Qija // product #1
Music Discovery · Launching 2026
iOS music discovery app with AI-powered recommendations, social listening, and a Swift backend. Built solo end-to-end in 8 weeks using agentic AI workflows.
- Swift
- SwiftUI
- AI/ML
- Server-Side Swift
Designer-engineer · Amsterdam
I bring first products to market. Wrote the first Headspace app. Built the first Rekki app (iOS and Android). Refined at IDEO. 17 years deep on Apple platforms. Now shipping my own products and partnering with a small number of founders, often before the first investor is in the room.
Shipped product with
The short version
Most iOS developers can ship what you ask for. Far fewer have brought a first product to market — before the team, before the investors, before there's even a category. I refined product thinking at IDEO, wrote the first Headspace app, built the first Rekki app (iOS and Android), and have spent 17 years getting deep on Apple platforms since.
Now I pair that taste and depth with agentic AI workflows (Claude, custom pipelines, offline models) that collapse the cost of trying things. One person, working like a small team, deciding what's worth building — and then building it.
Product thinking refined at the world's most influential design firm
Wrote the first Headspace app and the first Rekki app — before either had investors or a category
On Apple platforms since iPhone OS 3. SwiftUI, UIKit, Metal — plus Android when the need is there.
Shipping my own products with agentic AI — small team output, one operator
Products
My own IP. Small, opinionated software shipped with agentic AI workflows. The freelance work funds these; these set the standard for the freelance work.
Music Discovery · Launching 2026
iOS music discovery app with AI-powered recommendations, social listening, and a Swift backend. Built solo end-to-end in 8 weeks using agentic AI workflows.
TBA · Shipping after Qija
Two products = a pattern. One = a lucky break. Next thing already in motion — the build-in-public log will live on the writing page.
Client work
17 years of working with teams that needed someone who could ship and shape. A selection — the full list is longer.
EV Discovery · Los Angeles
iOS development for an electric vehicle discovery platform helping drivers find and compare EVs.
Health Wearable · Amsterdam · $8.7M raised
iOS development for the companion app to the NOWATCH stress and nervous system tracking wearable.
Kitchen Planner
Canopy
Urban World
Portal
Restaurant Ordering
Spirit
Anonymous Camera
Worklens
Hotel Experience
Game / Learning Platform
Cycling App
Beyond the Screen
Million Pound Drop
Artpop App
Lyon AR
How we work together
I take on a small number of founder engagements each year. Pricing is upfront because the "hop on a call to discuss rates" dance is a tax on both of us. Every engagement is built to ship something real — you keep the product, I keep the generalised tooling and the right to write about the build.
From €8,000
2-week sprint, fixed scope. Get a real iOS thing in TestFlight. Good for proving an idea before raising or hiring.
From €5,000/month
15–20 hrs/week, ongoing. Part designer-engineer, part technical co-founder. For founders who want someone who can ship and shape what gets shipped.
€800/day
Minimum 3 days. Audits, architecture reviews, agentic-workflow setup, filling a critical gap.
All prices ex. BTW. Engagements are filtered for fit — if it doesn't make sense I'll say so. No pressure call.
About
My time at IDEO refined how I think about products — the kind of place where you spend as much time deciding what's worth building as you do building it. That stuck. A few years later I wrote the first iOS app for Headspace, back before meditation apps were a category and before the first investor was in the room. I did the same for Rekki — first iOS and first Android app, taking the restaurant ordering product from zero to a real thing in the world. Bringing first products to market is the thread that runs through most of what I do.
Since then: 17 years on Apple platforms. iOS, watchOS, tvOS, macOS. SwiftUI, UIKit, Metal. I've lost count of the Xcode betas. Android too — not my home turf, but I've shipped plenty of it, and with agentic coding the barrier is lower than ever. If the need is there, I do Android. I've shipped product with NOWATCH (stress-tracking wearable, Amsterdam), Pangea.inc (EV discovery, LA), IKEA, Ford, McKinsey, Facebook, NBC Universal, a handful of startups, and yes, Lady Gaga.
Right now I'm doing something different. I'm building my own products with agentic AI workflows — not "slap an LLM API on it," but custom pipelines where Claude and offline models collapse the cost of trying things. The first product, Qija, is shipping in 2026. The second is already in motion. The plan is to keep shipping — small, opinionated software — and to partner with a small number of founders along the way.
I'm humble about most things and not very loud, which means I let the work speak. If you've read this far, that's probably already working.
Writing
Agentic coding has flipped the economics of bespoke code. With the TanStack npm attack as a backdrop — and the pi agent process that makes a lighter, composable architecture viable to own outright.
16.05.2026What I've found so far exploring the BMAD framework — structured agent roles, slash commands, multi-model routing, and the OpenCode integration.
30.04.2026How I moved from hand-holding an AI agent through Redux features to a structured pipeline where tests act as the contract between planning and implementation.
12.04.2026Claude, Ollama, OpenRouter, Perplexity — a €200/month breakdown of the subscriptions that actually make me productive, and where each one falls short.
02.04.2026How I built a multi-agent orchestrator inside pi agent — with research, planning, and implementation sub-agents wired into a single pipeline.
Contact
Got a project, a vague idea, or just want to nerd out about Swift? I'm always happy to chat.