Cookies icon

This website uses cookies to ensure you get the best experience on our website.

Web Developer .NET/C# 

Location: Lublin, Kielce or Warsaw


  • Working in development teams to analyze requirements and create solutions
  • Coworking with the creative team as well as all other stakeholders to ensure that project objectives are met as expected
  • Implementing functionalities based on specification or front end development
  • Maintaining compliance with architectural principles specified in the project
  • Code refactoring and improving architecture 
  • Meeting deadlines
  • Actively proposing new web solutions and frameworks in accordance with project requirements 
  • Caring for the highest quality of code

If you possess these skills:

  • Experience in programming in C # .NET (also in non-commercial projects)
  • Good knowledge of ASP.NET MVC and ASP.NET Web API
  • Experience in: LINQ, Entity Framework, AutoMapper, Autofac, MS SQL, T-SQL
  • Knowledge of JavaScript, jQuery, AJAX
  • Familiarity with Visual Studio, Git ans Nuget
  • Understanding of OOP and SOLID
  • Practical knowledge of design patterns & the best practices
  • Experience in relational databases
  • Positive attitude
  • Good communication skills
  • Intermediate English skills (B1)

We can offer to you:

  • Work in an experienced team with the use of the best practices (SOLID, Clean code),
  • Work-life balance - possibility of flexible working hours and home office,
  • Casual start-up atmosphere (If you want to listen to music while coding or relax during table tennis round, feel free :)) 
  • No stiff structure, 
  • No dress code,
  • The best view from one of the highest viewpoints in the city, 
  • English classes with a native speaker and top class polish tutor during work hours, 
  • Chill room,
  • Company sponsored events, 
  • A transparent contract and comfortable employment model (you choose the type of contract), 
  • In the office to drink types of teacoffeeYerba mate chosen by you and teammates.

Nice to have:

  • Knowledge of the Umbraco CMS platform
  • Experience in programming in Xamarin platform
  • Basic knowledge of Angular or React
  • Experience in Cloud Technologies Azure, Visual Studio Online and Unit Testing

If you have the qualifications mentioned above and are interested in joining the team, send us your CV to

About JMMJ:

JMMJ has completed several IT projects across Europe and North America. The company was founded in 2008 and we are a Microsoft Certified Partner since 2009.