Principal Security Engineer

At Pipedrive, we recognize that exceptional talent is the cornerstone of our innovative products. Our team embodies our core values, and we make hiring decisions based on these principles as well. Since our inception in 2010, Pipedrive has dedicated itself to empowering sales and marketing teams with intuitive, robust tools that enhance productivity and stre…

Role Overview Wise is looking for an Engineering Lead to join the Global Currencies team in Tallinn. This role focuses on guiding technical projects that help make international money transfers simpler and more affordable. What You Will Do Lead and support a team of engineers working on currency-related features and improvements Mentor team members, helping them grow their technical and problem-solving skills Shape the direction of projects that impact how people move money across borders Impact Your leadership will help Wise deliver reliable, low-cost global payments by building and refining products that serve customers worldwide.

We are seeking a skilled Engineering Manager to spearhead our Rides Safety team. In this pivotal role, you will be responsible for developing and maintaining the systems that ensure the safety of both riders and drivers throughout every trip. This includes implementing measures to prevent abuse and dangerous behavior, as well as responding swiftly to incidents. Your work will have a significant, measurable impact on millions of trips and will shape safety-related engineering and product decisions at Bolt.About Us:With a customer base exceeding 200 million across over 53 countries, Bolt is recognized as one of the fastest-growing technology companies in Europe and Africa. Our success is driven by our dedicated team.We are committed to fostering an inclusive environment where everyone feels welcome, regardless of race, color, religion, gender identity, sexual orientation, national origin, age, or disability. Our ultimate mission is to create cities that are designed for people, not cars, and we need your expertise to help us achieve this vision!About the Role:The Rides Safety team operates at the intersection of engineering, product, and operations. You will lead a diverse engineering team (including backend developers, mobile platform experts, and data scientists) in delivering risk signals, in-trip safety features, and incident management tools utilized by internal teams across various markets. This role demands a balance between user experience, growth, and operational costs while prioritizing safety and risk mitigation. You will engage in complex decision-making processes, weighing the trade-offs between user friction and exposure, and employing data-driven insights to enhance the reliability of our safety systems across multiple regions.

Join Marabu Airlines as a Maintenance Operation Control Engineer (MOCC Engineer) and be an integral part of our team, ensuring the airworthiness and operational readiness of our A320neo fleet. In this dynamic and hands-on role, you will oversee both scheduled and unscheduled maintenance activities, collaborate closely with flight crews and maintenance providers, manage short-term planning, and lead efforts in Aircraft on Ground (AOG) situations. This position is perfect for individuals possessing strong technical expertise, exceptional problem-solving abilities, and a proactive mindset towards ensuring safe and efficient flight operations.Key Responsibilities:Oversee and coordinate scheduled and unscheduled maintenance for the Marabu Airlines A320neo fleet as part of the Maintenance Control team.Maintain continuous communication with flight crews, line maintenance providers, and operations control regarding fleet status and necessary maintenance actions.Prepare and manage short-term maintenance planning for the MBU fleet.Monitor and execute the resolution of any open defects on Marabu Airlines aircraft.Identify bottlenecks and weaknesses in line maintenance operations, proactively implementing solutions to ensure a smooth maintenance process, including support for spare parts ordering and shipment management.Continuously monitor the flow of line maintenance records and update the tracking system accordingly.Lead AOG situation management, coordinating recovery processes from initiation until the aircraft is serviceable again.Provide ongoing updates to both internal and external partners regarding the technical status of the fleet.Collaborate with line maintenance providers and conduct regular visits to line stations and SCAMT providers to supervise on-site technical operations, ensuring effective communication between Marabu and its partners.

About the Role Restream is looking for a Security Engineer in Tallinn to help protect our products and systems as we continue to grow. This role focuses on solving complex security problems and maintaining a high standard of safety across our technology. Security Engineers at Restream work closely with engineering teams, security researchers, and external partners to strengthen our infrastructure and processes. We value straightforward, reliable solutions and a collaborative approach within small, focused teams. Main Responsibilities Perform thorough application security assessments and penetration tests. Work with engineers to analyze system architecture, identify threats in new features, and design controls to protect customers. Coordinate with third-party vendors for annual security testing and reporting. Manage and expand our private bug bounty program, with a goal of moving to a public program. Participate in peer code reviews, both giving and receiving actionable feedback. Monitor new technologies and explore opportunities to enhance our security posture. Help secure and maintain the resilience of Restream’s production infrastructure. Location This position is based in Tallinn.

Join our dynamic Finance Data Warehouse team as a Senior Data Analytics Engineer and play a pivotal role in shaping the future of mobility. You will analyze business requirements and data, design robust data models, implement efficient data pipelines, and create insightful metrics, reports, and dashboards that drive decision-making in the Finance and Commerce domain.With over 200 million customers across more than 50 countries, Bolt is one of the fastest-growing technology companies in Europe and Africa. Our success is fueled by our commitment to fostering an inclusive workplace where everyone is valued, regardless of their background.Our mission is clear: to transform cities for people, not cars. We need your expertise to help us achieve this vision!

Join Creditstar Group, a dynamic and fast-growing international consumer finance company headquartered in Tallinn, Estonia, with operations spanning multiple European markets.As a forward-thinking financial technology firm, we leverage automated processes, sophisticated algorithms, and in-depth data analysis to provide accessible financial instruments to over 175 million individuals in our target regions. Our team is made up of ambitious professionals who prioritize innovation, operational efficiency, rapid growth, and exceptional performance. Discover more about us at www.creditstar.com.We envision a future where we create and deliver cutting-edge digital banking products. If you're eager to be part of this exciting journey, we invite you to explore this opportunity.

We are seeking an innovative Engineering Manager to spearhead our Payments User Experience (UX) team. In this role, you will influence the payment experiences of millions of users across multiple platforms, including Rider and Driver apps, Food delivery, Courier services, and Business solutions. You will be instrumental in creating a cohesive and high-quality payments UX platform, ensuring that transactions are seamless, intuitive, and trustworthy at scale.As an Engineering Manager, you will oversee a cross-functional engineering team that encompasses mobile (iOS, Android, React Native), web, and backend technologies. You will engage closely with architecture and critical technical decisions, defining how payment flows are developed and integrated within Bolt to build scalable solutions that function effortlessly across various platforms and use cases. Collaboration with product, design, and engineering teams across diverse verticals will be key to aligning on a unified strategy and ensuring consistent, high-quality payment experiences.

Join our dynamic development team as a C++ Developer at Playtech, where innovation meets technology. In this role, you will design and implement high-performance software solutions, collaborate with cross-functional teams, and contribute to the development of cutting-edge gaming products.

Bolt is working to reshape urban mobility. The team in Tallinn is looking for a Lifecycle Marketing Coordinator focused on engaging users through targeted campaigns. Role overview This position supports the Marketing, Expansion, and Product teams. The main focus is on executing lifecycle campaigns across email, in-app, and push messaging channels. The goal is to deepen user engagement and help retain a growing customer base. What you will do Plan and launch targeted messaging campaigns using email, in-app notifications, and push messages Work closely with cross-functional teams to align lifecycle marketing with broader business goals Support efforts to improve user engagement and retention through well-timed, relevant communications Requirements Experience or strong interest in lifecycle marketing or campaign execution Ability to collaborate with multiple teams Based in Tallinn, Estonia

Join Wise as a Technical Support Engineer (Enterprise) in Tallinn, where you will play a vital role in providing exceptional technical support to our enterprise clients. Your expertise will help troubleshoot and resolve complex issues, ensuring customer satisfaction and loyalty.As part of a dynamic team, you will collaborate with various stakeholders to enhance our products and services. Your technical acumen and problem-solving skills will empower you to address challenges effectively, making a significant impact on our clients’ experiences.

Role Overview Pipedrive is hiring a Principal AI/ML Scientist & Engineer in Tallinn, Estonia. This senior role focuses on shaping projects that use artificial intelligence and machine learning to improve product features and user experience. What You Will Do Work closely with teams across the company to develop advanced algorithms and data-driven solutions Analyze complex data sets to uncover insights and inform product decisions Apply AI and ML expertise to address evolving needs of Pipedrive users Location This position is based in Tallinn, Estonia.

Join our innovative ML Platform team as a Senior Machine Learning Platform Engineer, where you'll play a crucial role in developing, enhancing, and scaling the AI infrastructure that drives Bolt's intelligent services.With over 200 million customers across more than 50 countries, Bolt is recognized as one of the fastest-growing tech companies in Europe and Africa, primarily due to our dedicated team. We pride ourselves on fostering an inclusive environment that welcomes individuals from all backgrounds, regardless of race, color, religion, gender identity, sexual orientation, age, or disability. Our mission is to transform cities into spaces for people rather than cars, and we need your expertise to make this vision a reality!About the RoleThe ML Platform Team simplifies the implementation of ML/AI at scale. We enhance development, testing, and deployment processes for hundreds of real-time algorithms. Our responsibilities include managing training orchestration, developing an inference software stack, and maintaining a Feature Store that encompasses VectorSearch and RAG tooling. We are also tasked with creating tools for LLM and CI/CD for ML, addressing all aspects of ML infrastructure.Our technology stack features TypeScript, Python, Spark (for batch and structured streaming), Airflow, n8n, MLflow, LiteLLM, AWS SageMaker, Redis, Elasticsearch, Docker, Kubernetes, AWS (S3, EKS), Terraform, and Great Expectations.

The Engineering team at Veriff is dedicated to creating software that addresses the challenges of online identity verification. As we navigate a rapidly evolving landscape, we aim to stay ahead of the curve with innovative solutions. We are currently seeking a talented Engineering Manager to lead our Customer Portal team.This team is responsible for developing and maintaining our robust self-service platform, which thousands of SaaS and Enterprise clients rely on to manage their identity verification services. The Customer Portal is pivotal in ensuring our users can efficiently procure, oversee, and control their services, enhancing their overall experience with Veriff.As the Engineering Manager, you will embody a product-focused mindset, engineering prowess, and exceptional leadership abilities to propel the team forward—enhancing efficiency, scalability, and reliability. In this role, you will collaborate closely with product managers to unveil new use cases for our customers and elevate our data-driven engineering standards, prioritizing efficiency and operational excellence. You will ensure our workflow is robust, utilizing tools like Jira to maintain effective processes.Your contributions will help us protect honest individuals online by:Setting a clear vision for the team while strategically planning for challenges related to growth and scaling.Collaborating with product managers, designers, and analysts to develop software that is effective, engaging, and directly addresses customer needs.Fostering a shared understanding of team progress, decision-making, and direction across the organization.Encouraging personal and professional growth within the team through mentorship, collaborative work, and task delegation.Actively participating in the recruitment process to build a diverse and skilled team, while also planning for future hiring needs.Working with fellow engineering leaders on initiatives that influence the engineering department and developing the technical and product vision.Being hands-on when necessary to ensure project success.

Join our team as a Senior Analytics Engineer where you will take charge of scaling Bolt’s Competitive Intelligence data domain within the Rides Finance sector. Your expertise will drive the transformation of data from third-party vendors into production-ready data models that support reliable dashboards, impactful strategic analyses, and informed decision-making throughout the organization.Are you prepared to influence a global audience? Become a part of our mission!About UsBolt stands as one of the fastest-growing technology firms in Europe and Africa, proudly serving over 200 million customers across more than 50 countries. Our diverse team, representing over 100 nationalities, is united by a shared vision: to create cities designed for people, not cars. We need your talent to help us realize this ambition!Role OverviewAs a Senior Analytics Engineer in the Competitive Intelligence domain, you will be responsible for the complete data architecture that supports Bolt’s competition metrics and insights. This involves building and maintaining a robust, scalable, and well-governed data foundation, from the ingestion of third-party data to delivering curated, analytics-ready data marts that empower teams across the company.This position merges data engineering with analytics, emphasizing technical ownership. You will create reliable data pipelines, standardize business logic, and ensure that competition data is trustworthy and built for longevity. A deep understanding of how this data drives strategic analyses and informs business decisions is essential for building models and metrics that are accurate and relevant to real-world contexts.Collaboration with analysts and business stakeholders will be crucial to ensure that our data foundation aligns with genuine strategic needs. While the role is fundamentally engineering-focused, its success relies on strong teamwork with the departments that utilize these insights daily.

Join Creditstar Group, an innovative and rapidly expanding international consumer finance organization based in Tallinn, Estonia. We operate across various European markets, providing cutting-edge financial solutions.As a technology-driven company, we leverage automated processes, algorithms, and data analysis to offer financial products to over 175 million people in our target regions. Our team is composed of ambitious professionals who prioritize innovation and performance. To learn more about us, visit www.creditstar.com.We aim to create the digital banking solutions of tomorrow. If you're interested in shaping the future of finance, we want you on our team!

Bolt is looking for two experienced Senior React Native Engineers to join the team in Tallinn. One position focuses on mobile development with React Native, while the other combines fullstack skills across React.js, React Native, and backend technologies. Bolt serves over 200 million users in more than 50 countries, making it one of the fastest-growing tech companies in Europe and Africa. The company values an inclusive workplace where people of all backgrounds are welcome. Role overview This role centers on developing and improving the Bolt Food platform, which connects users with over 40,000 registered restaurants. The platform is available on iOS, Android, and web. As a Senior React Native Engineer, you will work on both enhancing current features and building new ones to improve the user experience. Requirements Extensive experience with React Native for mobile app development For the fullstack position: strong skills in React.js and backend development Ability to contribute to a product used by millions of people Based in or willing to relocate to Tallinn, Estonia Our mission Bolt aims to transform cities into spaces designed for people rather than cars. Joining the team means contributing to this vision and helping shape the future of urban mobility.

Join moss, where we empower finance professionals to automate their daily tasks and drive strategic decisions.Our unique culture encourages impact and growth, fostering a team that is committed to continuous learning and excellence. Recognized by Sifted’s Rising 100 and LinkedIn's Top Startups, we are dedicated to advancing your career and ensuring the long-term success of moss.We are actively seeking experienced Senior Backend Engineers (f/m/d) to join our engineering teams in Tallinn, with open positions in:Sales EnablementPricing & BillingAcquisitionSpend ManagementActivation & Card SpendCollaborate with designers, product managers, and frontend engineers to transform innovative ideas into reality, crafting tools that streamline and automate everyday business tasks.

At Veriff, we are dedicated to ensuring online safety by verifying identities at scale. Our innovative software processes over 10,000 government-issued documents from more than 190 countries, enabling millions of verified identities annually. We strive to set the standard for trust in the digital world, supporting businesses in connecting with honest individuals online.As the Director of Partnerships, you will elevate our reseller ecosystem into a powerful growth engine. With a robust network of partners in place, your goal is to transition from a maintenance approach to developing a scalable partnership strategy that drives consistent revenue streams.This role is an Individual Contributor position initially, where you will take the lead in architecting and implementing strategies. If you succeed in significantly enhancing our revenue through this vertical, you will pave the way to build your own team.

At TechBiz Global, we are dedicated to delivering exceptional recruitment services for our esteemed clients. We are currently on the lookout for a Senior Protocol Engineer to become a vital member of one of our client’s innovative teams. This is a fantastic opportunity for individuals looking to advance their careers in a cutting-edge environment.In this role, you will spearhead the design and development of state-of-the-art consensus models, construct secure and scalable Ethereum Virtual Machine (EVM) systems, and provide mentorship to a top-tier engineering team.Key ResponsibilitiesLead the creation of EVM-based architectures and blockchain frameworks.Design and implement advanced Proof of Stake and other consensus algorithms.Develop and enhance smart contract platforms and associated tools.Work collaboratively with leadership to establish technical strategies and roadmaps.Guide and mentor engineers, promoting a culture of innovation and excellence.Drive enhancements in decentralization and scalability.