Fullstack Developer

WHO ARE WE?WE ARE A WORLD LEADER IN ENGINEERING AND IT SERVICES.At ALTEN, we see our specialists as architects – today’s designers of tomorrow’s world. As a leader in Engineering and IT Services, we support companies in their technological and sustainable transformation.OVER 57,400 EMPLOYEES IN 30+ COUNTRIES, TO SUPPORT MORE THAN 6,500 CLIENTS WORLDWIDE.We operate in all sectors: Aeronautics, Space, Defence, Security & Naval, Automotive, Rail & Mobility, Energy & Environment, Life Sciences & Health, Industrial Equipment & Electronics, Telecoms, Banking, Finance & Insurance, Retail, Services & Medias, Public Services & Government.We carry out complex and highly technical projects throughout the value chain of the most prestigious companies worldwide.Our motto: Building Tomorrow’s World TodayYOUR RESPONSIBILITIESDesign, develop, test, and maintain Java, Spring Boot, Angular, Kafka, SQL, Docker, and Kubernetes-based applications.Develop and enhance microservices-based solutions following clean code principles and best practices.Build and maintain REST APIs and integrations with internal and external systems.Actively participate in Agile/Scrum ceremonies (planning, refinement, reviews, retrospectives).Collaborate with Product Owners, Analysts, Architects, Security Specialists, and Operations teams to deliver business value.Analyze, troubleshoot, and resolve application defects, incidents, and production issues.Identify and remediate security vulnerabilities (SAST, container scanning, dependency scanning, penetration testing).Drive secure coding practices and improve the security posture of internet-facing applications.Support CI/CD processes using Git, Bitbucket, and Jenkins for efficient software delivery.Optimize application performance, scalability, resilience, and maintainability.Create and maintain technical documentation (solution designs, operational documentation, implementation guidelines).Contribute to continuous improvement initiatives in development, automation, quality assurance, and security.Work independently while collaborating effectively in a cross-functional Agile team.Leverage AI-powered tools (GitHub Copilot, Microsoft 365 Copilot) to improve development efficiency, code quality, and vulnerability remediation.Explore and adopt AI agents and intelligent automation solutions to enhance software delivery and business value.WHAT DO WE REQUIRE?Must-have:5+ years of Full Stack Java development experienceProficiency in Java, Spring Boot, Microservices, REST APIsExperience with Angular and Angular MaterialKnowledge of Kafka and SQL databasesFamiliarity with Docker, Kubernetes, Git, Bitbucket, Jenkins, and CI/CDExperience working in Agile/Scrum environmentsAbility to resolve SAST, container, and dependency scanning vulnerabilitiesNice-to-have:Experience in banking, cards, or payments domainFamiliarity with cloud platformsDevSecOps and vulnerability management experiencePerformance tuning and application monitoring skillsTechnical mentoring and coaching experienceWE OFFERFull-time employment contractLocation: Warsaw/Gdańsk – Hybrid work modelStable and long-term cooperationWell-defined career path at the European leader in engineering & IT consultingOpportunity to relocate and work in different ALTEN Polska branchesIntroduction and cooperation with a dedicated Competences ManagerAccess to professional certifications (Google, ISTQB, etc.)Access to industry events, Knowledge Sharing Program, and Referral ProgramBENEFITSMedicover medical careMedicover dental careMedicover Benefits platformMedicover Sport cardReferral ProgramLayette for a newborn employee’s childGroup life insurancePension schemeWe also offer cooperation based on a B2B or Contract of mandate (UZ).