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October 2, 2026

Full Stack Developer (.NET & React)

Mid • Remote

96 - 112 PLN/yr

Warsaw, Poland

Quick Facts

  • Role: Full Stack Developer (.NET & React)

  • Focus: End-to-end, cloud-native software development (backend + frontend)

  • Environment: Remote, collaborative engineering team

Description

Design and build scalable full-stack applications using .NET Core/ASP.NET Core and React, covering the full software development lifecycle. Develop and optimize REST and GraphQL APIs, create responsive and user-friendly interfaces, and contribute to deployment and continuous improvement. Use AI-powered development tools to accelerate coding, testing, debugging, and documentation.

Responsibilities

  • Design, develop, and maintain scalable full-stack applications with C#, .NET Core, ASP.NET Core, and React

  • Build and enhance REST and GraphQL APIs with high performance, security, and reliability

  • Develop responsive, user-friendly UI with strong usability and performance focus

  • Leverage AI-powered tools for design, implementation, testing, debugging, and documentation

  • Collaborate cross-functionally from concept through production and ongoing maintenance

  • Design and optimize data models using SQL and NoSQL databases

  • Contribute to cloud-native application development, deployment, and continuous improvement

  • Participate in code reviews, technical discussions, and architecture decisions

  • Troubleshoot complex issues, identify root causes, and implement scalable solutions

  • Take ownership of features and improve development processes and engineering best practices

Requirements

  • 3+ years of professional software development experience

  • Proficiency in C#, .NET Core, and ASP.NET Core

  • Hands-on React experience (Hooks, state management, modern frontend development)

  • Experience building and consuming REST and GraphQL APIs

  • Experience with SQL Server, PostgreSQL, MongoDB, or other relational/NoSQL databases

  • Understanding of asynchronous programming and distributed systems

  • Experience developing cloud-native SaaS or enterprise applications

  • Hands-on experience using AI-powered development tools (e.g., GitHub Copilot, Claude, or similar)

  • Responsive UI development knowledge and modern UX principles

  • Excellent problem-solving skills with proactive, ownership-driven mindset

  • Strong communication skills in English

  • Ability to work independently in a fully remote, collaborative environment

  • Bachelor’s/Master’s degree in Computer Science, Software Engineering, or related field (or equivalent practical experience)

Benefits

  • Opportunity to work on highly scalable, cloud-native applications used worldwide

  • End-to-end ownership across architecture, implementation, deployment, and continuous improvement

  • AI-assisted development to speed up coding, testing, debugging, and documentation

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