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Optiveum

Senior Full-Stack .NET Developer

Optiveum Show all offers
32 EUR / hour
Warszawa
Expires Nov 22, 2026
10 days ago

In short

Senior Full-Stack .

NET Developer needed for an EU institution in Warsaw. Design, develop, and support .

NET/React web applications. Requires EU citizenship, 6+ years IT experience (3+ in dev), .

NET 8/Core, C#, ASP.

NET Core, React, TypeScript, EF, SQL Server, Azure DevOps, OpenShift/containers. On-site/near-site, full-time, up to 32 EUR/h net (B2B).

Keywords

.NET React TypeScript SQL Server Azure DevOps OpenShift SAML 2.0 Agile/Scrum

AI-written summary based on the listing content.

Senior Full-Stack .

NET Developer

About the OfferWe 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 citizenship6+ years of IT experience, including 3+ years in a similar development roleStrong experience with .

NET 8 / .

NET Core, C# and ASP.

NET Core

  • React and TypeScript on the front endEntity Framework and SQL Server
  • Azure DevOps pipelines
  • Experience with OpenShift / containers
  • Knowledge of SAML 2.0 / Entra ID authentication
  • Agile/Scrum experienceAn advanced software development certification
  • English at least B2 and fluent Polish
Published 2026-10-23
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