Senior Fullstack .NET Developer

We are looking for an experienced Senior / MID Fullstack .NET Developer for one of our clients. You will work on system integration projects and provide support for integration solutions. The project team includes a Technical Lead, Software Architect, QA Manager, and other Software Developers.

Location: 100% Remote (Working hours: 9:00–17:00 CET)

Client: US-based company with a branch in Warsaw

Polish language required

Contract type: B2B

Rate: 150–160 PLN/h + VAT

Responsibilities:

• Collaborating on business and technical requirements

• Maintaining task status in Azure DevOps

• Supporting the Software Architect in technical design

• Assisting in project planning (scope and effort estimation)

• Monitoring and reporting the status of assigned tasks

• Developing code according to established standards and guidelines

• Conducting code reviews

• Writing unit tests

• Debugging and bug fixing

Must-have:

• Proficiency in English and Polish (C1 level)- must have !

• 6+ years of experience as a C#/.NET Developer

• Strong experience with REST APIs

• Solid knowledge of Microsoft Azure stack

• Understanding of Onion Architecture, Domain-Driven Design, and Test-Driven Development

• Ability to read and create technical diagrams

• General IT knowledge (infrastructure, security)

• Experience with integration projects (API development and consumption, SOA, event-driven architecture)

• Knowledge of OAuth 2.0

• Familiarity with Azure Durable Functions

• Experience with JavaScript frameworks (React.js or Angular)

• Understanding of software and system testing principles

Interested? Don’t hesitate—apply now and join us!

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