Senior .NET Developer (.NET + React + React Native)

📍 Remote / Hybrid💰 Up to 170 PLN/h (B2B)🕒 Full-time

We are looking for an experienced Senior .NET Developer to join our project team and take part in building modern web and mobile applications. If you have strong expertise in .NET, React, and React Native and want to play a key role in shaping system architecture – we want to hear from you!

Requirements:

• Minimum 5 years of commercial experience in .NET (C#, .NET Core)

• Strong knowledge of React JS and experience with React Native

• Proven experience in designing web and mobile application architecture

• Good knowledge of design patterns, SOLID, DDD

• Experience writing unit and integration tests

• Hands-on experience in Agile/Scrum environments

• Communicative English (minimum B2)

• Ability to mentor and conduct code reviews

Your responsibilities:

• Designing and implementing new features for web and mobile applications

• Co-creating the system architecture and selecting technologies

• Integrating with external systems and APIs

• Conducting code reviews and ensuring high code quality

• Collaborating with the project team and clients

• Participating in CI/CD processes

• Mentoring and providing technical support to less experienced developers

Nice to have:

• Experience with microservices

• Familiarity with Azure or AWS cloud

We offer:

• Competitive rate up to 170 PLN/h (B2B)

• Long-term cooperation in a stable project

• Flexible working hours and remote-friendly approach

• Real influence on technology choices and architecture

• Working in a team of experienced professionals