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 Today

YOUR RESPONSIBILITIES

• Design, 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 experience

• 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, and dependency scanning vulnerabilities

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 – Hybrid work model

• 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

• Access to professional certifications (Google, ISTQB, etc.)

• Access to industry events, Knowledge Sharing Program, and Referral Program

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

We also offer cooperation based on a B2B or Contract of mandate (UZ).