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Link Group is a Polish technology services company founded in Warsaw in 2016 that builds and supplies engineering teams to clients across Europe. Its model combines body leasing and managed teams with delivery of complete software, cloud and cybersecurity projects, drawing on a large bench of contractors rather than a fixed permanent staff. The company works heavily in financial services, telecommunications and public sector projects, and has built a specialisation in blockchain and distributed ledger engineering alongside more conventional cloud and application development work.

Senior Software Engineer - Back-end-first Full Stack .NET

We are looking for a Senior Software Engineer with a strong back-end-first full stack profile to join an Azure-hosted platform.

Your main focus will be backend development - APIs, business logic, integrations, data access and asynchronous processing - with the opportunity to contribute to the React / TypeScript frontend when needed.

You will work with .NET 9, C# 13, React 18, TypeScript, SQL Server, MongoDB, Redis, Azure Storage Queues, SignalR and Ocelot.

Requirements:

  • Strong production experience with .NET / C#
  • Experience with SQL Server or a similar relational database
  • Hands-on experience with APIs, integrations and asynchronous processing
  • Experience with Azure
  • Ability to contribute across backend and React / TypeScript
  • Experience owning features from design through production
  • Strong communication and collaboration skills

Nice to have: MongoDB, Redis, SignalR, Ocelot, regulated/finance/tax environments, or mentoring experience.

Tax technology experience is not required - you should be comfortable learning complex business rules and turning them into reliable software.

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