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petrenko.cv

For YC founders · Fractional CTO

You have the product vision. I'll own the engineering.

Non-technical founder building an AI or SaaS product? I step in as your fractional CTO — architecture decisions, hiring the first engineers, shipping the product, and talking to investors about the tech. No full-time CTO hire needed at your stage.

Who this is for

You're a non-technical co-founder or solo founder with a working idea and no CTO yet

You're building an AI product, SaaS tool, or developer-facing platform

You need someone who can make real technical decisions, not just give advice

You're at prototype, launched, or early revenue — not pre-idea

What I handle

Everything technical, end to end.

Architecture

Tech stack decisions, AI product design, infra choices that don't box you in at Series A.

Shipping

MVP to production. I write code and I lead engineers — no hand-holding required.

Team

Hire the first 2–3 engineers, set up code review, define what good looks like.

Investor prep

Technical due diligence, architecture docs, the CTO conversation in your fundraise.

Why trust me with your stack

I build things myself. Not just manage them.

How it works

Start with a conversation, not a contract.

01

30-min call

Tell me what you're building, where you're stuck technically, and what a CTO would unblock for you. No pitch, just a real conversation.

02

Discovery sprint

2–4 weeks. I assess your stack, architecture choices, and technical roadmap. You get a concrete decision document: what to build, in what order.

03

Fractional engagement

Weekly retainer or fixed project. I'm in Slack, reviewing PRs, talking to your engineers, and in the room for technical investor conversations.

Available for YC-stage engagements · 2026

Tell me what you're building and what's blocking you technically.

AI SaaS · developer tools · B2B platforms. Discovery sprint in 2–4 weeks, then a retainer or fixed project.

Send me a message