Join the team

What connects us? A shared love for technology. We genuinely enjoy building smart, high‑quality software. Quality isn’t just a promise,
it’s the baseline we work from, for our clients and for each other.

We believe in trust: in your knowledge, your skills, your decisions. People do their best work when they actually do what they want to.

We are here to help
No question goes unanswered.
This is a learning environment. You only grow when you ask questions. We encourage a curious mindset.

Passionate about our solutions
Building software is what drives us, because it energizes us. We’re all motivated to deliver the best possible result and to deepen our knowledge.

Trustworthy and honest
From day one, we trust. We’re transparent about our numbers, our decisions, and the direction we’re heading.

Building relations to last
A long‑term relationship requires real investment. Taking courses and training is part of your work, all aimed at building a healthy, honest, and sustainable collaboration.


Why work @Keronic?

  • 80% of your time doing billable work for clients, and 20% on
    developing your knowlegde and learning projects.
  • Real impact on the Dutch energy transition and thus on the environment.
  • Work alongside experts in the field and grow into one yourself.
  • Profit distribution at the end of the year.
  • A well‑arranged onboarding program and access to training and courses.
  • Exceptional, people‑focused employer practices,
    rated an 8.4 by our employees.

The Team

IT specialists that accelerate the energy transition

Rob Vogelzang

Rob Vogelzang

Business Manager

Roos Rasenberg

Roos Rasenberg

People Manager

Kees Kremer

Kees Kremer

Founding Partner

Robin Putters

Robin Putters

Founding Partner

Nick Krijgsman

Nick Krijgsman

Founding Partner

Sebastiaan Speck

Sebastiaan Speck

Software Developer

    Pieter van Wermeskerken

    Pieter van Wermeskerken

    Software Developer

      Matthijs Coersen

      Matthijs Coersen

      Software Developer

        Marnix Jonk

        Marnix Jonk

        Software Developer

          Peter Callaars

          Peter Callaars

          Software Developer

            Julian Tekstra

            Julian Tekstra

            Software Developer

              Reinier Koffijberg

              Reinier Koffijberg

              Software Developer

                Xander Petersen

                Xander Petersen

                Software Developer

                  Daan Snoeijen

                  Daan Snoeijen

                  Software Developer

                    Sytse Walraven

                    Sytse Walraven

                    Software Developer

                      Bart Peters

                      Bart Peters

                      Software Developer

                        Justin de Jong

                        Justin de Jong

                        gridXperts
                        Software Consultant

                          Tom Neijnens

                          Tom Neijnens

                          gridXperts
                          Software Consultant

                            Christian Collaert

                            Christian Collaert

                            gridXperts
                            Software Consultant

                              Teun Salters

                              Teun Salters

                              gridXperts
                              Software Consultant

                                Maarten Hofmans

                                Maarten Hofmans

                                gridXperts
                                Software Consultant

                                  Join the team

                                  Join the team

                                  We are always looking for new programmers

                                  Apply now

                                  Join the team

                                  Vacancies

                                  How does someone become an expert? Not by claiming to know everything, but by having the curiosity to explore, learn, and dive deep into a subject. We’re here to help fuel your curiosity by sharing our own.

                                  We invite you to explore our vacancies.

                                  We proudly work for

                                  Our onboarding program

                                  At Keronic, you’ll follow a six‑week onboarding program that gives you a clear and practical introduction to Asset Management and the GE Smallworld™ platform. You’ll learn how its components work together, how to work with its database, and how to develop in the Magik programming language. Each module is led by a different colleague who shares their expertise in an approachable, to the point way, so you can start learning and contributing with confidence.

                                  Starting step by step

                                  Day 1

                                  Introduction

                                  How does our network work, who are our clients, and what makes Keronic different? After that, we dive straight into the the practical part.

                                  Week 1

                                  Make Magik: learn the language

                                  How do you work with Magik? How do you find the right information, and how do you track down errors? Being self‑sufficient is key.

                                  Week 2-5

                                  GE Smallworld™ and Emacs hands-on

                                  The assignments become more complex, giving you a deeper view of the programs we work with. You’ll move closer to the practical application of Magik and how Keronic uses it in projects.

                                  Continuous learning

                                  Final assignment

                                  In the final assignment Nearest Car Park, you will apply everything you’ve learned. Using dummy data, you’ll design a system that calculates the fastest route to a parking garage and displays it on a map. After the program, you’ll start contributing to Keronic’s projects.

                                  Let’s create magik together

                                  We are always looking for skilled people who are open to learn.

                                  Call us

                                  Apply by email

                                  Not exactly what you are looking for?

                                  Latest from our LinkedIn

                                  On our LinkedIn we share what we build and learn like GE Smallworld™ implementations, GIS data migrations, solution architecture, plus best practices on quality and security. We also post events, customer stories, and team updates. Follow for practical insights and company news.