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(Senior) .NET Developer - Freelance

2 weeks, 2 days ago
Europe, Poland
Full-time
Senior
Backend Engineer
Software Development
Agile C# CI/CD Docker GCP Git PostgreSQL React REST API SQL Server TypeScript
Apply Now
Netguru

Netguru

Netguru: Europe's top digital consultancy, shaping revolutionary digital products for leading brands with expertise in software and mobile development.

Internet Software & Services
251-1K
Founded 2008
View All Jobs 29

Description

  • Develop and maintain backend services using C# and .NET 8+.
  • Build RESTful APIs with ASP.NET Core.
  • Create and support frontend functionality with React and TypeScript.
  • Integrate LLMs such as OpenAI, Claude, and Gemini into applications.
  • Apply AI frameworks such as Semantic Kernel, LangChain, or similar tools.
  • Work with SQL databases including SQL Server and PostgreSQL.
  • Use Git, Docker, and CI/CD pipelines in the delivery process.
  • Collaborate with cross-functional teams and communicate effectively throughout the project.
  • Contribute independently to project tasks within Agile and code review–driven processes.

Requirements

  • Strong proficiency in C# and .NET 8+.
  • Experience building RESTful APIs with ASP.NET Core.
  • Solid knowledge of React and TypeScript.
  • Experience with SQL databases, such as SQL Server or PostgreSQL.
  • Understanding of Clean Architecture, design patterns, and testing practices.
  • Hands-on experience integrating LLMs such as OpenAI, Claude, or Gemini into applications.
  • Experience with AI frameworks such as Semantic Kernel, LangChain, or similar.
  • Proficiency with Git, Docker, and CI/CD pipelines.
  • Experience working with Google Cloud Platform and/or other cloud platforms.
  • Strong problem-solving skills and ability to work independently.
  • Good communication skills and experience collaborating in cross-functional teams.
  • Polish language is a must-have.
  • English proficiency at C1 level.
  • Freelance assignment on a full-time B2B contract.
  • Availability to start in mid-July for a 3-month engagement with possible extension.
  • Remote work from within the European Union.

Benefits

  • 100% remote work.
  • Dev-friendly processes including Continuous Integration and code review.
  • Agile working methodology.
  • Projects across industries such as fintech, healthcare, insurance, and education.
  • Opportunity to work with a team of experts.
  • Continuous development of hard and soft skills.
  • Knowledge sharing sessions.
  • Access to an internal knowledge base.

Interested in this position?

Apply directly on the company website

Apply Now

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