Best, NB, Netherlands

Full Stack .NET Software Engineer

 Job Description:

Are you looking forward to making an impact in cleaner, greener energy for big public & commercial transport solutions? Then join our energetic, international team!

Curious about our mission? Check this 1-minute film starring our chargers at Schiphol:

You have excellent command of the English language. Dutch is a bonus.


The role:

As a  Full Stack .NET Software Engineer, you will play an important role in building, designing, maintaining and debugging the next version of Heliox’ IoT Asset and Energy Management SaaS Solution (Heliox Service House).

You will implement functionality, subsystems, and deploy increments of the Heliox Service House software. We are working on CI/CD for this, so your work will be automatically tested (and needs to be test-ready).

You will work closely together with Project Managers, the Product Owner, Architects, and the Development Team.

You report directly to the Manager Software (career & development) and to the Project Manager (project related).


Your main tasks and responsibilities :

Medior level:

  • Researching, designing, testing and implementing software solutions
  • Write high quality, robust, structured code and commit to the source control system.
  • Maintaining and debugging existing software solutions
  • Updating user-story and task information
  • Estimate user-stories
  • Participate in stand-ups, sprint planning and review


Senior level, added:

  • Propose and explain architectural choices
  • Design and spec new functionality with the Product Team
  • Code review
  • Scrum Master


You are:

A true software expert; You are an adventurous inventor and you are very familiar with all layers of the technology stack used to create software products. You know how each level works, and more importantly, you can manipulate any internal structure.

You are a strong team player, you have a winners’ mentality and you are reaching for excellence. With your can-do mentality, you take ownership by steering upon on time deliverables with the right quality of content.



You show these competencies by being:

  • a strong analytical thinker, with attention for detail
  • committed to yourself ánd to the team
  • result-oriented and a problem-solver
  • open for change and inclusion minded.
  • accountable for performance 


This is on your cv:

·         A bachelor (HBO) or masters’ degree in Bachelor or Masters’ degree in the field of Computer Science, Mathematics, or similar

·         4+ years of relevant experience in a similar position, preferably within a high-tech organization;

Pré: Working experience in other large, high scale IoT SaaS Platform development

·         Full proficiency of English (native or near native level), Dutch is a bonus.



You have knowledge of:

-          C#, ASP.NET (Core) & .NET (Core)

-          unit testing, CI and CD

-          design Patterns / SOLID / Object Oriented Programming

-          Docker / Containers

-          databases / T-SQL

-          Source Control tools (Git, Bitbucket)

-          Issue trackers

-          Agile development process


-          Frontend frameworks like Blazor, React, Angular or Vue

-          Linux

-          Experience with charging equipment and charging standards (OCPP, OCPI etc.) is an absolute pre.




We offer:

A challenging and pivotal role within a scale-up company with a mission to make the world a better place. We have an open environment where you can continuously develop yourself. And:

·         a salary between € 3.700,- and € 4.500,- gross per month (full-time), depending on your experience, level (medior/senior) and competencies.

·         good fringe benefits such as profit sharing and a personal bonus (both performance dependent), flexible working hours, 31 vacation days (FT), and training opportunities.

·         a laptop and a mobile phone.

·         A professional and fun team, consisting of more than 30 nationalities.

·         Energy at our headquarters in Best, with fresh coffee (ground beans), our sit-stand desks and a selection of fresh fruit.



Recruitment agencies: we prefer to recruit our newest Helioxers ourselves. We will not react to calls or mails, we know where to reach you in case we need help!


Do you also feel the energy while reading about this open job positionAPPLY!

Push the application button, upload your cv and answer 3 open questions     

(motivation is not needed, but you can upload one if you want).

Any questions? Call our Corporate Recruiter Debby Bastiaansen +31(0)6-11183562. Or send a WhatsApp.


Do you also want to be a Helioxer, but rather in a different position? Check out our career page and follow us on LinkedIn!


More about Heliox:

Heliox is the Global Market Leader in charging infrastructure for electric transport solutions. At this time our reliable and robust products are being used in the world’s largest opportunity charged e-bus projects. We also deploy fast-charging infrastructure for electric trucks, port equipment and marine transport as a turn-key solution.

Heliox is growing rapidly! Now, approximately 180 people are working at Heliox, but we expect to double that number by the end of 2022! Our (fast) charge systems have been installed in more than 20 countries all over the world. Over the last couple of years, we have won the prestigious FD Gazelle Award 4 times for fastest-growing company in the Netherlands. We have also won the VDV award for best electrical charging infrastructure and we are very proud of that.

Our core values are: Sustainable – Cooperative – Exploring – Sincere – Ambitious - Proud

  Required Skills:

React Environment Bonus Performance Career Development Bitbucket ARe Recruitment Development Architects Angular Design Patterns Unit Testing Project Managers Ownership Award Deliverables Energy Docker ASP.NET Infrastructure Salary Mathematics Databases Programming Computer Science C# Git Software Testing Design Planning Science English Training Management