'%3e%3crect%20x='0'%20y='0'%20width='566.93'%20height='566.93'%20style='fill:none;'%3e%3c/rect%3e%3cg%20id='Layer-1'%3e%3cg%3e%3cg%20transform='matrix(1,0,0,1,260.611,313.677)'%3e%3cpath%20d='M0,-58.52C-2.891,-57.141%20-5.629,-55.45%20-8.158,-53.488C-10.502,-51.67%20-12.528,-49.6%20-14.549,-47.442C-18.196,-43.546%20-25.492,-35.754%20-25.492,-35.754L-25.497,-62.85L-49.552,-86.905L-49.552,-18.353C-49.552,-13.32%20-51.314,-8.177%20-54.786,-4.468C-56.679,-2.447%20-58.793,-0.736%20-61.333,0.471C-64.384,1.92%20-67.772,2.588%20-71.145,2.432C-79.836,2.037%20-87.539,-4.039%20-89.971,-12.39C-94.2,-7.874%20-98.43,-3.357%20-102.659,1.162C-104.272,2.885%20-107.498,6.329%20-107.498,6.329C-107.498,6.329%20-106.295,8.229%20-104.959,9.856C-103.802,11.264%20-102.571,12.668%20-101.274,13.915C-98.535,16.547%20-95.476,18.85%20-92.172,20.727C-79.634,27.848%20-63.969,28.385%20-50.964,22.178C-48.055,20.789%20-45.298,19.083%20-42.755,17.102C-40.448,15.305%20-38.448,13.264%20-36.456,11.135C-34.447,8.99%200.935,-28.797%204.572,-32.683C10.918,-39.459%2021.839,-40.586%2029.722,-35.892L29.722,-61.597C29.722,-61.597%2028.425,-61.883%2028.134,-61.943C25.194,-62.544%2022.191,-62.845%2019.188,-62.845C12.388,-62.845%205.976,-61.371%200,-58.52'%20style='fill:rgb(237,37,40);fill-rule:nonzero;'%3e%3c/path%3e%3c/g%3e%3cg%20transform='matrix(1,0,0,1,349.055,313.342)'%3e%3cpath%20d='M0,-57.846C-2.862,-56.419%20-5.569,-54.682%20-8.063,-52.678C-10.188,-50.971%20-12.038,-49.045%20-13.896,-47.062C-16.06,-44.75%20-24.796,-35.418%20-24.796,-35.418L-24.801,-62.515L-48.856,-86.57L-48.856,-18.018C-48.856,-12.985%20-50.616,-7.84%20-54.089,-4.133C-55.983,-2.112%20-58.097,-0.401%20-60.638,0.806C-63.687,2.255%20-67.077,2.927%20-70.449,2.767C-79.137,2.394%20-86.668,-3.85%20-89.095,-12.186C-93.324,-7.668%20-106.7,6.556%20-106.7,6.556C-106.7,6.556%20-104.447,10.553%20-100.577,14.249C-97.83,16.872%20-94.779,19.187%20-91.475,21.06C-78.991,28.146%20-63.418,28.719%20-50.442,22.595C-47.526,21.219%20-44.763,19.525%20-42.211,17.554C-39.849,15.73%20-37.802,13.652%20-35.769,11.478C-33.785,9.361%201.438,-28.258%205.256,-32.335C9.177,-36.523%2015.084,-38.625%2020.78,-38.441C27.511,-38.223%2033.837,-34.612%2037.472,-28.95C40.888,-23.63%2041.659,-16.85%2039.534,-10.897C37.666,-5.663%2033.656,-1.319%2028.593,0.97C23.53,3.258%2017.526,3.41%2012.358,1.371C6.468,-0.953%201.86,-5.971%200.087,-12.057C-4.146,-7.536%20-17.321,6.538%20-17.321,6.538C-17.321,6.538%20-14.886,10.107%20-12.049,13.177C-9.963,15.435%20-7.556,17.384%20-5.015,19.115C5.786,26.478%2019.56,28.724%2032.136,25.142C38.37,23.368%2044.187,20.211%2049.087,15.969C53.101,12.497%2056.638,8.424%2059.213,3.777C65.683,-7.891%2066.546,-22.219%2061.537,-34.583C57.539,-44.453%2049.992,-52.747%2040.505,-57.579C27.504,-64.2%2012.619,-64.135%200,-57.846'%20style='fill:rgb(237,37,40);fill-rule:nonzero;'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3cg%20id='Layer-11'%3e%3c/g%3e%3c/svg%3e){kind=small}
Who I am
Jelle. I wanted to be an inventor, and that never changed. After more than twenty years in software one thing is certain: the most energy comes from problems that don't have a solution yet.
- Ref
- JO-2026-0923
- Classification
- Public
- Date
- 23.09.2026
- Location
- Valkenburg ZH, NL
Hello, I'm Jelle
An inventor by nature, a maker by profession. I turn complex problems into solutions that work, and keep working. More than 20 years of experience where hardware, software and the client meet.
20+years of experience
From proof of concept to working solution, with a workshop next door.
This is the long version. The short one is on my CV.
What I do
I design software platforms and turn complex challenges into solutions that actually work. At Doxx I do that with a team. On the side I build products and applications with the same seriousness, just for the love of it.
How I work
Understand first, build second. I'd rather ask a good question than jump straight to a solution. Once the problem is clear, the rest usually follows. Start simple, test, adjust. Repeat until it's right.
What drives me
Problems without a good solution yet. The moment something complicated suddenly becomes obvious. Building things that didn't exist before. That goes for software, but just as much for a mechanical design or a 3D print that solves a problem nobody had an answer to yet.
Good software goes unnoticed. It simply works, year after year.
Education
BSc Electrical Engineering
Specialisation in Computer Engineering
The Hague University of Applied Sciences, 2004
cum laude
Certificates
- AgilePM Foundation
- AgilePM Practitioner
Languages
- Dutch
- English
- German
02 / Experience
First the machines, then the data, now the software and the team.
2020–present
Software Development Manager & MT member
Doxx BV
2006–present
Owner / Creative Director
Whappa Multimedia Design
Started by building websites for clients, PHP, with Bolt CMS, October CMS, Laravel and WordPress as backends. Around 2016 the focus shifted to personal product design under the JDO Solutions brand: 3D-designed and printed products, including the GraviTrax lift (v1 through v4), licensed to distributors. Since the arrival of Claude Code in 2025 a new dimension has opened up, directing AI agents to deliver larger projects with far greater efficiency. These days my own products and client work run side by side: platforms and apps under my own name, and identities and sites for clients.
Claude CodeTypeScriptReactPostgreSQLMCP
2016–2020
Full Stack Software Developer & Architect
Doxx BV
AngularJSJavaScript4DREST API designCSS / SCSS
1 project
2014–2015
Manager (Bio)informatics
Piculet Biosciences BV
2012–2014
Bioinformatician
FlexMers BV
2010–2012
Senior Software Engineer / Bioinformatician
FlexMers BV
2004–2010
Software Development Engineer
FlexGen BV
2004
Software Engineer
Dutch Space
Graduation internship at Dutch Space. The LabVIEW proof of concept had worked. Now the software needed to be production-ready. I worked directly under the Software Architect of Ordina to set up a logical, scalable structure for the FAI software package in C++ and Qt 3.x. From prototype to a production-grade software suite.
2003–2005
Freelancer / Web Designer
Mediaweb Internet Integrators
As a freelance web designer at Mediaweb I integrated payment systems into existing websites (ASP, PHP, MySQL, Triple Deal Payments, Ogone Payments) and handled changes and maintenance of client websites.
2003
Web Designer
Mediaweb Internet Integrators
Web designer at Mediaweb Internet Integrators in Noordwijk. I developed a fully automated system for ordering and paying for hosting packages and domain names (PHP, MySQL, Ogone payments). Also responsible for changes and maintenance of client websites in PHP, HTML, CSS, ASP and MySQL.
2002–2003
Software Engineer (orientation internship)
Dutch Space
Orientation internship at Dutch Space. The LUMC had approached them for this project, because the precision to build such an instrument was in house there. Goal: prove that DNA microarrays can be produced using laser light focused precisely by galvanometer mirrors, and an oligosynthesizer on a microscoopglass slide. I developed the first control software for the prototype in LabVIEW and was responsible for assembling and testing the first functional model, both hardware and software. The proof of concept succeeded: the technology worked.
03 / Project portfolio
Big systems, small things, and everything in between that I made myself.
7 / 7
PRJ-001
In progress
PRIS researcher
04 / Skills
Not what I once read about, but what I actually used, and where.
20+
Years Experience
7
Projects
27
Technical Skills
3
Leadership Skills
Skills · Hover a skill to see the connected projects.
Programmeertalen & Scripting
Frameworks & Libraries
Databases
Mobile Development
DevOps & Tooling
Software Architectuur
Contact
Curious? Let's get to know each other.