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Senior Software Engineer - C++ Expert in Linux & Cloud Security

SentinelOne

Full-time|On-site|Slovakia

Our MissionAt SentinelOne, we are committed to empowering those who secure our digital future. As AI transforms the landscape of business operations and innovation, our responsibility to safeguard these environments becomes increasingly vital. By joining SentinelOne, your contributions will help protect global enterprises, critical infrastructure, and the te…

Apr 7, 2026

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Senior Windows Low-Level C++ Engineer - Endpoint Security

SentinelOne

Full-time|On-site|Slovakia

Our PurposeAt SentinelOne, we are driven by a clear purpose: to empower those who safeguard our future. As AI transforms how organizations operate and innovate, the need to protect them is more essential than ever. Joining SentinelOne means your contributions help secure global enterprises, critical infrastructure, and the technologies that will shape tomorrow. If you are inspired by meaningful challenges and want your impact to be significant, measurable, and global, you will find your purpose here.About UsSentinelOne is at the forefront of AI and cybersecurity, pioneering a revolutionary operating model for digital protection. Our AI-native platform integrates security across endpoints, cloud, identity, data, and AI systems to deliver autonomous detection and response with clarity and speed. By harnessing real-time analytics and intelligent automation, we cut through the noise, simplify complexity, and enable security teams to focus on what truly matters.Our teams are builders, problem-solvers, and innovators dedicated to shaping the future of security. If you are excited to tackle challenging problems alongside talented, mission-driven individuals, we invite you to help us create a safer future for everyone.What Are We Looking For?We are seeking individuals who are intensely curious and dedicated to lifelong learning. As AI influences every aspect of our organization, we equip every team member, regardless of their role or level, with the skills to navigate AI tools and concepts. Those who thrive in our environment actively pursue innovative solutions, experiment thoughtfully, and apply their knowledge to achieve improved outcomes.As a Windows Low-Level Engineer specializing in Endpoint Security, you will be responsible for designing and developing sophisticated security functionalities for SentinelOne’s Windows endpoint protection platform, covering both user-mode and kernel-mode environments. You will construct and enhance critical components, including anti-tampering mechanisms, network sensors, and agent infrastructure, while addressing complex performance and stability challenges at scale. By delving into Windows internals and troubleshooting deep system issues, you will collaborate with distributed engineering teams to deliver impactful security solutions that protect millions of devices globally.

Mar 31, 2026

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Cloud Engineer for T-cloud Public Security

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Deutsche Telekom IT Solutions Slovakia is hiring a Cloud Engineer to help build and improve public security systems on the T-cloud platform. This role is located in Košice. Main responsibilities Develop and refine cloud-based solutions designed for public security use cases Enhance the safety and efficiency of services running in the T-cloud environment Use cloud technology skills to support and advance public security services Location This position is based in Košice, Slovakia.

Apr 22, 2026

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Security Engineer for T-Cloud Public

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice - mestská časť Západ

Deutsche Telekom IT Solutions Slovakia is hiring a Security Engineer for T-Cloud Public in Košice - mestská časť Západ. The main focus is on safeguarding cloud infrastructure and supporting the security of data and systems. Main responsibilities Collaborate with teams to design and implement security protocols for T-Cloud Public. Support efforts to keep data confidential and maintain its integrity within the cloud environment. Take part in continuous improvements to cloud security practices. Location This position is based in Košice - mestská časť Západ.

Apr 27, 2026

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Senior Staff Security Infrastructure Engineer

Bloomreach

Full-time|€5K/mo - €5K/mo|On-site|Slovakia

At Bloomreach, we are pioneering the world’s leading agentic platform for personalization. Our mission is to transform how businesses interact with their customers by developing and deploying AI agents that tailor the entire customer journey.We are bringing autonomous search into the mainstream, enhancing product discovery to be more intuitive and conversational for customers while boosting profitability for businesses.Our vision is to make conversational shopping a reality, providing every shopper with personalized guidance and product expertise—accessible on demand at every stage of their journey.We are shaping the future of autonomous marketing, streamlining workflows and allowing marketers to focus on the creative, strategic, and customer-centric tasks they were meant to tackle.This innovation is powered by the intelligence of a single AI engine—Loomi AI—ensuring that personalization is not only autonomous but also consistent. From retail to financial services, hospitality to gaming, companies leverage Bloomreach to achieve greater growth and foster lasting loyalty. We proudly support more than 1,400 global brands, including American Eagle, Sonepar, and Pandora.The Senior Staff Security Infrastructure Engineer will be responsible for managing current and target-state data architectures and reporting. This role involves designing, implementing, and monitoring security controls for cloud infrastructure (AWS/GCP), deploying and securing SIEM and other security tools, identifying and resolving infrastructure and web vulnerabilities, leading incident triage and collaborating with external researchers, and mentoring junior team members.

Feb 11, 2026

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Software Engineer - SDK Integration (C++, Rust, Android)

Innovatrics

Full-time|Hybrid|Bratislava, Bratislava Region, Slovakia

Why This Opportunity Is ExcitingAt Innovatrics, we specialize in developing cutting-edge biometric technologies that facilitate secure onboarding, border control, elections, and digital identity solutions in over 80 countries. As a Software Engineer focused on SDK Integration, you will play a pivotal role in enhancing our embedded and mobile biometric solutions by aligning our technical capabilities with the needs of our clients.In your initial months, you will:Dive deep into our technologies and products to fully grasp the SDKs, components, and various use cases we support.Engage directly with our SDKs and platforms, primarily developed in C++ and Rust, with API bindings for Kotlin, .NET, and Python.Gain insights into the functionality, inputs, and outputs of our SDKs and platforms to facilitate their integration into customer solutions.Develop SDKs optimized for Embedded Linux-based platforms.As you settle into your role, you will begin contributing by:Taking charge of designing and developing Biometric Toolkits utilized by hardware vendors and system integrators.Collaborating with engineers across teams to ensure our solutions maintain high performance, portability, and a modular architecture.Mentoring junior engineers while helping establish coding standards and best practices.Reviewing partner architectures and offering recommendations for optimal integration strategies.Leading debugging efforts, escalations, and root cause analyses across teams.Within your first year, you will have the chance to:Work with stakeholders, platform teams, and R&D departments to ensure alignment on product requirements.Influence the direction of solution roadmaps and strategies based on market needs and maintainability.Lead the creation of biometric toolkits and oversee the integration of biometric solutions for key OEM partners.What You Will Help BuildAs part of our compact team, your contributions will be implemented quickly. From day one, you will work on production features and influence global-scale projects in a matter of weeks.Your efforts will be crucial in:Developing and delivering high-performance biometric solutions tailored for resource-constrained platforms.Creating use-case specific, well-documented biometric toolkits to facilitate seamless integration by our customers, including hardware vendors and system integrators.Working Hours & LocationBratislava, with a hybrid home-office setup (3 days in-office, 2 days remote).About YouYou possess a robust background in embedded systems, AI model deployment, and technical communication. You relish tackling practical integration challenges and collaborating with customers, engineers, and sales teams.AI Builder MindsetWe anticipate engineers who not only bring technical expertise but also an innovative mindset to drive our solutions forward.

Apr 2, 2026

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Security Consultant for T-Cloud Public

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Role overview Deutsche Telekom IT Solutions Slovakia is hiring a Security Consultant for T-Cloud Public in Košice. The main focus is to improve the security of cloud-based services. What you will do Design and implement security strategies tailored to cloud environments Carry out vulnerability assessments to find and address potential risks Support compliance efforts with applicable industry standards

Apr 22, 2026

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Senior Software Developer for T-Cloud Public

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Role overview Deutsche Telekom IT Solutions Slovakia is hiring a Senior Software Developer for the T-Cloud Public team based in Košice. The position involves designing and developing cloud solutions that support clients in running their operations more efficiently and scaling their systems. What you will do Design and build cloud-based software for the T-Cloud Public platform Collaborate with colleagues across different teams to deliver solutions that align with client needs Apply technical expertise to projects with a focus on efficiency and scalability Location This role is based in Košice, Slovakia.

Apr 23, 2026

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Senior Software Engineer - Infrastructure at Cast AI

Cast AI

Full-time|On-site|Bulgaria; Croatia; Estonia; Greece; Hungary; Latvia; Lithuania; Poland; Romania; Slovakia; Slovenia; Ukraine

About Cast AI Cast AI builds an automation platform that combines artificial intelligence with Kubernetes infrastructure. The goal: improve performance, reliability, and efficiency in production environments by embedding autonomous decision-making into cloud systems. Manual management of Kubernetes and AI environments becomes less effective at scale. Cast AI addresses this by providing continuous automation that adapts infrastructure as conditions change. This approach helps reduce manual work, cuts costs, and boosts operational efficiency. More than 2,100 companies rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS. Global Team and Culture Headquartered in Miami, Cast AI operates across 34 countries, including Europe, North America, Latin America, and APAC. The team values diverse perspectives and intentionally builds a global workforce. Recent Milestone In January 2026, Cast AI reached unicorn status after a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group (a conglomerate valued at over $50 billion). The company’s valuation now exceeds $1 billion. Location Requirements This Senior Software Engineer - Infrastructure role is open to residents of Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

Apr 16, 2026

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Staff Security Engineer at bloomreach | Slovakia

Bloomreach

Full-time|€4K/mo - €4K/mo|On-site|Slovakia

At Bloomreach, we are pioneering the ultimate agentic platform for personalization. Our goal is to transform the way businesses engage with their customers by developing and implementing AI agents that personalize the entire customer journey.We are making autonomous search mainstream, enhancing product discovery to be more intuitive and conversational for consumers, while increasing profitability for businesses.Our vision for conversational shopping is becoming a reality, offering each shopper personalized guidance and product expertise — accessible on demand throughout every phase of their journey.We are shaping the future of autonomous marketing, streamlining workflows and allowing marketers to focus on the creative, strategic, and customer-centric tasks they were meant to pursue.All of this innovation is driven by the intelligence of our singular AI engine — Loomi AI — ensuring that personalization is not only autonomous but also consistent. From retail to financial services, hospitality to gaming, Bloomreach empowers over 1,400 global brands, including American Eagle, Sonepar, and Pandora, to achieve remarkable growth and foster lasting loyalty.The Staff Security Engineer plays a crucial role in overseeing current and future data architectures and reporting. This position involves designing, implementing, and monitoring security controls for cloud infrastructures (AWS/GCP); deploying, securing, configuring, and maintaining SIEM and other security tools; identifying, triaging, and remedying infrastructure and web vulnerabilities; leading incident response and engaging with external researchers; as well as mentoring junior team members.

Feb 11, 2026

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Senior Software Engineer at Cast AI | Europe

Cast AI

Full-time|On-site|Bulgaria; Croatia; Estonia; Greece; Hungary; Latvia; Lithuania; Poland; Romania; Slovakia; Slovenia; Ukraine

About Cast AI Cast AI builds an automation platform focused on streamlining cloud-native and AI infrastructure at scale. The platform integrates autonomous decision-making into Kubernetes and cloud environments, aiming to optimize performance, reliability, and efficiency in production. Over 2,100 companies, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS, use Cast AI to automate away manual tickets, alerts, and adjustments, replacing them with systems that adapt infrastructure dynamically. This shift helps organizations improve efficiency and reduce costs. Our Team and Culture Headquartered in Miami, Cast AI operates in 34 countries across Europe, North America, Latin America, and APAC. The company values diversity and inclusion, drawing on a wide range of perspectives to inform its work. In January 2026, Cast AI reached unicorn status following a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group. The company’s valuation now exceeds $1 billion. Location This Senior Software Engineer role is open to candidates based in Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, or Ukraine. Role Overview Senior Software Engineers at Cast AI contribute to core product features across several teams. Openings are available in the following areas: Workload Optimization: Automate resource management by dynamically adjusting allocations to lower costs and improve application reliability. Karpenter: Enhance integration between Karpenter and Cast AI, adding enterprise features to the open-source Kubernetes autoscaler and supporting large-scale deployments. Reporting: Build scalable solutions for data reporting and analysis, improving user experience and insights. Join Cast AI to help shape the future of autonomous infrastructure.

Apr 16, 2026

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Linux High Performance Computing (HPC) Server Engineer

Innovatrics

Full-time|On-site|Bratislava, Bratislava Region, Slovakia

We are seeking a skilled Linux HPC Server Engineer to join our dynamic team at Innovatrics. In this role, you will be responsible for managing and optimizing our high-performance computing systems, ensuring peak performance and reliability. You will work closely with our engineering team to implement innovative solutions that enhance our computational capabilities.

Apr 7, 2026

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Cloud Engineer for T-Cloud Public

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice - mestská časť Západ

Deutsche Telekom IT Solutions Slovakia seeks a Cloud Engineer for T-Cloud Public based in Košice - mestská časť Západ. This role centers on developing and supporting cloud infrastructure to help organizations use cloud technology effectively. Key responsibilities Collaborate with various teams to design and implement cloud-based solutions Maintain and enhance cloud infrastructure to ensure reliability and strong performance Location This position is located in Košice - mestská časť Západ.

Apr 27, 2026

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Senior Cloud Delivery Engineer

Goreel

Full-time|Remote|Remote — Bratislava, Bratislava Region, Slovakia

Join our dynamic team at Goreel, where we are dedicated to innovating and enhancing our suite of services that power our operational activities. Our focus spans the gaming platform, back-office solutions, and data analytics, all crafted by a talented group of seasoned professionals.As a Senior Cloud Delivery Engineer, you will integrate into our collaborative DevOps team, working closely with cross-functional units to refine and elevate our delivery workflows. Your expertise will be pivotal in managing databases and distributed systems, engaging in architectural discussions, and executing R&D initiatives to assess and optimize performance solutions.

Jan 7, 2026

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Senior DevOps Engineer - T-Cloud Public | €3,000 Sign-On Bonus

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Deutsche Telekom IT Solutions Slovakia seeks a Senior DevOps Engineer to join the T-Cloud Public team in Košice. This role centers on building and maintaining cloud-based solutions that help meet business goals and ensure system reliability. Key responsibilities Implement and manage cloud infrastructure for T-Cloud Public projects Monitor and optimize system performance Support the reliability and availability of cloud services Collaborate with colleagues to deliver solutions that align with both business and technical needs Location Based in Košice, Slovakia. Compensation €3,000 sign-on bonus

Apr 22, 2026

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Senior Network Engineer for Industrial AI Cloud

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Join Deutsche Telekom and NVIDIA in pioneering the world's first industrial AI cloud, specifically tailored for European manufacturers. This innovative AI factory, located in Germany, will harness the power of 10,000 GPUs through advanced NVIDIA DGX B200 systems and RTX Pro Servers, supported by Deutsche Telekom's secure and efficient infrastructure, including cutting-edge data centers, security measures, and AI solutions.Role Overview:We are on the lookout for a Senior Network Engineer for Industrial AI Cloud to design and automate a robust network platform that integrates network components such as switches, firewalls, routers, and border gateways. In this pivotal role, you will manage and provision the network stack, implement advanced monitoring solutions, and deploy additional components as required. Your collaborative efforts will span multiple teams, including Infrastructure and Platform, to enhance infrastructure services while adhering to ITIL processes.As a Senior Network Engineer, you will focus on automating configuration management, release management, and deployment activities tailored to customer needs. This role involves direct customer engagement to provide specialized solutions and consultancy. You’ll be utilizing proprietary technologies including InfiniBand, Cumulus OS, RoCE, UFM, FortiGate firewalls, and Cisco border gateways.Key Responsibilities:Operations Coordination: Collaborate with Data Center, IaaS & PaaS layers to support network lifecycle activities, including installations, upgrades, and documentation management.Switch & Firewall Management: Provision and maintain InfiniBand switches in compliance with ITIL Standards.Automation Development: Create and optimize automation scripts for orchestration throughout the project lifecycle.OS & Firmware Maintenance: Manage network environments, applying necessary patches and firmware upgrades.Monitoring & Observability: Implement monitoring solutions for enhanced observability.ITIL Process Improvement: Enhance incident, problem, and change management workflows; maintain comprehensive documentation.Cross-Team Collaboration: Partner with Platform Engineers and AI solution teams for seamless deployments.High-Speed Fabric Management: Manage a unified network fabric using both InfiniBand and Ethernet/RoCE technologies.Out-of-Band Management: Administer a dedicated 1 Gbps Ethernet and serial console for OOB management.

Dec 8, 2025

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Senior Cyber Security Defender Engineer with German

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Role OverviewWe are seeking a highly skilled Senior Cyber Security Defender Engineer with proficiency in German to join our dynamic team. In this pivotal role, you will be responsible for the design, implementation, and management of advanced security technologies, software deployment, and data center operations. Your expertise will be essential in ensuring the high availability, security, and optimal performance of our IT infrastructure.About the TeamBecome part of the Operational Services GmbH team within Deutsche Telekom Systems Solutions Slovakia. We provide exceptional opportunities for talented IT professionals in Slovakia. Our team is recognized as a leading ICT service provider in the German market and serves as a critical pillar for the digitization of mid-sized businesses. With nearly 1,000 qualified employees, we develop and manage cutting-edge IT systems for our clients while ensuring long-term support and the continuity of critical business operations.If you are eager to collaborate with an English and German-speaking team that prioritizes innovation and teamwork, we would love to hear from you! Key ResponsibilitiesManage and troubleshoot security solutions in data center and hybrid/cloud environments.Address incident, change, and problem tickets related to security systems.Deploy, configure, and maintain Microsoft Defender, Sophos, and other security tools.Continuously enhance the reliability, performance, and security of IT services.Collaborate with internal teams, clients, and vendors on implementation projects.Assist with onboarding, training, and documentation for security tools and practices. Scope of WorkWork independently or in a team to implement and maintain security solutions.Oversee Microsoft Defender (Endpoint, Cloud, Identity, Cloud Apps, O365).Manage Sophos Intercept X (EDR/XDR) and Sophos SG/XG Firewalls.Install, configure, and maintain security tools and monitoring systems.Ensure implementation of security policies and best practices across all infrastructure layers (servers, networks, cloud, endpoints).Strong foundational knowledge is essential; some training may be provided as needed.

Jan 21, 2026

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Senior Data Engineer - Google Cloud (GCP) at Deutsche Telekom IT Solutions Slovakia

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Juh

Join our innovative team as a Senior Data Engineer specializing in Google Cloud Platform (GCP). In this pivotal role, you'll be responsible for designing and implementing robust data solutions that drive business insights and support data-driven decision-making. You will leverage your expertise in cloud technologies to enhance our data architecture, ensuring scalability and performance while collaborating with cross-functional teams to deliver high-quality data products.

Mar 26, 2026

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Senior Software Engineer at Filevine | Bratislava

Filevine

Contract|On-site|Bratislava

Join Filevine, a pioneering Legal AI firm, as we redefine the landscape of legal operations through our innovative platform. Our Legal Operating Intelligence System (LOIS) integrates data, documents, workflows, and collaboration into a cohesive environment where legal professionals can work efficiently and effectively.LOIS is designed to shift legal processes from reactive to proactive, enhancing clarity and insight into every matter. It intelligently analyzes data to uncover insights, streamline complexities, and empower our users with the confidence to excel. As a rapidly growing company recognized by Deloitte and Inc. for our innovation, we invite you to be part of our exceptional team of innovators.Role Overview:As a Senior Software Engineer, you will be instrumental in advancing our legal technology capabilities. Your responsibilities will include developing web applications and core backend services that integrate with cutting-edge AI models such as GPT, Claude, and Gemini.At Filevine, you will tackle real-world challenges faced by our customers, take ownership of features from concept to execution, and contribute to our scalable software development practices.

Jun 19, 2025

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Principal Technical Consultant – Expert Cloud Architect

Deutsche Telekom IT Solutions Slovakia

Full-time|On-site|Košice

Role OverviewThe Principal Cloud Consultant plays a pivotal role in shaping and implementing cloud strategies, creating migration roadmaps, and establishing comprehensive cloud governance frameworks. Your expertise will empower our global clientele to efficiently transition to public cloud solutions that align with their strategic objectives.Key ResponsibilitiesDevelop and define robust cloud strategies, migration roadmaps, and governance models.Guide our clients through the successful adoption of public cloud services to fulfill their strategic ambitions.Assist customers in navigating their cloud journey with AWS, Azure, or GCP by providing both technical and strategic insights to expedite their transformation process.Lead customer engagements from pre-sales through to project delivery, serving as the vital link between clients, sales teams, and technical project members.Facilitate workshops with customers to uncover key technology and business drivers and articulate technical concepts effectively.Collaborate with Product Managers to enhance our Cloud Adoption portfolio by infusing insights from customer projects and market trends.Provide advice on technology and strategic vision, establish cloud adoption and migration strategies, and ensure smooth hand-offs to architectural and migration teams.

Mar 3, 2026

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