From idea to
your first customer
One developer from strategy to design, code, and launch. Fewer handoffs, faster decisions, and a product built to win real customers.
Capabilities
Whatever you need,
from idea to production
How we work together
Your project,
inside one platform
You do not just get code. You get a private project platform where progress, priorities, decisions, previews, and launch status stay visible from day one.
The whole build, made visible
Strategy, design, development, feedback, and launch live in one place, so you can always see what is happening now and what comes next.
Your project platform
A live view of what is done, what is in progress, and what still blocks launch.
Live project status
How far we are, what has shipped, and what is still needed before launch.
78%
Overall progress
On track
Launch: this week
Latest update
Checkout flow shipped
Stripe integration live. Onboarding and dashboard up next.
Code built to last
Typed, tested, and peer-reviewed before every release. Your codebase stays clean so future features ship faster, not slower.
const release = {
typed: true,
tested: true,
reviewed: true,
deployable: true,
}
One conversation, zero layers
Direct access to whoever ships it — no middle layers. Decisions in hours, not days.
You · now
Booking flow before Thursday?
Rasmus · 20 min
Stripe in — preview on the way.
System · deploy
Live — payments flowing.
Work
Products in the market
not just in a portfolio
These are live products with real users and real revenue. Built from zero to launch and still growing.
Mercan
As seen on Løvens Hule · DR
Beauty booking app that replaced pen-and-paper scheduling for salons across Denmark. Backed by Anne Stampe on Løvens Hule (DR).
Subscription platform where expert bettors sell picks and members track high-signal insights. Payments, dashboards, and retention loops from day one.
About
One developer,
full ownership
Rasmus Nielsen
Founder & developer
Most product ideas die in the gap between “great concept” and a working product people can pay for. I started CopenDev to close that gap. Computer science background from ITU Copenhagen, full-stack skill set, and one goal: get your product live, usable, and generating revenue.
When you hire CopenDev you hire me directly. No handoffs between designers and developers, no layers of project management. I handle architecture, interface, and infrastructure so every decision stays fast and every detail compounds: sub-second loads, polished UI, and a codebase that welcomes the next feature instead of fighting it.
Contact
Tell me what
you’re building
Drop me the idea, the timeline, and how far along you are. I reply within 24 hours with an honest take on scope, cost, and the fastest path to launch.
rasmus@copendev.dk