Mid Level Backend Engineer For Security Tools Team jobs in Warsaw – Browse 738 openings on RoboApply Jobs

Mid Level Backend Engineer For Security Tools Team jobs in Warsaw

Open roles matching “Mid Level Backend Engineer For Security Tools Team” with location signals for Warsaw. 738 active listings on RoboApply Jobs.

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companyNordsec logo
Full-time|On-site|Warsaw

Join our dynamic team at Nordsec as a Mid-Level Backend Engineer, specializing in developing robust security tools. In this role, you will design, implement, and maintain backend services that safeguard our digital assets and enhance user experiences.Your responsibilities will include collaborating with cross-functional teams, ensuring optimal system performance, and contributing to the architecture of our security infrastructure. We are looking for innovative thinkers who are passionate about coding and eager to tackle challenging problems.

Apr 2, 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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company
Full-time|On-site|Warsaw

Join the NordPass Team to Revolutionize Password Security!At NordPass, we strive to make online password management effortless and secure. With over 7 million users and 10,000+ companies relying on us, we are committed to providing a premium password manager that safeguards credentials, cards, and sensitive information.Your Contribution: Play a pivotal role in enhancing digital security for millions by developing innovative and secure login solutions.Key ResponsibilitiesCollaborate with cross-functional teams to integrate and optimize microservices across NordSecurity's product ecosystem, ensuring a seamless user experience.Prioritize the delivery of high-quality, scalable, and secure code.Engage in key technical and architectural decisions, refining development processes and shaping the strategic direction of our products.Demonstrate strong ownership over product development, maintenance, and quality assurance.Facilitate effective communication and collaboration among engineering, product, and design teams.Essential QualificationsExtensive experience with PHP (3+ years).Hands-on experience with AI tools to enhance engineering (e.g., code generation, test creation, performance optimization, and debugging), demonstrating accountability for outcomes.Proficient in system design, with a clear understanding of design patterns and their applications.Solid grasp of Object-Oriented Programming (OOP), asynchronous programming, and design patterns.A genuine passion for architecture and technology; we want to hear from those who can create scalable and robust code.Familiarity with core CI/CD principles, unit testing, and integration testing.Preferred QualificationsKnowledge of cryptography.

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

Join Our Team at NordLayer!At NordLayer, we are on a mission to deliver scalable cybersecurity solutions tailored for modern businesses.Our innovative platform empowers teams to operate efficiently without the burden of security concerns. Trusted by over 11,000 global companies, NordLayer seamlessly integrates with any technology stack to safeguard users across borders.Your Role: As a DevOps Engineer, you will play a crucial role in enhancing and automating our infrastructure and CI/CD processes. Collaborating with Senior Engineers and cross-functional teams, you will implement best practices in DevOps, support robust and scalable cloud solutions, and ensure smooth software delivery. This is a fantastic opportunity for professional growth in a dynamic environment while contributing to our infrastructure automation initiatives.Key Responsibilities:Implement and maintain Infrastructure as Code (IaC) using Terraform.Develop, manage, and optimize Terraform modules.Oversee and enhance AWS Cloud infrastructure, ensuring performance, scalability, and availability.Assist in establishing and maintaining 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 uphold DevOps workflows, processes, and system configurations.

Apr 12, 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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companyTalan logo
Full-time|On-site|Warsaw

Role overview Talan is seeking a Mid-Level Backend Spark Developer to join the team in Warsaw. This role centers on building and maintaining backend systems, with Apache Spark as a primary tool. The work directly supports ongoing projects and plays a key part in meeting team objectives. What you will do Develop backend solutions that use Spark as a central technology Collaborate with colleagues from various disciplines to deliver dependable software Support project progress by helping meet milestones and upholding technical standards Location This position is based in Warsaw.

Apr 23, 2026
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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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companyWaymo LLC logo
Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

Waymo is at the forefront of autonomous driving technology, striving to become the world’s most trusted driver. Originating from the Google Self-Driving Car Project in 2009, our focus has been on developing the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and prevent traffic-related fatalities. The Waymo Driver is the driving force behind Waymo’s fully autonomous ride-hailing service, having completed over ten million rider-only trips while autonomously covering more than 100 million miles on public roads and tens of billions in simulated environments across 15+ U.S. states.The Waymo Mapping team is dedicated to creating a high-resolution map of the world to facilitate safe autonomous driving. Our innovative mapping process combines automated and manual techniques, along with robust infrastructure for data storage, processing, and distribution. We collaborate closely with various teams within Waymo that utilize map data.Your Responsibilities:Develop and enhance essential labeling tools and systems that drive mapping initiatives at Waymo.Partner with Mapping Operations, UX, and engineering teams to deliver outstanding internal tools.Collaborate with machine learning teams to integrate advanced models into our workflow, significantly increasing scalability.Construct backend infrastructure for the effective storage and processing of diverse map data.Utilize Google's ecosystem to build, deploy, and scale backend services that manage extensive mapping data.Expand systems to map urban environments, supporting Waymo’s rapid growth into new and complex cities.Your Qualifications:Bachelor’s degree or equivalent practical experience.A minimum of 3 years of relevant industry experience.Proficiency in C++ and large-scale data processing.A proactive approach to owning problems end-to-end, tackling various facets of complex systems.A strong passion for software engineering excellence.Preferred Qualifications:Hands-on experience with geospatial data.

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

Join NordProtect and be a part of a pioneering identity theft protection service.As a key member of the Nord Security team, you will contribute to the development of an innovative platform that integrates dark web monitoring, credit tracking, and identity theft insurance into a single, powerful solution.Your contributions will be vital! You will empower individuals to safeguard their identities, identify threats proactively, and enhance their recovery capabilities.Welcome to NordProtect, your comprehensive shield against identity theft, financial fraud, and online scams. We deliver extensive monitoring, prompt threat detection, fast recovery, and dependable insurance, offering unmatched security and peace of mind for both individuals and businesses. The real champions of this advanced solution are cybersecurity and insurance professionals, and we invite you to join us in this mission to protect digital identities.Key ResponsibilitiesDesign and create microservices tailored to the daily needs of users requiring identity theft protection, ensuring the utmost security while managing a significant volume of personal identifiable information.Collaborate with cross-functional teams to guarantee the smooth integration and functionality of microservices throughout Nord Security's product suite, ensuring a cohesive and seamless user experience.Provide mentorship and technical direction to team members, fostering the growth of best practices within the engineering team.Play a crucial role in shaping the team's vision and contributing towards long-term objectives.Participate in research and development efforts to discover and implement advanced technologies as needed.Encourage effective communication and collaboration among team members and with other engineering, product, and design professionals across various teams.Demonstrate a collaborative mindset by actively engaging in discussions, challenging ideas, and embracing redesigns that contribute to collective success.Core QualificationsProven experience with backend technologies, particularly with Go.Strong understanding of system design principles, including knowledge of appropriate design patterns and their application.Familiarity with Agile methodologies and continuous integration practices.Ability to communicate technical concepts effectively to varied audiences.Experience in building scalable and resilient systems.

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

Join the forefront of online privacy and security.At Nord Security, we are pioneers in developing cutting-edge tools like Threat Protection Pro and the NordLynx protocol, ensuring users regain control over their online security and privacy.Your Role: As part of the Nord Checkout team, you will contribute to building and maintaining essential services that enhance the user purchasing experience. Your work will ensure a secure, efficient, and enjoyable process for millions of users worldwide.Main Responsibilities:Design and implement highly scalable, resilient, and secure microservices.Write high-quality, tested, and maintainable code that performs well under load.Collaborate with cross-functional teams, including QA, DevOps, and security, to ensure seamless service delivery.Successfully deploy new features and technical fixes on schedule.Create comprehensive technical designs and maintain thorough documentation.Conduct research and development to solve complex challenges.Take ownership of projects from inception to completion.Embrace continuous professional development.

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

Join the forefront of digital security with the world's most advanced VPN.Are you a curious problem-solver eager to make a difference? Become part of the team that powers Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—innovative tools designed to restore privacy, security, and control to users everywhere.Your impact? Empower millions of users to reclaim their online security, privacy, and data.About Threat ProtectionIn an age of viruses, Trojans, worms, spyware, and other malware, ensuring online safety can be challenging. Our Threat Protection team is dedicated to solving these issues by developing robust software that safeguards our customers. You'll create scalable code capable of handling high volumes, security concerns, and complex architectures, all built from the ground up. If this sounds like the challenge you’ve been seeking, read on!Main ResponsibilitiesDesign and develop distributed microservices that shield millions from malware threats;Prioritize delivering high-quality code with a focus on scalability and security;Collaborate with a passionate team of developers to build and maintain our services using Golang;Take ownership of architecture, design, development, and deployment initiatives with respect and commitment.Core RequirementsExperience with distributed technologies and familiarity with NoSQL databases, particularly Cassandra or Kafka;Strong grasp of system design, with knowledge of applicable patterns;Passion for creating anti-virus solutions and enhancing online safety where your contributions will have a direct impact;Adept in backend architecture and technologies, willing to engage in discussions and share ideas; if you can deliver scalable and stable code, we want to connect with you;A collaborative spirit with a love for discussing, rethinking, and redesigning ideas that foster shared success within your team and the company.

Apr 12, 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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companyNordPass logo
Full-time|On-site|Warsaw

Join NordPass and revolutionize password security.At NordPass, we are committed to making logins safer and more straightforward for everyone. As a member of our dedicated team, you will contribute to developing a password manager that is trusted by over 7 million users and more than 10,000 organizations worldwide to protect their credentials, payment information, and sensitive data.Your Role: Play a vital role in helping millions secure their digital identities by designing smarter, safer login solutions.

Mar 19, 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|PLN 14.5K/yr - PLN 20.7K/yr|On-site|Warsaw

Join Our Innovative Team at NordLayer!At NordLayer, we are revolutionizing cybersecurity, ensuring that businesses can scale securely. Our toggle-ready platform empowers modern teams to operate efficiently without the burden of security concerns. Trusted by over 11,000 companies across the globe, NordLayer seamlessly integrates with any tech stack to provide comprehensive user protection worldwide.Your Role: Play a vital role in safeguarding businesses and advancing network security solutions for the future.Key Responsibilities:Design, develop, and maintain automated end-to-end testing frameworks for both API and UI.Collaborate with the Test Automation team to enhance a shared testing library.Identify, document, and work with the engineering team to troubleshoot software defects.Partner closely with product, engineering, and QA teams to ensure top-notch product quality.

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

Join Box Inc. as a Mid-Level Java Engineer and take part in building innovative solutions that streamline processes and enhance user experiences. You will collaborate with a team of talented developers, contributing to the design, development, and maintenance of high-quality software applications.We value creativity, teamwork, and a passion for technology. If you are eager to tackle challenging problems and develop your skills in a supportive environment, we would love to hear from you!

Apr 7, 2026
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companyMoss logo
Full-time|On-site|Warsaw

Join Moss, where we empower finance professionals to automate their daily tasks and make strategic decisions.Our unique culture is driven by impact and growth, with every team member dedicated to learning and excelling. Recognized by Sifted’s Rising 100 and LinkedIn's Top Startups, we are committed to propelling your career and achieving lasting success together.We are looking for talented **Mid-Level Backend Engineers (f/m/d)** to join various teams in our Warsaw office, including:Sales EnablementPricing & BillingAcquisitionSpend ManagementActivation & Card SpendIn this role, you will collaborate closely with designers, product managers, and frontend engineers to bring innovative ideas to life. Your goal will be to ensure that our product simplifies and automates everyday tasks through intuitive and efficient tools.

Apr 29, 2025
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companyNordsec logo
Full-time|On-site|Warsaw

Join our team as a Backend Engineer and contribute to our innovative solutions at NordProtect. We are looking for talented individuals with a passion for technology and a strong background in backend development, specifically using Go. In this role, you will collaborate with cross-functional teams to design, implement, and maintain robust and scalable backend systems.

Apr 13, 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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companyNordsec logo
Full-time|On-site|Warsaw

Join our dynamic team at Nord Checkout as a Backend Engineer, where you will play a vital role in developing and optimizing our backend systems using Go. This position is perfect for individuals who are passionate about backend development and are eager to contribute to innovative payment solutions.

Mar 23, 2026

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