelines We recommend submitting a resume in a free format along with a portfolio. Your application should highlight experiences and knowledge relevant to the role. Present specific contexts and outcomes rather than simply listing responsibilities, focusing on how you solved problems. Detail your leadership experiences, including team size, operational methods, personal contributions, and team achievements. Include any experience in establishing security strategies or improving systems that influenced the entire organization. It would be beneficial to attach examples that demonstrate your technical depth, such as architectures you have designed, problem-solving processes, or automation outcomes. Your Journey to Joining Toss Bank Application submission and...

Join Toss Securities as an HR Operations Manager! The HR Operations Manager will oversee the entire employee lifecycle from recruitment to departure, actively engaging in data organization, systematization, and enhancements at each stage. More than just an administrative role, you will design and maintain the HR operational structure. By analyzing compensation data and developing HR service platforms, you'll lead responses to regulatory bodies such as the Financial Supervisory Service and the Korea Financial Investment Association. As our organization scales rapidly from 500 to 2,000 employees, you will proactively identify challenges and build operational infrastructure to support business growth. About the Team You'll Join: The HR Operations Manager is part of the People Solution Partner Team within the People & Culture Division. You will collaborate closely with HR Business Partners, Regional Business Partners, and HR Consultants, while also communicating effectively with legal, finance, and compliance departments. Your responsibilities will include managing Workday-based HRIS operations, internal controls, and executive governance. Your Future Responsibilities: Understand the complete flow of HR operations from hiring to resignation, meticulously organizing and systematizing data, and continuously improving operational structures. Manage HR budgets, vendor contracts, and follow-up operations post-restructuring to ensure HR operations reliably support business growth. Maintain data integrity across HR systems like Workday, while identifying points for automation to enhance HR service platform efficiency. Accurately analyze compensation adjustments, manage HR dashboard data, and monitor working hours to provide insightful HR data analytics. Lead compliance with regulatory submissions to bodies like the Financial Supervisory Service and the Financial Services Commission. Oversee executive governance operations, including appointments, removals, board reporting, and electronic disclosures. We’re Looking for Candidates Who: Have over 3 years of practical experience in HR operations and are detail-oriented with a passion for organization and structure. Capable of running established processes reliably while also identifying areas for improvement, valuing both timelines and accuracy. Possess a mindset for efficiency and have experience in enhancing existing processes. Have strong data literacy skills to analyze HR data and are adaptable with automation tools, having explored new tools to improve work processes. Preferred Experiences: Experience in HR operations within financial regulatory industries such as securities firms, banks, or fintech is a plus. Experience managing SaaS-based HR systems like Workday is highly desirable. Application Process at Toss Securities: Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Offer Negotiation > Final Acceptance and Onboarding Important Notes: Any discrepancies found in resumes or submitted documents, or verified disciplinary actions during employment history may result in cancellation of the application. Candidates who fall under hiring prohibitions or disqualifications as per Toss Securities regulations may have their applications revoked. Persons with disabilities and national veterans are given preference as per relevant laws during the application process. A Note to Future Colleagues: We are excited about the potential of working together and contributing to a thriving workplace culture.

Join our dynamic Finance team at Toss Securities, where you will play a crucial role in supporting our accounting and financial operations.About Our TeamThe Finance Admin (Accounting) position is a vital part of our Finance team, working alongside Accounting, Treasury, FP&A, and Tax professionals.We closely collaborate with various departments including Product Owners, Compliance, Securities Settlement, and Ledger Systems.Our Finance team comprises members with 5 to 20 years of experience, bringing diverse backgrounds from finance, securities, general trading, and commerce.We aim to build the industry's leading Finance team to enhance Toss Securities' innovative journey.Your ResponsibilitiesAssist in the regular closing processes of Toss Securities.Prepare and submit periodic and ad-hoc reports to external organizations in compliance with regulatory standards.Identify inefficiencies in financial operations and work towards their optimization and automation.Analyze account details in financial statements and verify their accuracy.Identify inefficiencies and risks in assigned tasks, and improve processes accordingly.Who We Are Looking ForApproximately 1 year of experience in financial accounting is desirable but not mandatory.Basic accounting knowledge is essential.We seek proactive individuals who can take initiative in expanding their responsibilities.The Journey to Join Toss SecuritiesApplication Submission > Job Interview > Cultural Fit Interview > Compensation Negotiation > Final Offer and OnboardingImportant NotesThis is a contract position for 1 year, with the possibility of extension or transition to a permanent role based on performance evaluation.Additional InformationEmployment may be rescinded if inaccuracies are found in the resume or if disciplinary actions are noted in the work history.Hiring may be canceled for individuals who fall under the company’s prohibited candidates or disqualification criteria.A Message for Future Colleagues“Are you ready to help us set the industry standard?”One of the most surprising aspects of working at Toss Securities is the absence of unnecessary reporting and approvals, allowing me to focus on what I deem important. This leads to numerous opportunities to collaborate with other departments to build new services, fostering growth and enjoyment in creating something impactful alongside the company. Recently, my team and I have been studying accounting policies and tax laws to establish industry best practices, which has been incredibly fulfilling.As a rapidly growing company, the chance to forge new paths rather than follow established ones is abundant. This thrilling experience is something I believe cannot be easily found elsewhere. Let’s create groundbreaking services together with the best colleagues!

About the Team You Will Join The Security Division at Toss Bank consists of several teams: Security Policy Team, Privacy Protection Team, System Security Team, Network Security Team, Security Red Team, Security Blue Team, IT Service Team, and Security Audit Team. The Security Audit Manager will be responsible for conducting regular and ad-hoc audits as well as overseeing compliance checks across the organization within the Security Audit Team. This division collaborates with various teams to create safe and reliable services at Toss Bank. The Security Audit Team works closely with product teams and legal, compliance, platform engineering, and internal audit teams to ensure compliance and internal control. The Security Division is committed to providing secure electronic financial transaction services and strives to embed security into the daily operations of its users. Responsibilities You Will Undertake Conduct regular and ad-hoc internal audits of Toss Bank’s information security activities. Respond to periodic and ad-hoc audits conducted by the internal audit team and manage IT and security aspects of internal control accounting audits. Perform internal checks on information security responsibilities and self-audits. Improve internal controls related to information security. Assess compliance activities across the organization and enhance procedures as necessary. Conduct checks related to safeguarding personal credit information. Perform internal audits on significant information security incidents and penalties occurring within financial institutions. Ideal Candidate Profile Understanding of IT and information security fundamentals is essential. Experience in IT or information security audits and assessments is required. In-depth knowledge of information security regulations, such as electronic financial supervision regulations, credit information industry regulations, and standards for ensuring the safety of personal data, is desired. Ability to understand and enhance internal control measures related to information security. Familiarity with emerging technologies such as MSA, Kubernetes, and Cloud is a plus. Excellent communication skills to collaborate effectively with various teams are necessary. Possession of information security audit certifications (CISA, CISSP, etc.) is advantageous. Application Recommendations Share specific examples of experiences related to internal/external audits or internal controls relevant to the job responsibilities. Include experiences that demonstrate improvements in IT environments or information security practices through audit responses and self-assessments. If you have experience solving complex problems in collaboration with various organizations, be sure to highlight that. Journey to Join Toss Bank Application submission > Job interview > Cultural fit interview > Reference check > Offer negotiation > Final acceptance Please Note If any false information is found in your resume or supporting documents, or if any disciplinary action during your employment history is confirmed, your application may be canceled. Applicants who fall under the disqualifying criteria as per Toss Bank’s employment regulations may have their applications revoked. Individuals with disabilities or who are veterans will receive preferential treatment in accordance with relevant laws.

About the Team You'll Join The ML Engineer (Platform) at Toss Securities is part of the ML Platform Team within the Product Division. The mission of the ML Platform Team is to create an optimal machine learning platform that enables efficient and stable development and operation of various AI/ML services at Toss Securities. Your Responsibilities Upon Joining Develop and enhance the Gateway system, the gateway for ML services. Develop and operate a Gateway system based on FastAPI that handles enterprise-level LLM API requests. Design and implement authentication, routing, traffic control, fault isolation (Circuit Breaker, Fallback), large-scale TPS processing, and load balancing strategies from both application and infrastructure perspectives in the FastAPI-based Gateway application. Manage and serve ML services. Directly operate a machine learning model serving system in a Kubernetes environment. Design and improve the LLM serving architecture to operate stably under large traffic conditions. Monitor latency, error rates, resource usage, and analyze and resolve operational issues for the models in service. Identify root causes of failures and implement structural improvements, including operational policies and architecture. Develop and manage a common ML platform for the company. Develop and manage a common platform for efficiently operating the training and serving of internal ML/LLM models based on Kubeflow. Continuously monitor and optimize the performance and resources of workloads executed on the platform. Build infrastructure for LLM-based services. Operate LLM services using various serving frameworks such as vLLM, SGLang, and Triton. Manage the environment to ensure stable operation of training and serving workloads on high-performance GPU clusters like H100/B300. Build and operate a large-scale data training environment for finance domain-specific LLMs. We Are Looking for Candidates Who: Are proficient in one or more programming languages such as Python, Go, Java, or Kotlin, and have experience designing and developing API servers in production environments. Have experience developing or operating API Gateways (Nginx, Kong, etc.) or LLM Routers (LiteLLM, Envoy AI Gateway, etc.), with a background in handling high-volume traffic and incident response. Have experience operating serving logs and event pipelines integrated with Kafka, Elasticsearch, and Kibana. Have experience defining monitoring metrics for model serving and configuring and operating dashboards using Prometheus and Grafana. Have experience operating ML/LLM model serving using KServe, BentoML, vLLM, SGLang, etc. Have experience directly managing MLOps components (Kubeflow, KServe, Airflow, Argo CD, MLflow, etc.) in Kubernetes environments and debugging and resolving issues. Can design and apply long-term improvement plans through root cause analysis beyond short-term responses to issues that arise during service operations. Additional Preferred Experience: Experience in related fields or technologies will be a plus.

Join Our Dynamic Team!The Security Division at Toss Securities comprises the Security Policy Team and the Security Engineering Team. The Security Policy Team includes both the Information Security Manager and the Privacy Manager.Our division receives robust support across the organization to ensure the safety of Toss Securities services, fostering close collaboration with all departments.Team members actively share experiences and knowledge with peers in similar roles across our affiliates, working together to achieve shared objectives.Our team consists of members with diverse experiences ranging from 1 to 20 years, most of whom have backgrounds in information security firms or as corporate information security officers.This year, we aim to enhance our information security management system through global security standard certifications and focus on risk management centered around data flows and business processes, alongside conducting research for regulatory advancement. Your Responsibilities:Establish and manage information security policies in accordance with regulations such as the Electronic Financial Transactions Act, Credit Information Act, Information and Communications Network Act, and Personal Information Protection Act.Oversee the establishment and maintenance of information security policies and manage domestic and international security certifications (ISMS-P, ISO/IEC 27001, 27701, 27017, 27018, PCI-DSS, etc.).Identify and assess security risks, derive improvement tasks, and manage them effectively.Respond to internal audits, inspections, and external agency assessments, and carry out post-management activities.Conduct security training and campaigns for employees to enhance security awareness.Assess the security of new services and technologies (cloud, DevOps, etc.) and improve policies accordingly. Ideal Candidate Profile:Strong understanding of information security regulations and compliance.Experience in operating information security management systems and obtaining security certifications.Hands-on experience in security audits, risk assessments, and policy management activities.Experience in policy or planning roles within a financial or fintech environment is a plus.Interest and understanding of security threats and the latest IT environments will be advantageous. Joining Toss Securities:Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Negotiation > Final Offer & Onboarding Please Note:Any falsehoods found in resumes or application documents, or any disciplinary issues during employment history, may lead to cancellation of employment.Individuals categorized as hiring prohibitions or disqualified under Toss Securities regulations may have their applications canceled.Individuals with disabilities or who are veterans will be given preference in accordance with applicable laws. A Message for Future Colleagues:Work within a supportive environment to develop a robust information security management system.All colleagues at Toss Securities recognize the importance of information security, and the Security Division is committed to fostering this understanding.We are undertaking various challenges to present new cultures and trends while ensuring compliance with mandatory requirements, offering a chance to gain diverse experiences beyond conventional tasks.We are looking for passionate colleagues who are eager to contribute to the security of Toss Securities and achieve explosive career growth.

#LI-DNI Join Our Team! As an Overseas Operations Specialist at Toss, you will be part of the Retail Operations Team alongside the Overseas Service Specialist, Overseas Operations Manager, and Retail Operations Manager. The Retail Operations Team aims to provide rapid solutions to issues and deliver exceptional customer satisfaction through overseas stock operations, establishing Toss Securities as the leading securities firm for international stocks. Your Responsibilities: Manage communication with brokers and relevant departments to resolve overseas stock issues quickly, overseeing overseas stock items, rights, and operations. Handle customer inquiries related to overseas stocks during nighttime hours, as well as domestic stock inquiries and basic operational tasks. Ideal Candidate: Experience in trading international stocks is essential. No restrictions on international travel or financial transactions. Proficiency in business English is a plus! A customer-first mindset is crucial, given the direct interaction with clients. We are looking for individuals with positive energy and confidence. Please Note: This position is a contract role with a duration of one year. Shifts will be on a three-shift rotation during the night (Day: 10 AM - 7 PM / Middle: 5 PM - 2 AM / Night: 11 PM - 8 AM). Night shift allowances will be provided. Days off may vary according to the overseas stock operation schedule. False information in the resume or documented history could lead to cancellation of employment. Individuals on the restricted employment list or with disqualifying factors according to Toss Securities’ policies may have their applications canceled. Individuals with disabilities and veterans will receive preferential treatment in accordance with relevant laws. Your Journey with Toss Securities: Application Submission > Job Interview > Cultural Fit Interview > Final Acceptance and Onboarding A Note from a Current Team Member: "I am thrilled to contribute to creating differentiated overseas stock services and witness their impact on the growth of Toss Securities. The speed at which we develop new services here is incomparable to my previous experiences at major firms."

About the Team You'll JoinThe Security Division at Toss Bank comprises the Security Policy Team, Privacy Protection Team, System Security Team, Network Security Team, Security Red Team, Security Blue Team, IT Service Team, and Security Audit Team.As an Information Security Manager within Toss Bank's Security Division, you will be responsible for ensuring that established security policies and standards are effectively implemented and monitored in real-world scenarios, and you will be part of the Security Policy Team.The Security Division collaborates with various teams to create a safe and trustworthy service. The Security Policy Team works closely with product organizations to establish secure services from a security strategy, certification, and policy management perspective, while also collaborating with Legal & Compliance, Platform Engineering, and Internal Audit for regulatory compliance and internal controls. This collaborative effort enhances teamwork towards common goals.Toss Bank's Security Division is dedicated to providing secure electronic financial transaction services and strives to embed security into user operations to ensure a consistently safe working environment. What You'll Be DoingEstablishing and managing security review and compliance criteria, and conducting assessments.Performing checks on critical information communication infrastructure, electronic financial infrastructure management systems, and cloud management frameworks.Preparing for and responding to information security certifications (such as PCI-DSS, ISO27001, ISMS-P).Verifying and checking security requirements when collaborating with external partners and organizations.Defining security architecture and requirements when implementing new IT technologies.Designing and standardizing the enterprise information security framework. Who We Would Like to Join UsA background in development security is a plus.An interest and understanding of security threats and the latest IT environments is desirable.For senior-level candidates, we need individuals who understand security requirements related to financial information protection compliance (laws, guidelines, etc.).Knowledge of new technologies such as MSA, K8S, and Cloud is essential.Understanding of financial IT systems and service architectures is necessary.High proficiency in information security architecture and security solutions is required.Capability to review network separation architecture and cloud service architecture suitable for the financial sector is needed.For junior-level candidates, an understanding of IT infrastructure (servers, networks, DBMS, endpoints, etc.) is necessary.Experience in preparing for and responding to information security certifications (such as PCI-DSS, ISO27001, ISMS-P) is critical.Experience in checking management systems for critical information communication infrastructures and electronic financial infrastructures is required.Ability to conduct checks according to security review criteria and provide guidance on improvements for identified deficiencies is essential. How to Craft Your ResumeProvide specific examples of your work experience.Share concrete examples of experience in management system checks, security reviews, or security architecture design and review in the relevant field.Include accomplishments or improvements achieved while performing security check and review tasks.Given the need for collaboration across various teams, highlight any experience in resolving complex problems with diverse organizations. Your Journey to Join Toss Bank

Toss Careers is looking for an Information Security Manager based in Seoul. This position takes charge of the organization's security efforts, focusing on safeguarding data and infrastructure against threats. Key responsibilities Lead and grow a team of security professionals Work with teams throughout the company to spot and address vulnerabilities Apply security best practices across systems and processes Build and maintain a reliable security framework This role centers on proactive risk management and collaboration to ensure the company's information remains secure.

Role Overview Control Risks is seeking a Physical Security Specialist based in Seoul, South Korea. This position focuses on evaluating, planning, and putting in place physical security solutions that safeguard client assets and people. The role involves working closely with stakeholders to uphold strong security standards across projects and operations.

Join Our Team The Global Platform team is dedicated to creating a securities trading platform (ledger system) to facilitate Toss Securities' entry into international markets. We collaborate with local system vendors and relevant institutions (exchanges, clearing agencies, banks, etc.), serving as a vital link between our headquarters in Korea and local operations. This position requires a broad understanding of securities industry systems, involving account opening, order execution, payment and settlement, deposits and withdrawals, tax compliance, and regulatory responses. Your Responsibilities Manage the schedule, resources, and risks of the securities platform construction project in collaboration with global vendors. Translate Toss's business requirements into comprehensible formats for vendors and validate implementation outcomes. Act as a communication hub between internal Toss teams (development, product, operations, etc.) and vendors. Balance local regulatory requirements with Toss's product direction, prioritizing requirements as needed. Gain knowledge in the securities domain (trading, clearing/settlement, account management, taxes, etc.) and potentially manage operations post-system launch. Serve as a bridge between the Korean headquarters team and local vendors/institutions. Ideal Candidate Experience in the financial sector, particularly in securities, banking, or insurance, is essential. Prior securities experience is preferred. Proven experience managing collaborative projects with external vendors or partners is required. A basic understanding of technical aspects (API, system architecture, databases, etc.) is advantageous. Strong communication and coordination skills in complex stakeholder environments are necessary. Willingness to travel frequently for overseas assignments is required. Experience in large-scale projects, such as next-generation system development, is a plus. Experience in overseas market entry projects (securities/finance) is preferred. English communication skills are a bonus. Application Process Application submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding Please Note Any falsified information in resumes or documents, or confirmed disciplinary actions during employment history, may lead to cancellation of the application. Applicants who fall under Toss Securities' hiring restrictions or disqualifications may also face application cancellation. Individuals with disabilities or national veterans are given preferential treatment in the application process, as per relevant laws.

About the Team You Will Join The Internal System Engineer position at Toss Securities is responsible for managing in-house infrastructure and IT support, collaborating closely with IT Managers and Internal Network/System Engineers. You will design both wired and wireless networks for the headquarters and remote locations, while integrating user-centric security technologies to create a seamless work environment. Your role will focus on enhancing internal infrastructure and operational efficiency, allowing Toss Securities colleagues to concentrate on their work. Your Responsibilities Upon Joining Establish and operate in-house VDI/HCI/virtualization infrastructure. Oversee the deployment and management of the Horizon VDI environment. Build and manage the necessary servers and HCI infrastructure. Streamline repetitive tasks through automation and scripting solutions. We Are Looking for Someone Who Has experience in building and managing servers based on Windows and Linux. Is capable of establishing and operating hypervisor environments such as VMware and Docker. Can manage VMware Horizon-based VDI environments. Possesses experience in setting up and operating various infrastructure services such as DNS, DHCP, AD, and SMB. Has basic knowledge of NAC, VPN, and DLP technologies. Has experience in establishing and managing monitoring tools like Prometheus, Grafana, and Zabbix. Is proficient in automation development using Python, PowerShell, and Ansible. Journey to Joining Toss Securities Application > Job Interview > Cultural Fit Interview > Reference Check > Salary Negotiation > Final Acceptance and Onboarding Please Note If any false information is found in the resume or if disciplinary actions are confirmed during employment, the recruitment may be canceled. Applicants who fall under the hiring restrictions or disqualifying reasons according to Toss Securities regulations may have their applications canceled. Individuals with disabilities or who are veterans will be given preferential treatment according to relevant laws. A Word for Future Colleagues> "You can experience everything as a System Engineer." - I joined Toss Securities after working as a System Engineer in a mobile service company with large traffic. In my previous role, I managed numerous platforms, but at Toss Securities, I realized I had a superficial understanding of infrastructure operations. Here, I closely collaborate with various departments and gain a comprehensive understanding of the overall architecture. I recommend Toss Securities for System Engineers who are eager to learn, passionate about their work, and seeking the best environment for a career quantum leap!

About the Team You Will Join The Data Engineer (Search) at Toss Securities is part of the AI Tribe within the AI Intelligence Silo. This Silo is a collaborative team consisting of Data Engineers, Machine Learning Engineers, Server Engineers, Frontend Engineers, Product Owners, and Product Designers, all working towards creating AI-driven information services leveraging securities domain data. Our focus is not just on presenting information but on rapidly experimenting with how to process and present data in a way that assists investors effectively. Search acts as the primary entry point connecting various securities data and AI services, with the Data Engineer (Search) being responsible for search/indexing functionalities that can be utilized across AI-based data services. The role centers around designing and operating the data and indexing aspects that constitute our search services, concentrating on stably designing and managing the data flow and infrastructure for search indexing rather than just enhancing algorithms or ranking models as seen in larger portals or e-commerce. Key Responsibilities Design and manage the indexing pipeline for Toss Securities search services, including stocks, autocomplete, news, and community features. Architect and reliably operate real-time/big data pipelines for search indexing. Gain insights into Elasticsearch-based search indexes and enhance the indexing structure and performance from a data perspective. Collaborate on data integrity management and re-indexing strategies to ensure stable data delivery for search. Gradually expand your responsibilities into areas beyond search, such as Graph search and ingestion of new data sources. Who We Are Looking For A candidate with over 3 years of experience in Data Engineering. Strong programming skills are preferred. Experience in designing or operating real-time or batch-based data pipelines is a plus. Experience in collecting and processing diverse data sources for service utilization is beneficial. Familiarity with big data processing platforms such as Spark, Hadoop, Impala is an advantage. A passion and curiosity for learning new domains and technologies are highly valued. A preference for collaborative environments where feedback and growth are encouraged is ideal. Additional Preferred Experience Experience using or managing search service infrastructures like Elasticsearch, Lucene, or Solr is advantageous. A genuine interest or experience in search domains such as search engines, recommendations, or ranking systems is a plus. Resume Tips Please detail your experience in designing/developing/operating data pipelines, ETL, streaming, etc. Highlight your role in projects and what you learned and improved through those experiences. If you have experience with search or Elasticsearch, even on a smaller scale, please describe the problems you solved. Your Journey to Joining Toss Securities Application submission > Job interview > Cultural fit interview > Reference check > Compensation discussion > Final acceptance and onboarding

About the Team You'll Join The Data Analytics Engineer at Toss Securities is part of the Data Warehouse Team within the Data Division. Your responsibilities will be focused on Data Platform and Data Mart tasks. While your primary focus will vary, you will also engage in cross-functional projects. The Platform tasks involve maintaining and optimizing ETL/Pipeline Tools to effectively manage the DW Mart tables. You will explore and implement new methods to reduce DW operation time with limited resources. Our goal is to maximize data utilization across the organization using tables managed by the DW team. The current team consists of approximately 7 members with varying experience levels ranging from 2 to 14 years, coming from diverse backgrounds including portals, banking, gaming, and startups. Curious about the Data Division? The Data Division at Toss Securities aims to become the world's leading securities firm in data handling, contributing through data technology, services, and data-driven decision-making. We foster close collaboration among various data professionals and enjoy our work. Regular Tech Weekly sessions allow us to share expertise, and you can freely engage with different teams to learn from each other. Your Responsibilities Experience and contribute to an efficient DW environment within a rapidly growing agile organization. Design data marts and develop and automate DW Data Workflows based on the Hadoop Ecosystem and open-source solutions. Identify and implement methods for structuring and automating numerous DW/Mart tables. Process large volumes of data swiftly and effectively to create and manage various features. Establish Data Quality Checks and Governance within the data marts. Experience in deriving and establishing system requirements for large data processing and analysis is a plus. Ideal Candidate At least 5 years of experience as a Data Engineer is essential. You should possess a fundamental understanding of RDBMS, Hadoop Ecosystem, and Data Warehousing. Proven experience in leading the design, construction, and operation of data marts is required. You should be capable of installing, operating, and troubleshooting Airflow, DBT, and Django, with the ability to modify open-source tools to develop features needed for securities DW. Experience in simplifying complex problems or automating repetitive tasks using data models is critical. Extensive experience in efficiently processing big data using Spark is highly desirable. Intermediate proficiency in Python and advanced skills in SQL are required. Resume Tips If you have resolved critical issues while operating platforms or optimized performance and system resource usage, please include those experiences. Be specific about impactful projects you have worked on. If you have addressed bugs or issues while using open-source tools, or developed or enhanced features, please detail those experiences. Highlight the results of any improvements made in actual services, quantified if possible (please exclude sensitive information if necessary). Join Toss Securities Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Negotiation >...