04Studio
Small by design. Senior by default.
Iceland is small enough that reputation is the only marketing that works. Ours is built one shipped project at a time, by engineers who have each run the whole stack before.
- Island.is tender
- 1st of 100 teams
- Founded
- 2020, Iceland
- Seniority
- Senior only
- Ownership
- Your repo from day one
- Location
- Reykjavík, Iceland
- Time zone
- GMT, year round
- Languages
- Icelandic, English
- Company
- Vice Versa ehf.
Fixed scope
A written scope, a fixed price, a date. We carry the risk of being wrong.
Embedded team
A squad inside your organisation, billed monthly, with a two-week notice either way.
Advisory
A senior engineer on call for architecture, hiring and the decisions that are hard to undo.
The short version
We are a small studio of senior engineers in Reykjavík. We take on the problems most teams would rather avoid, we ship them with care, and we hand them back documented, tested and yours. No juniors in disguise. No decks instead of code. Just the work, done well.
- Island.is tender
- 1st of 100 teams
- Founded
- 2020, Iceland
- Seniority
- Senior only
- Ownership
- Your repo from day one
00Where we have been
Regulated, national, and across the Atlantic.
The kinds of projects our engineers have shipped, and the ones we take on.
- 01
Regulated healthcare
Software for FDA-listed medical devices: HIPAA-compliant AWS provisioned with Terraform, regulatory documentation generated from the code, and a pipeline that ships many times a day without breaking traceability.
A platform rewritten underneath an existing FDA listing, now serving patients across 40+ US states.
- 02
Public sector at national scale
Citizen-facing services on shared platforms: open design systems, X-Road integrations, and the monorepo discipline that lets dozens of vendor teams ship into one codebase.
Core maintainers of Island.is after winning its public tender.
- 03
Fintech and trading
Systems that move money and have to explain themselves: autonomous trading inside deterministic guard rails, auditable decisions, broker and exchange integrations.
An AI trading platform across stocks, options, crypto and prediction markets.
- 04
AI in production
Agents, retrieval and evaluation wired into real workflows, with the measurements that make them trustworthy and an MCP surface so other agents can use them too.
A hosting platform with a built-in MCP server for AI-built sites.
- 05
Working with US teams
Reykjavík sits on GMT: a morning overlap with Europe and a full afternoon with both US coasts. Contracts, invoicing and compliance that US companies are used to.
Years of daily collaboration with US-based teams and customers.