Senior .NET Fullstack Developer at OPTIVEUM sp. z o.o.

Company: OPTIVEUM sp. z o.o.
Location: Remote / Warsaw, Poland
Employment type: Full-time
Posted: 2026-10-05

About the role

Senior .NET Fullstack Developer . About the role: . We are Optiveum , and we are currently looking for a Senior .NET Fullstack Developer to join the team of our client—a global, research-driven organization. In this setup, Optiveum acts as the recruitment and contracting party, meaning you will sign the B2B cooperation agreement directly with us. Key Details: . Location: 100% Remote (Based in Poland / Warsaw). Rate: Up to 36 EUR/h. Mode of work: Full-time (40 hours/week). Language requirement: English (Fluent). What you will be doing: . Developing, maintaining, and improving business-critical full-stack applications. . Modernizing legacy applications and migrating solutions to current versions of .NET. . Working seamlessly across all application layers, including UI, backend services, APIs, and data sources. .…

Apply on OPTIVEUM sp. z o.o.'s official careers page: https://career.optiveum.com/jobs/8497988-senior-net-fullstack-developer