About this role
Senior Full-Stack .NET Developer
About the Offer
We are currently looking for a Senior Full-Stack .NET Developer to join the team of our client, a European Union institution based in Warsaw . You will design, develop and support enterprise web applications built on .NET and React , from translating business requirements into technical solutions through to deployment, release management and 3rd-line production support. For this role, Optiveum is the recruitment partner, and the cooperation agreement will be signed directly with our contracting partner.
Key Details:
- Rate: up to 32 EUR/h net (B2B)
- Work Model: on-site/near-site in Warsaw, full-time (40 h/week)
- Location: Warsaw
- Important: EU citizenship is required for this role
Responsibilities:
- Designing, developing and maintaining enterprise web applications
- Building and supporting solutions in .NET (C#, ASP.NET Core) and React (TypeScript)
- Translating business requirements into technical solutions
- Taking part in testing, deployment, release management and production support
- Optimising application performance, security and quality
- Producing technical documentation and providing 3rd-line support
Requirements:
- EU citizenship
- 6+ years of IT experience, including 3+ years in a similar development role
- Strong experience with .NET 8 / .NET Core, C# and ASP.NET Core
- React and TypeScript on the front end
- Entity Framework and SQL Server
- Azure DevOps pipelines
- Experience with OpenShift / containers
- Knowledge of SAML 2.0 / Entra ID authentication
- Agile/Scrum experience
- An advanced software development certification
- English at least B2 and fluent Polish