At Jacobs, were challenging today to reinvent tomorrow by solving the worlds most critical problems for thriving cities, resilient environments, mission‑critical outcomes, operational advancement, scientific discovery and cutting‑edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact

We are looking for a Full‑stack Developer to join the Digital & Data Hub in the Jacobs Krakow office and support the stabilization and further development of an acquired application. You will work across both the frontend and backend, helping resolve critical issues, participate in rebuilding the frontend into TypeScript, and support the introduction of new features and architectural improvements.

This role is ideal for someone with solid hands‑on development skills who wants to grow while contributing to impactful platform modernization.

Responsibilities

• Support stabilization efforts by diagnosing and resolving defects, performance issues, and architectural bottlenecks
• Participate in the redesign and refactor of existing components, including modernizing monolithic services
• Contribute to rebuilding the frontend into a more maintainable and scalable TypeScript‑based structure
• Implement backend logic using GCP Cloud Run and Cloud Functions
• Work with Firestore (NoSQL) to build efficient and reliable data workflows
• Collaborate closely with DevOps and architecture teams on platform improvements
• Work with modern development practices such as code reviews, unit testing, and CI/CD
• Ensure compliance with security and authentication standards (GCP‑based authentication already implemented)

Requirements

• Min. 3 years of professional experience as a Software Developer
• Solid knowledge of backend development using Node.js
• Experience with cloud‑based development (preferably GCP, AWS or Azure also acceptable)
• Understanding of APIs, REST principles, asynchronous programming, and cloud‑native patterns
• Experience working with NoSQL databases (Firestore is a plus)
• Familiarity with serverless/cloud runtimes (Cloud Functions, Cloud Run, Lambda, etc.)
• Willingness to work with legacy code and contribute to modernization
• Strong problem‑solving skills and ownership mindset

We offer

• Rewarding employment - full-time employment with a salary that matches your qualifications
• Hybrid work model - enjoy the flexibility of working mostly from home
• Flexible hours - start your day anytime between 7:30 and 10:00 AM
• Comprehensive benefits, including Lux Med medical care, psychological support, life insurance, My Benefit cafeteria system, Multisport card co‑financing, and a car/bike park sharing system
• Global projects - engage in exciting international projects
• Inclusive networks - join our diverse employee networks like Womens Network, OneWorld, PRISM, Careers Network, Green Team, SpeakUp, Collectively, and more
• Continuous learning - participate in our Graduate Development Program, Learners’ Community, and self‑learning platforms
• Language courses - enhance your skills with courses in English, German, and Polish

We know that if we are inclusive, we’re more connected, and we’re more creative. We accept people for who they are. Find out more about life at Jacobs.

As a Disability Confident employer, we will interview all disabled applicants who meet the criteria for a vacancy.

If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team recruitmentpoland@jacobs.com

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support.