New offer - be the first one to apply!

November 4, 2026

Mid Software Developer (React / .NET)

Mid • On-site

Kalety, Poland

Quick Facts

Role: Mid Software Developer (React / .NET)

Work model: Hybrid (2–3 days per week on-site; remaining days can be remote)

Collaboration: B2B or Employment Contract

Description

You will develop and evolve business solutions that support real operational and business processes. You’ll build the frontend in React and the backend in C# / ASP.NET Core, including REST API services, CI/CD work, code quality, stability, and automated testing.

Responsibilities

  • Develop the frontend based on React
  • Create and evolve backend services and REST API endpoints in C# / ASP.NET Core
  • Work with CI/CD processes and tools
  • Ensure software quality, stability, and maintainability
  • Participate in code review and work with Git repositories
  • Write and maintain unit and integration tests
  • Collaborate as a team using Kanban
  • Support solution architecture design
  • Analyze user needs and translate them into technical solutions
  • Work with IT and business stakeholders

Requirements

  • Minimum 2 years of commercial experience building web or business applications
  • Very strong practical knowledge of CI/CD and software delivery
  • Experience with code review and maintaining code quality
  • Comfortable working with Git and code repositories
  • Experience building and integrating REST APIs
  • SQL knowledge and relational databases
  • Experience writing automated tests
  • Knowledge of good practices for software development and maintenance
  • Ability to independently analyze problems and propose solutions
  • Ability to collaborate with technical and business stakeholders
  • English proficiency to work comfortably with technical documentation

Benefits

  • Real influence on product/system development (functionality, architecture, roadmap)
  • Direct contact with system users
  • Full application context: React UI, API, and C# / ASP.NET Core backend
  • Stable business environment and long-term market activity
  • Small team, short decision path, and low bureaucracy
  • Flexible cooperation model: B2B or employment contract
  • Hybrid schedule: 2–3 days on-site per week, remaining days can be remote
  • Commute co-financing
  • Benefit MultiSport card with co-financing

Similar jobs you might like

Unlock Full Resume Report