I'm Niels, a freelance software engineer. With more than 20 years of experience, I help companies in the southern Netherlands and Flanders build, modernise and maintain software, either as a defined project or by the hour within your team.
20+ years of experience · Engineering as a craft · Remote or on site
Services
You have a clear question and want someone to deliver it.
An application, integration, migration or modernisation with a clear scope. After an intro call you get a proposal with approach and planning. I build in short steps and regularly show what's done. At delivery I hand everything over properly.
Discuss your questionYour team needs extra capacity or specific expertise.
I work within your processes and tools, remotely or on site. I help build new functionality, modernise existing systems, set up CI/CD and take care of observability.
Discuss your questionExpertise
I approach building and maintaining software as engineering. Technologies are tools: I choose what fits the problem and pick up new tools quickly.
Projects
Retail · point of sale
From 32-bit to 64-bit, from Java 8 to 25 and from Spring Boot 2 to 4, replacing outdated dependencies.
Result: a future-proof platform, with shared build conventions for more than 20 repositories.
Charging infrastructure for electric vehicles
Development of smart charging (charging during the cheapest hours) and maintenance of platforms that connect charge points to back offices.
Result: smarter charging for end users and full insight into the systems through OpenTelemetry.
High-tech manufacturing
Architecture roadmap for two products (600,000 lines of code), migration from desktop to web and from SOAP to REST, plus CI/CD.
Result: more maintainable software and a team that works with TDD, clean code and BDD.
Health technology and IoT
Gateway software for a system that uses wireless sensors to map the daily activities of elderly people at home.
Result: a reliable connection between sensors and backend, safeguarded by automated system tests.
More experience on LinkedIn.
About me
I'm Niels de Feijter, a freelance software engineer since 2012, with 20 years of experience across the full software lifecycle. To me, building and maintaining software is engineering: understanding what's really needed, choosing the right tools and mastering them. I've worked in many domains: manufacturing, the energy transition, telecom, health technology and retail. Existing, complex systems are the work I enjoy most.
I'm analytical and like to get to the heart of a problem. I choose simplicity, the right tools and good collaboration. At J-Fall and BrabantJUG I keep up with what's happening in the field.
Contact
Do you have a project, a team that could use reinforcement, or a question you'd like to talk through? Schedule a free online intro call right away, or send me a message.
An online call of 30 minutes via Google Meet. Pick a time that suits you.
Pick a timeTell me in a few sentences:
