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November 3, 2026

Senior .NET Developer

Senior • Remote

Lublin, LU, Poland

Quick Facts

  • Role: Senior .NET Developer

  • Focus: Public-sector IT projects

Description

You will design, develop, and maintain C# and .NET Core applications, create solutions using EF Core, Dapper, and the CQRS pattern, and build and develop Web APIs. You will work with Microsoft SQL Server and Azure services (including Azure Cosmos DB), containerize applications with Docker, and collaborate on the frontend layer using Vue.js with WCAG 2.0 accessibility standards.

Responsibilities

  • Design, develop, and maintain C# and .NET Core applications

  • Implement solutions using EF Core, Dapper, and CQRS

  • Design and develop Web APIs

  • Work with relational databases (Microsoft SQL Server)

  • Develop solutions using Microsoft Azure services, including Azure Cosmos DB

  • Containerize applications using Docker

  • Collaborate on frontend development using Vue.js and WCAG 2.0

Requirements

  • Minimum 6 years of C# programming experience

  • Practical knowledge of .NET Core, Visual Studio, EF Core, Dapper, and CQRS

  • Good knowledge of Microsoft SQL Server and Web API creation principles

  • Minimum 1 year of experience creating Web APIs

  • Practical knowledge of Microsoft Azure services, including Azure Cosmos DB

  • Knowledge of MassTransit and Docker

  • Knowledge of Vue.js and WCAG 2.0

  • Microsoft Azure Data Engineer Associate (DP-203) or Microsoft Azure Developer Associate (DP-204) certification

  • Fluent Polish at least C1

Benefits

  • Non-salary benefits: Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, shopping vouchers

  • Flexibility: flexible working hours and remote/hybrid options

  • Career development: access to training and certifications; collaboration with global IT partners (Microsoft, AWS, Snowflake, Salesforce)

  • Engaging community: team building events, hackathons, CSR initiatives

  • Company traditions: annual integration event in Mazury

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