A Copenhagen engineering studio that turns complex technical problems into software people rely on. We work with founders and product teams who can't afford to get it wrong.
We're not a body-shop. We're not a feature factory. rapid42 is a focused studio built on a single conviction: that software only matters when it works exactly as intended, at any scale.
The name says everything. Rapid — because speed is a competitive advantage when it's backed by precision. 42 — because every decision we make is the answer to a specific question. Not guesswork. Not boilerplate.
We've built systems that process millions of daily events. We've rebuilt legacy platforms that were holding companies back. We've shipped mobile apps, SaaS products, developer tools, and the infrastructure underneath all of it.
What we bring is engineering depth combined with product thinking — the ability to hold both the technical and the human dimensions of a problem at the same time.
Our work is judged by uptime, throughput, and user outcomes — not by how it looks on a portfolio slide. We build for the long term.
Rapid doesn't mean reckless. We move fast because our architecture is designed carefully upfront — not patched together at the end.
No juniors on your codebase. Every engineer on your project has shipped production systems at scale. The people who build your product are the people you speak to.
We tell you when your idea needs rethinking before we build it. A direct conversation now is cheaper than a refactor in six months.
A multi-tenant SaaS platform engineered from the ground up — handling complex data pipelines, real-time event processing, and high-availability infrastructure for enterprise clients across Northern Europe. [PLACEHOLDER — UPDATE WITH REAL DESCRIPTION]
High-throughput API layer processing millions of daily requests with sub-50ms p99 latency. [PLACEHOLDER — UPDATE WITH REAL DESCRIPTION]
End-to-end product engineering across mobile and server — from product architecture through to App Store launch. [PLACEHOLDER — UPDATE WITH REAL DESCRIPTION]
Internal developer experience platform that cut deployment cycle time by 60% for a product team of 25. [PLACEHOLDER — UPDATE WITH REAL DESCRIPTION]
Every engagement follows four stages. Not because it's rigid — because it works. Each phase has a defined output and a clear exit criterion before we proceed.
We dig into your problem space before writing a line of code. Business context, technical constraints, user needs. Structured discovery that prevents months of expensive wrong turns.
We design the system before we build it. Data models, API contracts, infrastructure topology. Decisions made now are free. The same decisions made during a production incident are not.
Iterative delivery in two-week sprints. Real working software at the end of every cycle. You see progress constantly — not a big reveal six months from now.
Deployment, monitoring, documentation, handover. We don't disappear at go-live. We stay through stabilization and offer ongoing engineering retainers for teams that need continued depth.
Engineers who have built at scale. No handoffs, no junior substitutions. The people you meet are the people who build your product.
[PLACEHOLDER — UPDATE WITH REAL BIO] Background in distributed systems and product architecture. Previously engineered at scale for [PLACEHOLDER — company].
[PLACEHOLDER — UPDATE WITH REAL BIO] Full-stack expertise with a focus on cloud infrastructure, API design, and data-intensive systems.
[PLACEHOLDER — UPDATE WITH REAL BIO] Bridges product thinking and engineering execution. Specializes in user-facing systems and performance optimization.
[PLACEHOLDER — UPDATE WITH REAL BIO] DevOps and cloud infrastructure specialist. Track record of zero-downtime deployments across high-traffic production environments.
Tell us what you're working on. We'll respond within one business day with honest thoughts — whether we're the right fit or not.