Senior C# .NET Engineer - Agile Backend Architect (Kraków)

Jas Gujral; Kraków; On-site; PLN 180,000 - 260,000; Full time

Job summary

Jas Gujral client in Kraków is seeking a senior C# .NET Software Engineer with 5+ years of hands-on experience developing robust applications in an Agile environment.

You will work on back-end services using C#, .NET Core, ASP.NET Web API, and ensure code quality with TDD, SOLID principles, and clean coding practices. Polish language is a plus; daily rate is negotiable.

The ideal candidate is self-driven, collaborative, and capable of delivering under tight timelines within cross-functional teams.

Qualifications

• Senior-level knowledge of C# and .NET Core (5+ years).
• Experience with ASP.NET (Web API).
• Solid understanding of OOP, SOLID, and clean code.
• Experience with unit tests and TDD approach.
• Git and version control experience.
• Coding and debugging in Visual Studio.
• Ability to work in an Agile environment.
• Strong communication skills.
• Self-driven and able to work independently.
• Self-organized and team-oriented.

Responsibilities

• Develop back-end services using C#/.NET in an Agile setting.
• Ensure code quality with tests and SOLID design.
• Collaborate with cross-functional teams to deliver features.
• Debug, optimize and tune performance of applications.

Skills

C#

.NET Core

ASP.NET

OOP SOLID

Unit Testing

Git

Visual Studio

Agile

Communication

Self-driven

Self-organized

Tools

Open XML SDK

DevOps

Docker

Snowflake

SQL

Python

HTML/CSS/JS

Job description

Jas Gujral client in Kraków is seeking a senior C# .NET Software Engineer with 5+ years of hands-on experience developing robust applications in an Agile environment.

You will work on back-end services using C#, .NET Core, ASP.NET Web API, and ensure code quality with TDD, SOLID principles, and clean coding practices. Polish language is a plus; daily rate is negotiable.

The ideal candidate is self-driven, collaborative, and capable of delivering under tight timelines within cross-functional teams.