Sam Petrenko · Founder · CTO · Entrepreneur
Public code activity becomes account signals, buyer context, and outreach worth sending. MCP-ready workflows that meet developers where they already are.
The developer intent and identity engine. Turn public Git activity into deanonymized company accounts, verified developer emails, and active competitor defection signals.
Vibe coding turned into a self-learning AI software factory. Run dozens of tasks in parallel through adaptive quality gates, automatically learning from failures.
Track record
One pattern across each chapter: find the bottleneck, build the system, make it scalable enough for other people to run.
Building an AI-native product that converts developer signals — commits, repos, stack choices — into account intelligence, buyer context, and outreach worth sending. MCP-ready workflows that meet developers where they already are.
Built software for lead generation and PLG functions. Products have generated over $10M in pipeline revenue for customers — campaign operations, landing pages, lead routing, CRM workflows, reporting, and appointment conversion.
Launched 100+ Martech plugins and tools that gained over 5M users globally. Turned services know-how into WordPress themes, plugins, demos, documentation, support content, and purchase funnels.
Built a software development company serving e-Commerce businesses from the ground up — grew to nearly 70 employees across engineering, finance, and marketing. Established department workflows, led business optimization, and delivered 20+ enterprise solutions.
Services
Engineering leadership, delivery systems, hiring, finance-aware operations.
Open pageAgent design, MCP workflows, signal extraction, dev-led sales motion.
Open pageAPI/SDK design, integrations, funnels, attribution, RevOps.
Open pageFAQ
A fractional CTO owns the technical decisions a founder can't yet justify a full-time CTO for — architecture, hiring, AI product direction, and the systems that turn engineering into revenue. You get senior technical leadership a few days a month instead of a $250k+ full-time hire.
Engagements are scoped to outcomes, not hours: a fixed monthly retainer for ongoing CTO-as-a-Service, or a defined project for AI GTM and RevOps work. We agree the goals up front and I bill a flat monthly rate — no long lock-in contracts.
AI GTM services position and build the go-to-market motion for AI and developer products — messaging, channels, and the pipeline that turns product signal into revenue. CTO-as-a-Service is ongoing technical leadership (architecture, hiring, delivery). RevOps wires the data, tooling, and automation that connect marketing, sales, and product into one revenue system.
AI startup founders, SaaS teams, and developer-tool builders who need senior technical and go-to-market help now — usually pre-seed to Series A companies scaling their first revenue systems.
17 years of operating experience. I work with AI startup founders, SaaS teams, and DevTool builders — covering the decisions that sit between CTO, product, growth, and revenue operations.
A short introduction to Sam Petrenko's work across AI software, engineering leadership, and growth systems.
I scaled Webinse from a solo operation to a 70-person agency. Here's what I got wrong along the way, and what I'd change if I were doing it again.
Developers don't respond to the same playbook as SMB buyers. Here's how I think about go-to-market when the buyer is technical and the discovery happens on GitHub.
Most founders picture a fractional CTO as a part-time engineer. The actual job is different — and understanding that difference is how you get value from the engagement.