Senior developer (.Net/C#, WinForms/WPF)


Are you a senior developer (C#/WinForms/WPF) looking for a place with few formalities and a lightweight and hands-on development process? Do you want to focus your work time more on creating a world-leading software product, where you get much influence on the solutions in a flat company structure? Does it sound interesting with an international environment at an economically solid company with HQ and development office in Lyngby/Copenhagen as well as offices in Dubai, Houston and Kuala Lumpur?

Calsep is market-leading in the area of phase equilibrium software for the global oil and gas industry. We are looking for a new developer that can help develop and maintain our world-class software, while also securing a transition into future technologies, including innovative cloud products. We are currently 4 developers in the team.

The position:

We need an experienced developer who knows Windows desktop development really well and has the ability to work with complex systems. We expect you to:

  • Implement using Industry standard best practices to further improve architecture, code quality, performance, scalability and maintainability of our systems.
  • Create Proofof-concepts (POCs) for new and innovative ideas/requirements to determine their feasibility.
  • Collaborate with project team members as well as colleagues across the organization to define and implement application features
  • Modernize and optimize the applications Technology stack

 Required skills:

 We are looking for a profile with more or all of the following skills:

  • A minimum of 7 years of solid experience in building Desktop/Windows GUI applications using C#/.Net/ WinForms/WPF Technologies.
  • Strong experience with DevExpress (or other leading user controlsets) for WinForms/WPF
  • Proven skills for developing Frontend C# Business logic using OOP concepts
  • 5+ years of experience in .NET development using Visual Studio
  • Generally strong programming knowledge, fluency in C# and a solid understanding of OOP concepts
  • Master degree in Computer Science or relevant Engineering discipline

It will be considered a plus if you have:

  • Exposure to MVP and MVVM frameworks.
  • Flair for designing UI, icons and logos and other image resources
  • Exposure to design patterns, unit testing, source code control, and agile development methods.
  • Experience with TFVC and Git

Personal skills

  • Your code is easy to read and understand.  
  • You understand complex concepts and are able to communicate them to both your peers as well as nondevelopers
  • you’re self-driven as well as a team-player and get things done.
  • You master the art of simplicity.
  • You promote continuous improvement to the way of working, for you and the company.

The Job offers you to:

  • Work in high-quality mindset on a world-leading software product
  • Develop premium user experiences for our customers
  • Excellent opportunities to continuously develop your skills as a developer
  • Have the chance to work together with highly skilled experts within their field.
  • Make your mark and directly see your contribution to the business.
  • A flat company structure where you can focus all your work on developing and architecture
  • Work in an international environment
  • Competitive salary


Recruitment is handled by iHeadHunt and you can contact Malthe Andersen on +45 60 88 21 26 if you wish more information about the role. Send your CV today to with the tag “Fullstack Developer - Calsep”. No cover letter needed.

Gem job

iHeadHunt ApS
Publiceret: 27. februar 2020


Location Lyngby