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ELEKS Logo ELEKS · IT - Software Development

Middle .NET Developer

Poland; Croatia · Job Posted January 04, 2026
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Job Description

Our client, a leading German company in the biopharma industry, is developing a next-generation software orchestrator to manage the automated sample processing workflow.

Job Responsibility

  • Implement and maintain features in C#/.NET using event-driven and async programming patterns
  • Develop code through TDD/TLD approaches – tests are a first-class deliverable
  • Create and maintain unit/integration tests using xUnit + FluentAssertions
  • Ensure safe concurrency (events, tasks, locking) and stable behavior under load
  • Participate in code reviews, architectural discussions, and contribute to continuous improvement
  • Collaborate closely within a cross-functional team and help stabilize complex logic flows

Requirements

  • Solid C#/.NET, async/await, events, multithreading basics
  • Experience with TDD/TLD, unit testing principles, mocking, test isolation
  • Competence with xUnit, FluentAssertions, and CI-driven test automation
  • Clean code mindset, SOLID, DI, modular/hexagonal design concepts
  • Understanding of event-driven design and structured error handling
  • At least an Upper-Intermediate level of English

What we offer

  • Close cooperation with a customer
  • Challenging tasks
  • Competence development
  • Team of professionals
  • Dynamic environment with low level of bureaucracy
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