Fullstack Developer

Full Stack Java Developer – Cards Service Domain

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 Today

YOUR RESPONSIBILITIES

• Design, develop, test, and maintain Full Stack Java applications using Java, Spring Boot, Angular, Kafka, SQL, Docker, and Kubernetes.
• 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?

• 5+ years of Full Stack Java development experience and ability to test changes.
• Proficiency in Java, Spring Boot, Microservices, REST APIs.
• Experience with Angular and Angular Material.
• Knowledge of Kafka and SQL databases.
• Familiarity with Docker, Kubernetes, Git, Bitbucket, Jenkins, and CI/CD.
• Experience working in Agile/Scrum environments.
• Ability to resolve SAST, container scan, and security vulnerabilities.
• Understanding of secure coding and OWASP principles.
• Strong troubleshooting and problem-solving skills.
• English (B1+/B2 or higher).
• Basic knowledge of AI tools or willingness to explore.

NICE-TO-HAVE

• Experience in banking, cards, or payments domain.
• Familiarity with cloud platforms.
• DevSecOps and vulnerability management experience.
• Performance tuning and application monitoring skills.
• Technical mentoring and coaching experience.

WE OFFER

• Full-time employment contract
• Location – Warsaw/Gdańsk | Work model – Hybrid
• Stable and long-term cooperation
• Well-defined career path at the European leader in engineering & IT consulting
• Opportunity to relocate and work in different ALTEN Polska branches
• Introduction and cooperation with a dedicated Competences Manager

BENEFITS

• Medicover medical care
• Medicover dental care
• Medicover Benefits platform
• Medicover Sport card
• Referral Program
• Layette for a newborn employee’s child
• Group life insurance
• Pension scheme

ADDITIONAL OFFERS

• Cooperation based on B2B or Contract of Mandate (UZ)
• Access to professional certifications with technology partners (e.g., Google, ISTQB)
• Access to industry events
• Access to the Knowledge Sharing Program
• Access to the Referral Program