Senior Security Engineer Detection Engineering jobs in Warsaw – Browse 812 openings on RoboApply Jobs

Senior Security Engineer Detection Engineering jobs in Warsaw

Open roles matching “Senior Security Engineer Detection Engineering” with location signals for Warsaw. 812 active listings on RoboApply Jobs.

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company
Full-time|On-site|Warsaw

About the Role Nord Security is looking for a Mid to Senior Security Engineer to join the WebSec Team in Warsaw. This position focuses on strengthening security protocols and building solutions that protect web applications. What You Will Do Identify vulnerabilities in web applications and services Develop and implement security measures to protect users Work closely with other security professionals to improve overall security posture Contribute to the ongoing improvement of security processes and tools Who You’ll Work With Collaborate with a skilled team of security engineers and specialists, sharing knowledge and approaches to keep Nord Security’s web platforms safe.

Apr 15, 2026
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companycomplexio logo
Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

Join our dynamic Product Security team as a Senior Platform Security Engineer, where your expertise will be crucial in safeguarding our platform that supports multiple products and handles sensitive, high-value information. With our operations expanding, we seek two professionals to strengthen our security efforts.Your role will involve hands-on engineering, where you will design, build, and deploy robust security and privacy controls. This is not about merely defining policies; you will actively contribute to the security architecture of our systems.Your responsibilities will include enhancing supply-chain security through SAST, SCA, container scanning, and CI/CD hardening. Expect a varied role that will challenge you across multiple domains without confining you to a single specialty.What Success Looks Like:Within 90 days, you will have implemented significant, production-level security enhancements.You will take ownership of components of the AuthN/AuthZ model and its execution.You will develop a comprehensive understanding of our data flows and associated privacy risks.Establish yourself as a trusted advisor across teams, able to confidently voice concerns and provide rationale.Effectively reduce risk through practical measures rather than superficial security actions.Your Work Style:This role offers a high degree of autonomy, encouraging you to identify and address issues independently.You will collaborate closely with engineers from different teams, fostering a culture of teamwork.Engaging in constructive disagreements is encouraged, with decisions rooted in data and threat modeling.You will have the authority to block releases on security or privacy grounds when necessary, following clear escalation paths.Proactively addressing problems, even beyond your immediate area, is expected.

Feb 5, 2026
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company
Full-time|On-site|Warsaw

Join NordLayer and be part of a cybersecurity revolution!We are creating a scalable cybersecurity platform tailored for modern teams, eliminating security concerns while enhancing productivity. With trust from over 11,000 global companies, NordLayer seamlessly integrates into any tech stack, offering robust protection across borders.Your Role: Play a crucial part in empowering businesses with cutting-edge network security solutions.Key ResponsibilitiesEnhance our codebase by crafting clean, high-quality TypeScript code, backed by rigorous testing.Provide mentorship and technical guidance to frontend developers through insightful code reviews and implementation strategies.Collaborate with backend engineers to define API contracts and ensure smooth integration between frontend and backend services.Work alongside product managers and designers to transform product requirements and UX designs into viable technical solutions.Uphold high engineering standards by promoting best practices in code quality, testing, and maintainability.Assist the team in delivering features within a Scrum framework by effectively breaking down tasks, identifying risks early, and contributing to accurate estimations.Essential Qualifications5+ years of experience in developing and maintaining modern frontend applications using React and TypeScript.Proven experience in designing frontend architectures and establishing scalable components and state management patterns.Strong knowledge of frontend performance optimization and web application best practices.Experience working with REST APIs and collaborating effectively with backend teams.Familiarity with frontend testing frameworks such as Jest, Testing Library, Cypress, or Playwright.Experience leading technical discussions within a distributed team environment.Bonus QualificationsHands-on experience in building or contributing to open-source projects.

Apr 12, 2026
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company
Full-time|Hybrid|Warsaw

Join Saily, where we simplify staying connected while traveling — no roaming fees, no plastic SIM cards, just high-speed, secure mobile data accessible in over 200 destinations. With millions of satisfied customers and countless travelers using Saily at any time, we are dedicated to enhancing their experience.At Saily, we cultivate an AI-driven Product Engineering culture that empowers our engineers to:Own the product development lifecycle from concept to deployment.Leverage AI Agents to automate repetitive coding tasks, maximizing their productivity.Continuously identify and implement improvements within our processes.Embrace curiosity and encourage knowledge sharing.Focus on delivering a seamless, connected experience for our customers.We prioritize growth, contribution, and impactful work over comfort and hierarchy. At Saily, we provide our talented team members with the autonomy and resources they need to excel.Key ResponsibilitiesEnhance our product by developing and maintaining innovative features.Create functionalities that support multi-dimensional personalization, A/B testing, and data analytics.Maintain a robust and high-quality codebase.Continuously seek opportunities to improve code quality and system performance.Provide mentorship on development best practices and offer technical guidance to peers.Contribute to the overall vision and long-term goals of the team.Conduct research and development as needed.Collaborate within a cross-functional team to ensure clear communication among all members.Work alongside engineering, product, and design experts from other teams.Note: This position requires in-office attendance three times a week.

Apr 12, 2026
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company
Full-time|On-site|Warsaw

Saily, part of Nord Security, is looking for a Senior Android Engineer with strong Kotlin skills to help shape and improve our mobile applications. This role centers on building new features and refining app performance for a better user experience. What you will do Design and implement features for Android applications using Kotlin Work closely with cross-functional teams to deliver high-quality solutions Troubleshoot and resolve technical issues as they arise Maintain high coding standards throughout the development process Requirements Extensive experience in Android development Proficiency with Kotlin Strong problem-solving skills and attention to detail Comfort working collaboratively with diverse teams This position is based in Warsaw and offers the chance to work on challenging projects in a collaborative setting.

Apr 29, 2026
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company
Full-time|PLN 20.7K/mo - PLN 26.8K/mo|On-site|Warsaw

Nord Security’s B2B group develops cybersecurity products that help organizations safeguard their data and daily operations. The team combines expertise from product development, engineering, sales, marketing, and data to deliver security solutions used by businesses worldwide. Role overview As a Senior Automation QA Engineer on the Apps Team in Warsaw, this position focuses on strengthening the quality of Nord Security’s products for a global client base. The work directly supports enterprises in protecting their people, systems, and information. What you will do Build a test automation framework from the ground up. Design and maintain automated testing suites that cover multiple platforms. Identify, document, and track software defects, collaborating with developers to resolve them. Work closely with product managers, developers, and other QA professionals to ensure high product quality. Requirements Experience creating and maintaining native testing solutions. Proficiency in JavaScript and TypeScript. Strong understanding of native application architecture. Advanced skills with Appium and related automation tools. Ability to use AI coding tools responsibly, ensuring code quality and sound system design. Keen attention to detail. Initiative and a sense of ownership, especially when launching new projects. Clear communication skills, both written and spoken. Compensation Gross monthly salary: 20,700 - 26,800 PLN Benefits Collaborate with international experts to develop cybersecurity tools used by millions. Access to ongoing learning and professional growth in a supportive environment.

Apr 21, 2026
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company
Full-time|On-site|Warsaw

Join the forefront of online security technology with the world’s leading VPN provider!Are you a passionate problem-solver eager to make impactful contributions? Become a key player in the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—tools designed to restore privacy, security, and user control.Your role? Empower millions to reclaim their online security, privacy, and data integrity.As a Senior Backend Engineer on our Notification Center Team, you’ll be vital in designing and maintaining the microservices that facilitate seamless in-app notification delivery. We take pride in being the backbone of numerous features that depend on these notifications for smooth functionality. Our collaborative spirit drives us to work closely with other teams at Nord to pave the way for a scalable future.Ready to tackle the challenges of scalability, code quality, and service stability? Join our team of skilled engineers dedicated to technical excellence and help shape the future of NordVPN and its associated products!

Apr 12, 2026
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company
Full-time|On-site|Warsaw

Join NordLayer: Pioneering Cybersecurity SolutionsAt NordLayer, we focus on crafting scalable cybersecurity solutions tailored for modern businesses. Our toggle-ready platform empowers teams to excel without the burden of security concerns. With over 11,000 global enterprises relying on our services, NordLayer seamlessly integrates into any tech infrastructure, safeguarding users across various borders.Your Role: As a Senior DevOps Engineer, you will play an integral part in enhancing and automating our infrastructure and CI/CD processes. Collaborating with seasoned engineers and cross-functional teams, you will implement best practices in DevOps, support scalable cloud solutions, and ensure efficient software delivery. This is a unique opportunity to thrive in a fast-paced environment while contributing to vital infrastructure automation and enhancement initiatives.Key Responsibilities:Implement and maintain Infrastructure as Code (IaC) using Terraform.Develop, manage, and optimize Terraform modules.Oversee and optimize AWS Cloud infrastructure, ensuring robust performance, scalability, and availability.Assist in the implementation and maintenance of monitoring and logging systems (e.g., ELK, Grafana, Thruk).Provide technical support for infrastructure, CI/CD pipelines, and deployment processes.Troubleshoot and resolve infrastructure-related issues to ensure seamless operations.Document and maintain DevOps workflows, processes, and system configurations.

Apr 12, 2026
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companyCapital logo
Full-time|Remote|Warsaw, Mazowieckie, Poland

Capital, a global trading platform headquartered in Warsaw, focuses on technology-driven solutions and a user-centered experience. As the company expands, it seeks professionals who can help reinforce its technical foundation. Role overview The Network Security Engineer takes on a central role in safeguarding Capital’s infrastructure and network. This position involves building, maintaining, and improving security systems that support the safety and reliability of the platform for users around the world. Main responsibilities Develop and maintain monitoring systems for network and infrastructure Automate security processes to boost operational efficiency Support ongoing improvements to the company’s security framework What Capital offers Work with recognized products and advanced technology Join a globally respected team Opportunities to make a meaningful impact on security operations

Apr 27, 2026
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company
Full-time|On-site|Warsaw

Join the forefront of digital privacy with the world’s leading VPN!Are you a passionate problem-solver who thrives on innovation? Become a vital member of the team that developed Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—empowering users with enhanced privacy, security, and control over their online presence.Your contribution? Enable millions of users to regain control of their online security, privacy, and data.The Low-Level Server Side Team is at the helm of delivering VPN server software that serves millions of users worldwide.

Apr 13, 2026
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company
Full-time|On-site|Warsaw

Join Nord Security and innovate the future of online safety.At Nord Security, we empower users and businesses to reclaim their online privacy and security. Our diverse range of solutions—from VPNs and password managers to threat intelligence and eSIMs—are designed to address complex security challenges, earning the trust of millions around the globe.As a Senior Software Engineer, you'll play a pivotal role in enhancing our User Control Panel, ensuring users have a seamless and secure experience.Key ResponsibilitiesDesign and enhance a sophisticated User Control Panel to foster user trust and engagement, driving sustainable growth.Implement new features and improve user flows within the account management portal, including subscriptions, billing, and security options.Maintain a high-quality, scalable front-end codebase using modern best practices.Continuously enhance code quality, performance, and user experience.Write and uphold unit and integration tests alongside feature development.Contribute to the component library and design system standards.Engage in code reviews to uphold engineering excellence.Collaborate with backend engineers to define API contracts and handle errors effectively.Work with QA engineers to guarantee feature reliability and document workflows.Debug and resolve issues throughout the frontend stack, including UI rendering and state management.Advocate for best engineering practices and contribute to improving development processes.Conduct research and development activities to support new initiatives and make informed technical decisions.Mentor team members and provide technical guidance on best practices.Shape the team's technical vision and contribute to long-term goals.Essential Qualifications4+ years of experience in JavaScript and TypeScript programming.2+ years of hands-on experience with React framework.In-depth understanding of web development principles, testing methodologies, and performance optimization techniques.Proficiency in modern front-end development practices and tools.Strong problem-solving skills and attention to detail.

Apr 13, 2026
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company
Full-time|On-site|Warsaw

Join Nord Security in Shaping a Safer Cyber Future!At Nord Security, we empower individuals and businesses to reclaim their online security, privacy, and data. Our innovative solutions range from VPN services to password management, threat intelligence, and travel eSIMs, all designed to address complex challenges and earn the trust of millions across the globe.In this role, you will play a vital part in helping people take ownership of their online lives.Main ResponsibilitiesDesign, develop, and maintain secure infrastructure and tools that facilitate agile software development and automated releases.Document DevOps processes and establish standards to guide operations and maintenance.Ensure secure designs for platforms, infrastructure, and delivery mechanisms.Automate security controls across cloud environments, enhancing policy enforcement and container security while minimizing manual efforts.Collaborate with Security and Platform teams to bolster security measures.Identify and automate manual processes for increased efficiency.Mentor fellow engineers, fostering a robust technical security culture and establishing a strong Web Security team across our product offerings.Lead initiatives for improving cloud security posture using CSPM tools, focusing on automation and remediation workflows.Implement supply-chain security controls and Kubernetes security guardrails.Enable and manage cloud-native security controls across CI/CD pipelines and Kubernetes environments.

Apr 12, 2026
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companyBox, Inc. logo
Full-time|On-site|Warsaw, Poland

About BoxBox (NYSE:BOX) is at the forefront of Intelligent Content Management, empowering businesses to enhance collaboration, oversee the complete content lifecycle, secure essential information, and revolutionize workflows through enterprise AI. Founded in 2005, Box simplifies operations for renowned global organizations like AstraZeneca, JLL, Morgan Stanley, and Nationwide. Our headquarters is located in Redwood City, CA, with additional offices spanning the United States, Europe, and Asia.Joining Box means you will play a pivotal role in advancing our platform. Content is the backbone of everyday operations, encompassing contracts, invoices, employee records, financial documents, product specifications, marketing materials, and more. Our mission is to infuse intelligence into content management and empower our clients to revolutionize workflows throughout their organizations. With the synergy of AI and enterprise content, there is a remarkable opportunity to reshape collaborative efforts, and at Box, you will be at the forefront of this evolution.Why Your Expertise is EssentialAt Box, we are redefining the collaborative landscape. Security is fundamental to our vision. We are expanding our Product & Platform Security Engineering team in Poland to work closely with our Assurance & Architecture Engineering teams based in the US. As a Staff Security Engineer, you will collaborate with a high-impact engineering team in Warsaw, focusing on scaling security measures and integrating AI into our security protocols across our platform and product stack.This position offers the chance to influence strategic direction and deliver tangible outcomes that safeguard millions of users.Your ResponsibilitiesContribute to a strategic roadmap that enhances Box’s security capabilities across various platforms and products.Develop and iterate on minimum viable products (MVPs) for security automation, including supply chain security, SDLC controls, and developer-centric guardrails.Collaborate with the Assurance & Architecture Team and cross-functional teams (Product, Platform, Cloud, SRE, Developer Experience) to integrate security into workflows and tools.Lead initiatives focused on automation and innovative security techniques.

Mar 13, 2026
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company
Full-time|On-site|Warsaw

Join Saily, where we revolutionize connectivity for travelers by eliminating roaming fees and plastic SIM cards, offering seamless, high-speed mobile data in over 200 destinations. With millions of satisfied customers and countless travelers engaging with Saily at any moment, our mission is clear.We cultivate an AI-native Product Engineering culture that empowers our engineers to be builders, taking ownership of customer challenges from concept to deployment. AI agents assist in coding and automating repetitive tasks, enhancing engineers' productivity. We believe in constant improvement, where every team member is encouraged to propose enhancements and implement innovative solutions.Curiosity and knowledge sharing are vital to us, ensuring that our primary focus remains on delivering a comfortable, connected, and hassle-free experience for our customers.At Saily, we prioritize growth over comfort, contributions over hierarchy, and impact over process. We empower talented individuals with the context, autonomy, and AI tools necessary to excel in their roles.

Apr 12, 2026
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company
Full-time|On-site|Warsaw

Join Saily, where we are revolutionizing mobile connectivity while you travel with our service that eliminates roaming fees and the need for plastic SIM cards, providing seamless, secure mobile data in over 200 destinations worldwide. With millions of customers and countless travelers engaged with Saily at any time, we are committed to delivering the best mobile experience.Our AI-native Product Engineering culture is designed for innovation:The Engineer takes ownership, managing projects from concept through to production.AI Agents support engineers by handling coding and repetitive tasks, enhancing productivity.Every team member is encouraged to suggest improvements, fostering a culture of constant enhancement.We prioritize curiosity, learning, and sharing knowledge.The comfort and connectivity of our customers is always our primary focus.At Saily, we emphasize growth over comfort, contribution over hierarchy, and impact over process, providing our talented team with the autonomy and AI tools necessary to excel in their roles.

Apr 12, 2026
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company
Full-time|On-site|Warsaw

At NordPass, we are dedicated to making password security effortless.We believe that logins should be both safer and simpler. Join the innovative team behind NordPass— a leading password manager relied upon by over 7 million users and more than 10,000 global enterprises to protect their credentials, cards, and sensitive information.Your impact? You will be instrumental in helping millions secure their digital lives by developing smarter and safer login solutions.Main ResponsibilitiesDesign, develop, and take ownership of security-focused backend services (including breach detection, email masking, and related tools) with a commitment to high quality, performance, and accuracy.Utilize AI-assisted workflows on a daily basis (code generation, test scaffolding, debugging, performance optimization) while continuously evaluating new tools to enhance the team's productivity.Contribute to the establishment of shared AI practices within the squad: reviewing patterns, creating prompt libraries, and setting guardrails to ensure AI-generated code meets the same standards as hand-written code.Engage in system design and architectural decision-making, advocating for solutions that are secure, scalable, and maintainable.Collaborate across functions with Frontend, Android, iOS, and Backend engineers to deliver comprehensive features across all platforms.Assume full responsibility for your creations, from design to production, ensuring uptime, reliability, and code excellence.

Apr 12, 2026
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companyDocplanner logo
Full-time|Remote|Warsaw

Welcome to the positive side of technology! You might recognize us by our previous name: Znany Lekarz. It all began over a decade ago when we posed a crucial question: is anyone in healthcare genuinely considering the needs of patients? We took action, empowering patients with the ability to leave and read reviews about their healthcare experiences. Simultaneously, we equipped doctors with innovative tools to streamline booking management, enabling them to focus on what truly matters: patient care. Today, we invite you to join us in our mission to humanize the healthcare experience.Docplanner: A Global LeaderWe proudly operate in 13 countries, with over 90 million patients relying on our services every month. More than 300,000 specialists trust our platform, backed by leading venture capital firms like Point Nine Capital, Goldman Sachs Asset Management, and One Peak Partners. Despite employing over 2,500 individuals worldwide, we maintain the innovative spirit of a startup that we began with over a decade ago.Docplanner Tech: Shaping the FutureAt Docplanner Tech, we are a diverse team of over 400 professionals in Engineering, Data, and Product teams, dedicated to creating our product for all our locations. Many team members have been with us for over five years, and we always welcome new colleagues with warmth and enthusiasm.While we could share more about ourselves, we encourage you to check our Glassdoor reviews to hear firsthand experiences. If you want to understand what it's like to be your true self at work, watch this video.Why Join Us?It's fulfilling to share with family and friends how your work contributes to making the world a better place. You’ll rest easy knowing that your efforts matter and that your skills resonate with your values.Our goal is to enhance the healthcare experience, and this journey begins with you being authentically yourself. We believe that embracing the diversity of human experiences leads to a better healthcare journey for everyone. We don’t just acknowledge our differences; we celebrate them. We encourage you to bring your whole self to work, including the choice to work remotely, as we are fully remote-friendly.

Apr 10, 2026
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company
Full-time|On-site|Warsaw

Join the forefront of digital security with Nord Security!As a part of our innovative team, you'll contribute to the development of cutting-edge tools like Threat Protection Pro and the NordLynx protocol, ensuring that millions regain control over their online privacy and security.Your Role: As a Senior Software Engineer, you will design and maintain services that enhance our Threat Intelligence capabilities.Main Responsibilities:Design, code, and maintain data curation and ingestion services for the Threat Intelligence team.Develop and implement architectural solutions for distributed computing pipelines and microservices.Participate actively in code reviews and knowledge sharing to uphold high technical standards.Create new services to ensure the availability of quality data feeds.Maintain coding standards and ensure your code is maintainable, readable, and secure.Encourage innovation and develop ideas that enhance our cybersecurity products.Provide technical leadership and mentorship to team members.

Apr 12, 2026
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company
Full-time|On-site|Warsaw

Join the Vanguard of VPN Technology!At NordVPN, we are at the forefront of providing cutting-edge virtual private network solutions, offering more than just security. If you're a proactive innovator who enjoys tackling complex problems, we invite you to be part of our team developing Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—empowering users with enhanced privacy, security, and control.Your Contribution: Enable millions of users to reclaim their online security, privacy, and data.As a Senior Site Reliability Engineer, you will ensure content accessibility across our worldwide edge network. Your primary responsibility will be to guarantee that traffic reaches our users swiftly, reliably, and securely, no matter where they are located.You will navigate the realms of networking, load balancing, and traffic shaping. When issues arise—be it slowness, inaccessibility, or erratic behavior at the protocol layer—you will be the one to diagnose and resolve them.Key Responsibilities:Ensure seamless content accessibility across a globally distributed edge infrastructure.Design, operate, and enhance load balancing and traffic shaping systems at scale.Troubleshoot connection, latency, and accessibility issues end-to-end.Manage HTTP traffic flow from client to edge to origin and back.Investigate and rectify website and service reachability problems.Work across protocol layers to diagnose issues in depth.Core Qualifications:Proficient in load balancing and traffic shaping techniques—architecture, algorithms, health checks, and failover mechanisms.Experience with NGINX and/or HAProxy—configuration, tuning, and debugging in high-traffic environments.Solid understanding of networking fundamentals, including DNS, routing, firewalls, and packet analysis.Fluency in the OSI model—comfortable working across layers 3 to 7, with knowledge of TCP internals, SSL/TLS handshake, and termination.Experience with SaltStack.Linux administration skills.Proficiency in Python for automation, tooling, and scripting.Ability to troubleshoot network and application layer issues in large-scale production environments.

Apr 12, 2026
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companynordsec logo
Full-time|On-site|Warsaw

Role Overview The WebSec Team at nordsec is hiring a Mid to Senior Security Engineer in Warsaw. This position focuses on strengthening the security of web applications and protecting sensitive data. What You Will Do Work with colleagues from different departments to design and implement security solutions for web applications. Safeguard digital assets by identifying and addressing vulnerabilities. Help ensure data integrity and confidentiality for users and the company. Impact Your work will help maintain user trust and keep digital systems secure, supporting nordsec’s commitment to high industry standards in cybersecurity.

Apr 14, 2026

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