Where most teams are
Someone has to own the technical calls: what to build next, which stack to bet on, who to hire and how to answer an investor who asks about the architecture. A senior Zeroic engineer takes that seat as your fractional CTO, joins your leadership team and leads the engineers, whether they are yours, ours or both.
What your fractional CTO does
Strategy and roadmap
Turns your business goals into a technical roadmap: what to build, in what order and what to leave out, reviewed with you every month so it keeps up with the business.
Architecture and stack
Reviews what you run today, decides where it holds and where it needs work, and owns the calls on stack, hosting, security and AI before they get expensive to undo.
Leading and building the team
Runs your engineers day to day, sets how code is reviewed and shipped, and hires with you: writing the roles, running the technical interviews and onboarding new people.
The hard calls
Build or buy, refactor or rewrite, which vendor to trust, what to show in due diligence. They make those calls with you and explains the trade-offs in plain words.
How it works
- 01
Talk it through
A call about your product, your team and the decisions on your plate. We match you with a senior engineer who fits your stage.
- 02
The first 3 months
Your fractional CTO reviews your stack, sets the technical roadmap, and leads or builds the team, with the plan written down for everyone.
- 03
Month by month
From there it continues month by month, as part of your leadership team: in your planning, your hiring and your investor updates.
Starting at $8,000/mo
Starts with a 3-month first phase, then continues month by month. We agree how much of the week you need on the first call. Need more hands to build? See senior developers.
Talk to us about a CTOFour development phases shipped in eight weeks - React architecture, SSO, Stripe payments, and OpenAI and Claude models wired through AWS Lambda. On time, on budget, zero critical bugs. Rare combination of technical depth and business sense.
Work we've shipped
AI · MVP → Retainer
Performalise
An AI coaching and analytics suite for engineering teams. It began as our MVP, and we have built it with the founder since 2023.
AI · Analytics
Better Analyst (formerly FormulaBot)
An analytics app used by 1.5M+ people. Our senior engineers built its AI layer and 40+ data connectors as it grew.
How we can help
Four ways to work with us - pick what fits, switch when it doesn’t.
Audits
Find what's broken - or whether AI is worth it - before you build.
Learn moreMVP Sprint
Zero to production in 5-6 weeks. A real product, not a prototype.
Learn moreRetainer
A senior engineer embedded on your team, month to month.
Learn moreCode Rescue
Vibe-coded app breaking under real users? We rebuild it to hold.
Learn moreFAQ
Frequently asked questions
How much does a fractional CTO cost?
Our fractional CTO service starts at $8,000/mo, beginning with a 3-month first phase, then month by month. We agree how much of the week your company needs on a call.
What does a fractional CTO do?
Everything a CTO owns: the technical roadmap, architecture and stack decisions, security, leading the engineers and hiring, and the technical side of investor and buyer conversations.
Will our CTO write code?
Where it helps, yes. Most of the week goes to the roadmap, the team and the decisions, but they stay close enough to the code to review it and step in on the hard parts.
Can they lead our existing engineers?
Yes. They run your team's planning, code reviews and releases, and help you hire. If you need more hands, senior Zeroic engineers can join the team too.
What happens after the first 3 months?
It continues month by month, as part of your leadership team. The first phase sets the roadmap and the team; after that, they lead the work against it.
Can our fractional CTO talk to investors?
Yes. They join investor and buyer calls on the technical side, answer due diligence questions and help you write the technology part of your pitch.
Do we own everything that gets built?
Yes, 100%. You own the code, infrastructure, docs and credentials, and the roadmap and architecture decisions are written down for your team.
