Home / Jobs / Middle Strong/ Senior Full-Stack (.NET+ExtJS/ React) DeveloperPoland, UkraineSoftware Engineering,.NET.
Posted:
February 18, 2026
Location:
Poland, Poland, Poland

Job Description

ELEKS is looking for a Middle Strong/ Senior Full-Stack (.NET+ExtJS/ React) Developer in Ukraine and Poland.

ABOUT PROJECT


Our client is a leading global professional reinsurance company from the USA, providing a broad range of risk, retirement, and health solutions. The company is one of the largest insurance brokers worldwide.

The project is ongoing and involves active development, feature implementation, PoCs, refinements, and a small portion of production support (up to ~10%).


REQUIREMENTS

  • 4+ years of experience in software development

  • Strong experience with .NET Framework 4.8 and .NET 8

  • Web technologies: ExtJS (or strong JavaScript experience as an alternative) and React

  • Strong knowledge of MS SQL

  • Experience with Entity Framework,

  • Nice to have: Azure, Quartz

  • At least Upper-Intermediate level of English

  • Solid understanding of e...

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    Job Overview

    Job Type: Full-time
    Location: Poland, Poland
    Posted: February 18, 2026
    Deadline: March 30, 2026