.NET Developer

  •  Reference Number: 28579
  •  Posted: 17 August 2026
  •  Form of employment: Contract
  •  contract-type: B2B
  •  Apply by: 17 September 2026

Functieomschrijving

Location: 2 days per week in the office (Wrocław)
Availability: ASAP / within 1 month

About the Role:

We are looking for a .NET Developer to develop, test, maintain, and modernize business-critical software applications. In this role, you will participate in all stages of the software development lifecycle, including planning, design, implementation, deployment, testing, and maintenance. A key focus of the position will be the modernization of existing applications and their migration towards a microservices architecture.

Responsibilities:

  • Participate in all phases of the software development lifecycle, including planning, design, implementation, deployment, testing, and maintenance

  • Analyze business requirements and deliver software solutions tailored to business needs

  • Develop, maintain, and enhance applications using .NET and C#

  • Modernize and migrate existing systems towards a microservices architecture

  • Design and implement messaging and integration solutions using RabbitMQ and MassTransit

  • Support the migration of desktop applications from WinForms to WPF

  • Develop and maintain web applications using ASP.NET

  • Work with MSSQL databases, including development, optimization, and maintenance activities

  • Perform software testing and contribute to test automation initiatives

  • Collaborate with development teams using Azure DevOps and related development tools

  • Ensure code quality by applying SOLID principles and software engineering best practices


Requirements:

  • Experience with .NET and C#, including .NET Framework 4.8

  • Good understanding of SOLID principles

  • Experience with RabbitMQ and MassTransit

  • Experience working with Microsoft SQL Server (MSSQL)

  • Experience with WinForms and WPF

  • Experience with ASP.NET

  • Proficiency in Visual Studio

  • Experience with SQL Server Management Studio

  • Experience with Azure DevOps

  • Strong analytical and problem-solving skills

  • Ability to work across the full software development lifecycle


Nice to Have:

  • Experience with Azure services

  • Knowledge of YAML

  • Experience working with microservices architecture

  • Experience with application modernization and migration projects


What We Offer:

  • Multisport card

  • Private healthcare (Medicover)

  • Group life insurance

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Experis to światowy lider rekrutacji specjalistów i kadry zarządzającej w kluczowych obszarach IT. Z nami znajdziesz konkurencyjne oferty zatrudnienia oraz ciekawe projekty IT skierowane zarówno do ekspertów z wieloletnim doświadczeniem, jak i osób, które dopiero zaczynają swoją przygodę w branży IT.

jefferson Wells is Norway's largest consulting & recruitment company with over 800 consultants. We offer recruitment of managers and highly qualified consultants with expertise in IT. Among our customers, you will find over 90 percent of Norway's largest listed companies. Experis is part of ManpowerGroup and has been named one of the world's most ethical companies.
Wrocław, Dolnośląskie
The employment agency - Certificate No. 412