Google Premier Partner
Meta Business Partner
Gerwin Kuijntjes
I'm a software engineer and I build MarketingConcurrent's internal systems. MC Hub brings together clients, quotes, hours and online marketing data, and you can talk to it with AI. I love helping colleagues work more efficiently, so they have more time for work that gives them energy.
- Backend & APIs (.NET)
- Kubernetes & cloud infrastructure
- AI integrations & automation
- At MarketingConcurrent since
- 2026
- Experience in software
- 3+ years
- I speak
- NL · EN
- I code in
- C#, JS/TS, Python
First understand the problem, then build, until it runs in production and the users are happy with it
I studied Computer Science at Avans and worked as a backend developer from 2023. At a software agency I replaced the Azure hosting with our own server cluster, saving €1,400 a month. Alongside my work I built four SaaS products of my own that are live, including StaticForm (forms for websites) and Vessia (administration for inland waterway skippers).
You can count on me: I stick with it and finish what I start. I begin by listening to how you or your client really work, because the best solution comes from practice. You talk directly to the person who builds, I explain everything in plain language and I think along about what you need, not just what you ask for.
Cases from Gerwin’s field
iiUsed: revenue +500% and ROAS +500% since launch.
Refined tracking, AI-driven bidding and early access to Google beta features, together good for 500% more revenue and a 500% higher ROAS since the start of our partnership.
IICON. Amsterdam: 13 countries at once, revenue +900%.
Successful international expansion into 13 new countries, each market with its own audiences, language and AI for local optimisation. 900% revenue growth and 200% higher ROAS since launch.
SSchuimwinkel: from a local business to €3,000,000 per year.
With Google Ads from barely any revenue to €3M per year at a ROAS of 900%. Several new countries were launched successfully and the webshop migrated to Shopify.
A quick introduction
- Lives in
- Ochten
- Outside work
- At least an hour of walking in the woods every day, and reading.
- Favourite tool
- T3 Code: AI builds along with me and makes my engineering work easier.
- Fun fact
- I only work from my laptop, without an external screen, mouse or keyboard, because that helps me focus best. When the weather is nice I work outside in a garden chair, laptop on my lap and the sun on my face.
Technology keeps getting cheaper, so you stand out by understanding your client's problem better than anyone else. Start there, and only then choose the tool.
Want to talk it through with Gerwin?
Book a free strategy call. Within 30 minutes you will know where your growth opportunities are.
