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December 17, 2025

Senior .Net Tech Lead

Senior • Remote

$120 - $130/

Warsaw, Poland

Role Description:

We are seeking an experienced Senior Software Engineer/Tech Lead to join a team developing scalable, secure, and efficient web applications and SaaS solutions for international clients. We are looking for someone with a strong Microsoft ecosystem technology background and experience leading development teams in a dynamic project environment.


Responsibilities:


  • Serve as a technical leader, ensuring high-quality solutions and consistent architecture.

  • Design, develop, and maintain enterprise-class web applications and SaaS platforms.

  • Collaborate with product, analytics, and QA teams using Agile/Scrum methodologies.

  • Create and maintain RESTful APIs and web services.

  • Write unit tests using NUnit, Moq, and Jest.

  • Participate in code reviews, architectural discussions, and technical planning.

  • Use Git and Azure DevOps to manage code and project progress.


Requirements:


  • Minimum 6 years of software development experience.

  • Proven experience building and maintaining large-scale web applications and SaaS solutions.

  • Proficient in C#, .NET Core, and .NET Framework.

  • Good understanding of REST architecture and WebAPI design.

  • Experience writing unit tests (NUnit, Moq, Jest).

  • Ability to work with distributed code repositories (Git).

  • Experience in teamwork and implementing best engineering practices.