Curriculum Vitae · MMXXVICV · MMXXVI

Lommel, Belgium

IT & application specialist

Kristof Polleunis

Technology, made human.

I build, support and improve technology — from web applications and international enterprise systems to medical software and independent desktop products. After more than fifteen years in IT, I am still building, and ready for the next professional chapter.

Now Building RegexPilot — a visual regex builder for macOS.

Explore the journey Download the ATS CV For recruiters

Open to full-time or part-time roles in Belgium.

01 — Introduction

A broad technical foundation. A very human career.

I am an IT specialist with experience across web development, application engineering, systems and support. What has stayed constant is the work of making complicated things usable — for the person at the other end.

I trained as an industrial engineer in biochemistry, then found my way into IT in 1999, when the commercial web was still being invented. I have worked in a small start-up web team, a large international telecoms company, medical software, a university media centre and the non-profit sector. I have written code, supported clinicians, managed infrastructure, edited manuals and stood in front of a lecture hall.

In 2014 I stepped away from full-time work to care for my youngest son, who needs additional support. That chapter does not sit outside my career; it is part of it. Most recently I designed and built RegexPilot, a visual regex builder for macOS. With my son now in daytime support, I am returning to IT with a clear sense of what I do well: understand the system, understand the person, and make the two meet.

Based in: Lommel, Belgium
In IT since: 1999
Looking for: Full-time or part-time
Languages: NL · EN · FR · DE · ES

Hands-on

HTML · CSS · PHP · ASP · Perl · SQL Server · ColdFusion · Linux · macOS · Rust · Tauri · AI integration

02 — The journey

A career, in chapters.

Most recent first. Different employers, one thread: making complex systems useful to the people who depend on them. The dates are exact; the meaning in each role is my own.

2026present
RegexPilot Independent · Belgium

Independent Software Developer / Founder

A visual regex builder for macOS

Designed and built RegexPilot solo with Rust and Tauri: a visual regex canvas, 21 authentic engines, AI-assisted drafting, live testing, a VS Code bridge and a Mac App Store release. Six months of product work, still shipping. This is current independent software-development work within the broader 2014–present chapter.
- Rust
- Tauri
- macOS
- AI
- App Store
See the product
2014present
undefined Lommel, Belgium

Family caregiver

A different kind of responsibility

Stepped away from full-time work to care for my youngest son, who needs additional support. A chapter of its own — read it below.
- Care
- Planning
- Perseverance
Read this chapter
20132014
CVOLINO Belgium

HTML/CSS trainer

Teaching the craft

Taught HTML and CSS, helping learners build a working understanding of the web from the ground up. Explaining structure, styling and debugging clearly sharpened my own foundations.
- HTML
- CSS
- Training
2013
Simply Intense Trinidad & Tobago

Freelance ColdFusion developer

ColdFusion for a Caribbean agency

A 2013 freelance engagement with Simply Intense, a Caribbean digital and creative agency based in Trinidad and Tobago. Contributed ColdFusion (CFML) development to the agency’s work.
- ColdFusion
- CFML
- Freelance
2012
Resto.be Belgium

ColdFusion developer

Quiet security work

A short, focused assignment hardening the Resto.fr and Resto.lu platforms against SQL and JavaScript injection attacks. No drama; just careful, methodical work.
- ColdFusion
- Security
- SQL injection
2011
VZW Handicap & ambulante begeleiding Belgium

ICT manager

Systems with a social purpose

Responsible for the IT infrastructure and support of a non-profit providing guidance to people with disabilities. Kept the systems reliable so the team could focus on people.
- IT management
- Support
- Non-profit
2010
Trefpunt Zelfhulp Belgium

PHP Developer / Web Application Developer

A platform for real questions

Built an interactive online platform from scratch with PHP and MODX for a self-help organisation, including a questionnaire used for reporting. Designed for people with different levels of digital confidence.
- PHP
- MODX
- Online questionnaire
- End-to-end delivery
20082010
KU Leuven Media Centre / CUO, Leuven

ICT Coordinator / Multimedia Trainer

Teaching the web

Managed IT infrastructure, laptops, usability labs and test equipment at the Media Centre / CUO, Faculty of Social Sciences. Gave multimedia lectures to students, mostly on building for the web, and supported the people using the facilities.
- IT infrastructure
- Usability labs
- Multimedia teaching
20062007
Materialise Haasrode, Belgium

Application Engineer / Medical Software Support

Software for steady hands

Worked on SimPlant, 3D implant-planning software used by dental surgeons. Maintained the implant libraries and liaised with implant manufacturers; installed, configured and troubleshot the software; supported clinicians, edited the product manual and helped customers through product adoption, trials and renewals.
- SimPlant
- Implant libraries
- Clinical support
- Documentation
- Customer adoption
20002005
UUNET / WorldCom / Verizon Diegem, Belgium

Application developer

Early enterprise intranet development

Helped design and roll out a pan-European intranet and a family of online applications across EMEA, including North Africa and the Middle East. The stack was Unix, Oracle and ColdFusion; the work ranged from HR tools to billing systems. Coordinated an external development team in India — around twenty people, with three principal developer contacts — and did analysis and specification for my own projects.
- Unix
- Oracle
- ColdFusion
- EMEA
- Subcontractor coordination
19992000
Econocom Zaventem, Belgium

Junior Web Developer / Webmaster

The web, when it was new

Part of a small team building websites and web applications for Econocom clients including INNO and chocolatier Wittamer. Worked across design and development with PHP, HTML, CSS, ASP, Perl, SQL Server, Flash, Photoshop and Illustrator, and helped maintain the company intranet.
- PHP
- ASP
- Perl
- SQL Server
- Flash

Alongside these roles: occasional freelance web development and related projects, 2005–present — refactoring, migrations, performance and translation.

03 — Selected work

Work that mattered.

A current macOS product, then four projects that show the range: an international intranet, medical planning software, an NGO platform and the early commercial web.

Now — 2026

Independent product

RegexPilot

A regex should read like a sentence.

A Mac-native visual regex builder. Drag blocks onto a railroad-diagram canvas, test against the engines your code actually runs, and ask AI for a draft in plain English.

Role: Founder, designer & developer
Built with: Rust · Tauri · macOS
Shipped: v1.4 · Mac App Store
Since: 2026 · six months and counting

regexpilot.com Mac App Store VS Code extension Technical note: 21 engines

AI & automation Alongside RegexPilot: about a year of hands-on AI work using Claude, OpenAI and DeepSeek — building workflows, agents and reusable skills.

RegexPilot for macOS: a complex regular expression shown as a visual railroad diagram, with a pattern library and a plain-English description. — RegexPilot 1.4 · macOS

From idea to application

01
The problem
Regular expressions are powerful, but hard to construct and easy to misread.
02
The idea
Make construction visual: drag blocks onto a railroad canvas and see every part explained in plain English.
03
The engineering
Rust and Tauri, real regex engines, AI-assisted drafting and live testing. Supporting 21 engines meant normalising syntax, feature support and match semantics across implementations.
04
The result
A working macOS product, distributed through the Mac App Store.

A shared intranet and online applications across EMEA, built on Unix, Oracle and ColdFusion.

2000—2005UUNET / WorldCom

International intranet · EMEA

An early enterprise intranet across EMEA.

The challenge: Build a shared intranet and a family of applications for a company working across EMEA, North Africa and the Middle East.
My role: Application developer, and coordinator of a development team in India.
The work: Unix, Oracle and ColdFusion. Applications from HR tools to billing. Clear interfaces, reliable data, and the patience to align teams across countries and time zones.
What it taught me: A substantial international enterprise platform, developed during the early growth of corporate intranets — and a lesson in coordinating an overseas development team, bridging cultural differences and working inside an international organisation.

The clinical starting point: 3D imaging used to plan implant placement.

2006—2007Materialise

Medical software · 3D planning

Precision, in three dimensions.

The challenge: Dental surgeons used SimPlant to plan implant placement and drill guides in three dimensions.
My role: Medical software engineer.
The work: Maintained implant libraries, supported clinicians and edited the manual. The role sat between the software and the operating theatre: precise data in, clear guidance out.
What it taught me: Multitasking across roles — application engineering, support, documentation and manufacturer liaison — while keeping clinicians, manufacturers and clients aligned around the same product.

A simple entry point for people with different levels of digital confidence.

2010Trefpunt Zelfhulp

Interactive platform · NGO

A platform for real questions.

The challenge: Create an interactive online platform for a self-help organisation, including a questionnaire used for reporting.
My role: Independent developer, end to end.
The work: Built with PHP and MODX for people with varying digital confidence. The work was as much about clear language and pacing as about code.
What it taught me: A practical platform that fit the organisation, not a generic course template.

INNO, the Belgian department store: early commercial web work in a small team.

1999—2000Econocom

Early web · Belgium

The web, when it was new.

The challenge: Build websites and web applications for Belgian clients.
My role: Junior webmaster in a small, new web team.
The work: Worked across design and development with PHP, HTML, CSS, ASP, Perl, SQL Server, Flash, Photoshop and Illustrator. Clients included INNO and the chocolatier Wittamer. Also kept the company intranet running.
What it taught me: An early education in shipping real work to real users.

03.2 — The connections

A career is not a list.

The same capabilities reappear in different settings. Choose a thread to see where it was practised.

Hover or tap a thread. Use Tab and Enter for the keyboard.

Where it was practised

Web development

From a first commercial web team to an international intranet, an online platform and security work. Still my natural home.

Econocom
UUNET / WorldCom / Verizon
Trefpunt Zelfhulp
Resto.be
Freelance (care years)

04 — A different chapter

2014 — present

A different chapter. The same commitment.

A different kind of responsibility.

In 2014 I stepped away from full-time employment to care for my youngest son, who requires additional support. It was a deliberate decision, made in the knowledge that some work cannot be outsourced.

The years that followed asked for patience, organisation and calm problem-solving. I learned to plan around uncertainty, to advocate for someone who cannot always advocate for himself, and to keep going when there was no manual. Alongside caregiving, I renovated our home from planning to execution — budget, materials, timing, trades — took on occasional freelance web development projects, and designed and built RegexPilot, a macOS app that shipped on the Mac App Store in 2026.

With my son now in daytime support and more independent, I am ready to return to professional life. I am not asking anyone to overlook those years. I hope employers will recognise what those years have given me: a broader perspective, a steadier hand, and a deep appreciation for work that is useful and well done.

What those years built

01
Patience under pressure
Calm, consistent attention when the day does not go to plan.
02
Planning and advocacy
Coordinating care, appointments and professionals; making the case for what is needed.
03
Practical problem solving
Renovating a home end to end; learning by doing, budgeting, and finishing what I start.
04
Sustained curiosity
RegexPilot is the clearest result: a product designed, built and shipped solo.

With RegexPilot shipped and my son now in daytime support, I am ready to bring that experience to a team — full-time or part-time, in IT support, application engineering, web development or a blend of these.

I share this chapter without disclosing details that belong to my son.

05 — Languages

Five languages. Different depths.

The German and Spanish editions are provided for accessibility. The proficiency levels above reflect my own assessment.

06 — Contact

The next chapter starts here.

I am looking for a role in IT support, application engineering, web development or systems coordination — somewhere careful thinking and clear communication matter. Full-time or part-time, in Belgium.

kristof.polleunis@gmail.com

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Kristof Polleunis · Lommel · November 2026

Kristof Polleunis

A broad technical foundation. A very human career.

A career, in chapters.

A visual regex builder for macOS

A different kind of responsibility

Teaching the craft

ColdFusion for a Caribbean agency

Quiet security work

Systems with a social purpose

A platform for real questions

Teaching the web

Software for steady hands

Early enterprise intranet development

The web, when it was new

Work that mattered.

RegexPilot

The problem

The idea

The engineering

The result

An early enterprise intranet across EMEA.

Precision, in three dimensions.

A platform for real questions.

The web, when it was new.

A career is not a list.

Web development

A different chapter. The same commitment.

Patience under pressure

Planning and advocacy

Practical problem solving

Sustained curiosity

Five languages. Different depths.

Nederlands

English

Français

Deutsch

Español

The next chapter starts here.