Enterprise-grade engineering, at startup speed.

Senior engineers who have taken startups from prototype to funded product, so you make the right architecture, technology, and AI decisions early, and don't rebuild after your seed round.

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What we do for startups

From first line of code to a product investors trust.

Your idea, implemented.

PoC · 1 week from CHF 10'000

We turn an idea into something you can actually put in front of people: a Proof of Concept, a working, demo-ready slice of your product. It answers the question that matters right now: does this work, and will anyone want it? You walk away with a tangible artifact for users, investors, or your own team, instead of another slide deck.

MVP · 4 weeks from CHF 50'000

When you're ready to go to market, we build a Minimum Viable Product: a real, production-grade product with the core features your first users need, engineered to hold up as you grow. Not a throwaway prototype you'll pay to rebuild after your seed round: we build it right from day one, so the code you launch with is the code you scale with.

Safe AI Adoption

AI can make your team dramatically faster, or quietly introduce security holes, licensing risks, and code nobody understands. We help you adopt AI-assisted development the right way: choosing the right tools, setting up guardrails that protect your code, data, and IP, and establishing practices that keep quality high and costs under control as you ship faster. You get the speed of modern AI tooling without the traps that catch teams who move fast without a plan, so "we use AI" becomes a genuine edge, not a liability that surfaces in due diligence.

CTO as a Service

Not every startup can hire a senior CTO on day one, but every startup needs that judgment. We act as your fractional technical leadership: setting engineering direction, making the hard architecture and tooling calls, hiring and mentoring your first developers, and keeping delivery on track. You get the experience of a seasoned CTO without the full-time cost or the equity, for as long as you need it, whether steering your early build or bridging the gap until you hire in-house. When you're ready to bring on your own CTO, we hand over cleanly.

Technology Strategy

Before you write a line of code, or after you've inherited a codebase that's fighting you, we help you make the decisions that are expensive to reverse: architecture, tech stack, build-vs-buy, hosting, data, and the sequence of what to build when. You get a clear, opinionated roadmap grounded in what your business actually needs, from engineers who've made these calls at real startups, so you avoid the costly rebuilds and dead-ends of choosing wrong early, and give your team and your investors confidence that the foundation is sound.

Built by engineers who've shipped real products

Code 83 is led by engineers who have taken startups from prototype to funded, market-ready products. That's the senior judgment behind every engagement, so your architecture, technology choices, and AI adoption are right the first time.

Meet the team

Have any projects in mind?

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