Direct contact
Having a website built at an agency means dealing with account managers, project managers, and developers. With me, you talk to the person who actually builds your website. Short lines, fast decisions.
About me
Bitlify builds websites and custom software solutions for small business owners and companies that want to move beyond standard tools, scattered spreadsheets, or manual work. Think of a professional website that builds trust, a dashboard that creates overview, an internal tool that automates recurring tasks, smart AI integrations that save time, or an MVP that helps you quickly test whether an idea works.
I am Stef van Houten, a freelance software developer in Groningen and the surrounding area. I use AI to speed up development and help turn ideas into working products quickly: from professional websites to dashboards, internal tools, AI-assisted automations, and MVPs that save time, create clarity, and actually get used.

Stef van Houten
Freelance software developer
Groningen, Netherlands
Why freelance + AI
Faster delivery and sharper pricing for websites and custom software.
Having a website built at an agency means dealing with account managers, project managers, and developers. With me, you talk to the person who actually builds your website. Short lines, fast decisions.
I use AI to speed up repetitive work, improvements, and routine tasks. That lets me build your website faster and frees up time for SEO, findability, and search engine optimization.
Whether it is an MVP, dashboard, internal tool, or custom software: less overhead and AI speed mean live sooner at a sharper price.
Experience
Selected roles over the years
2026

Software Developer @ Eventim
Building software at real scale: millions of users, billions of database records, and heavy peak traffic, while ensuring high uptime, reliability, and effective production debugging.
Netherlands · Present
2024

Medior Software Developer @ Alserda Media
Built real-time software for games, warehouse software, dashboards, portals, and statistics tooling.
Leeuwarden, Friesland · May 2024 - Dec 2025
2023

Medior Software Developer @ YTEC
Built and improved warehouse software and planning tools.
Groningen, Groningen · Feb 2023 - Apr 2024
2021

Junior Software Developer @ Underdark
Built a custom Python framework for webservers, software for remotely controlling CNC machines, and automated bat detection in videos using FFmpeg.
Leeuwarden, Friesland · Feb 2021 - Jan 2023
Portfolio
A selection of software projects and solutions I use in freelance projects.
MVP Development
I help turn ideas quickly into a first version that can actually be used, including authentication, user management, core functionality, integrations, and a solid base for further development.
A usable first version in weeks, not months.
Operational Software
Internal systems that make processes clearer and more efficient, such as dashboards, portals, planning tools, and warehouse software.
Less manual work, better process control, and clearer insights.
Realtime Systems
Software for situations where timing and reliability matter, such as live statistics, automation, and realtime systems.
Stable performance during use and reliable behavior under peak load.
Priorities
The technical priorities I do not compromise on.
Fast response times, fast deployments, and short feedback loops for both users and teams.
Predictable systems with monitoring, clear error handling, and stable behavior under load.
Architecture that can grow without painful rewrites when usage, data, and traffic increase.
Readable code, clear boundaries, and practical testing so teams can ship safely over time.
Process
An iterative cycle from intake to delivery, refined every sprint.
Whether you need a new business website, an SEO upgrade, or custom software in Groningen, the process stays transparent and pragmatic. We start with a focused intake, agree on a scope you can actually ship, then build in short sprints with working demos so you see progress every week instead of a black box. Priorities shift as we learn, technical choices stay documented, and you keep control over budget and direction at each step. The result: a website or application that goes live faster, performs well in search, and stays easy to extend later with bookings, automations, or integrations.
Step 1
We align goals, users, constraints, and what success should look like, including bottlenecks and business context.
Step 2
Work is split into clear phases and sprint-sized deliverables with documented technical choices and tradeoffs.
Step 3
Short cycles with regular demos, visible progress, and feedback checkpoints so priorities can shift as we learn.
Step 4
Production-ready release with practical handover, then we review results and define the next iteration.
FAQ
Short answers for companies considering a new website, SEO improvements, or practical software in Groningen and the surrounding area.
Yes. Bitlify builds fast, professional websites for entrepreneurs and companies in Groningen, the surrounding area, and the rest of the Netherlands. The focus is on performance, SEO, maintainability, and a clear structure that turns visitors into customers.
Yes. I help make your website easier to find by aligning structure, content, speed, and search terms with what your customers are looking for. The goal is a website that not only looks good, but also brings in visitors and inquiries.
Yes. If your current website has a solid base, I can improve speed, SEO, structure, forms, and integrations. If the foundation blocks further growth, I will be direct about when rebuilding is the better choice.
The price depends on what you need. A simple website is faster and more affordable than a custom solution with bookings or automation. I can help think through an approach that fits your situation and budget.
Yes. I can help with maintenance, updates, and ongoing development so your website stays secure and can grow with your company.
Yes. Websites can be set up so they can later be expanded with functionality like online appointments, automations, or integrations with other systems.
Both. Besides websites, Bitlify also develops dashboards, internal tools, and automations. Think of systems that save time, simplify processes, or reduce manual work.
That depends on the scope, but I usually work toward a first useful version quickly. For a focused business website, a first version can often go live within a few weeks instead of months.
Contact
Phone
+31 6 40811668Location
BitlifyU.T. Delfiaweg 10089745EN GroningenNetherlands
KvK Number
42037850
VAT ID
NL005448019B44
Socials