Senior Fullstack Developer (.NET, Angular, Microservices) (m/f/x)

We are looking for an experienced Senior Full Stack Developer to join a long-term project for a European Union organization based in Warsaw , operating within the defence and security sector . This role combines hands-on software development, technical leadership, and architectural responsibilities across modern frontend and backend technologies, including Angular, TypeScript, RxJS, NgRx, .NET, C#, Node.js, NestJS, and microservices/micro frontends architectures. As a senior member of the development team, you will contribute throughout the complete software development lifecycle, support architectural decisions, mentor technical teams, and help deliver scalable, secure, and high-quality enterprise solutions in a highly international environment.

Knowledge and Skills: Has gone at least 1 time through the complete lifecycle of the solution . Expert in developing enterprise level software systems in specified technology domain. Knows UML and can design applications in UML .

Proficient in designing and developing: data layer, business logic layer and UI layer. Worked in Scrum developments. Is capable for leading technical teams.

Holds ability to document effectively technical solutions. Presents problem solving skills. Specific

Demonstrates practical experience in software development as Senior Full-Stack Developer or Lead Developer . Demonstrates practical experience in design and development of micro fronted or microservices solutions . Possesses outstanding expe