Medior Software Developer

Does programming in C# not hold any secrets for you? Become the backbone in one or our agile development teams as a Medior Software Developer! 

At Sigmax we develop software that makes the work of thousands of professionals easier and business processes more efficient every day. Our products can be found in the enforcement teams at local authorities, in public transport, but also in security firms and field service organisations. 

To be able to continue to deliver high quality software solutions and to grow further as a company, we are looking for a Medior Software Developer to strengthen one of our teams. Which one? Together with you we would like to find out which team suits you the best. 

Your job

At Sigmax we work in teams on various software products. As a Medior Software Developer, you are the backbone in one of our Agile development teams. APIs, security-first design, SQL, .NET, and programming in C#, it is all familiar territory for you. With your knowledge and experience, you help build a software product. You also actively think about solutions for complex problems that arise during development, and you come up with proposals for improving the software.  

You will work within a project and tender driven world. Your work is structured and planned, but in a dynamic environment. Internal developments are rapid and customer requirements change as well. This does not scare you. Change is an element that makes your work fun and that you can handle well.

Why you want to work at Sigmax

  • A good work-life balance is the foundation. We are a flexible employer and hybrid workforms are common (including home working allowance). What does your ideal working week look like?
  • Personal development is important to us. We like to support your development by facilitating training and coaching and offering you career development opportunities;
  • A team with a good mix of young talent and years of experience. Click here if you are curious about our working atmosphere.
  • It goes without saying that we offer an attractive package of working conditions; from salary to spectacular events.

What makes you unique

  • You preferably have a bachelor- or master’s degree or are able to work on that level; 
  • You have at least a couple of years of proven experience with complex issues in software development; 
  • You have extensive experience in working with C#, .NET tooling, SQL and other relational databases; 
  • Knowledge of non-relational databases is a plus; 
  • You are familiar with agile working methods; 
  • Analytical thinking and problem solving are some of your strongest skills; 
  • You are a hard worker and you follow the developments in your field closely. 

We are only interested in candidates who are already living in the Netherlands and have a work permit. 

About Sigmax

With 160+ Sigmax employees, we work from our beautiful base in Enschede. Here we create software for clients at both national and international level. Our portfolio includes major cities and leading public transport companies as well as well-known security firms and field service organisations. Working smarter and more efficiently with software, that is what it’s all about! 

Sigmax consists of 4 business units each with their own area of expertise. 

  • Law Enforcement; software for city councils 
  • Public Transport; software for public transport 
  • Field Service Solutions; software for field service organisations 
  • SequriX; software for security firms 

During a first meeting, we would like to tell you much more about the business units. In such a meeting we would also like to get to know you a bit better. Together we can determine which business unit might be a match


Is the vacancy really something for you? Send your motivation letter, resume and relevant personal data via the ‘apply now’ button to Yordi Zeijpveld (Team Recruitment) or call +31(0)53 480 3100 if you want to know more about the vacancy. By sending us your details, you agree to our conditions. Data will be treated confidentially and only used for recruitment and selection purposes. 

Please notice: 

  • Work location: Enschede (hybrid working is possible); 
  • Availability: Fulltime; 
  • We ask for proof of good behaviour (Verklaring Omtrent Gedrag – VOG – in the Netherlands).  
  • We are only interested in candidates who are already living in the Netherlands and have a work permit. 

We are only interested in candidates who are already living in the Netherlands and have a work permit. 

Meer weten?

Yordi Zeijpve

Yordi Zeijpveld

Corporate Recruiter


053 - 480 31 00