WORK

I take products from zero to production - product decisions, working code, and delivery in one person. Fifteen years of product management across ad tech, e-commerce, and SaaS, now with AI leverage: I ship the things I used to write specs for. FastAPI, Rails, React, Cloudflare Workers.

Available for

0-to-1 builds

You have a product idea and no team. I run fixed-scope discovery, then ship weekly increments to production - handover or ongoing. Product, code, and delivery in one contract.

Personal AI consulting

One-on-one, not a corporate workshop. I'm further down the Claude Code and agents road than most people in tech - I'll set up your environment, show you what's actually possible, and automate the things you still do by hand.

Show me the thing you'd say "I bet AI can't do that" about - and I'll prove you wrong.

ostap.senyuk@gmail.com - tell me what you're building.
co-founder / product · 2025-now · FastAPI, React, PWA

Wallet pass advertising and loyalty through Apple and Google Wallet. Three founders, no outside funding. I own product and write production code: the FastAPI backend alongside the lead engineer (~27% of commits) and the merchant frontend end-to-end - magic-link auth, observability, CI. First paying pilot live with a retail chain in Poland; accepted into WPP's startup accelerator, which puts Satori in front of three major agency networks.

paying pilot live WPP accelerator ~27% of backend commits merchant frontend: primary author
02

Ad tech consulting

consulting PM / delivery lead, via a software services firm · 2025-2026

Forecasting tool for a European ad tech platform: an 11-week fixed-scope pilot where I managed delivery of four ML prediction models into the production forecasting API, ZIP-level geo filtering, and an embeddings-based audience segment recommender. 13 production releases, every deliverable accepted.

DSP rescue for an APAC client: took over an at-risk build with broken client communication, restored trust with a structured cadence - daily async updates, weekly reports - and managed delivery of 12+ features: exchange integrations, pacing, dynamic CPM, multi-region infrastructure. Closed it with a retrospective across 681 tracked issues that gave leadership the real cost picture.

4 ML models in production 13 releases in 11 weeks 100% deliverables accepted 12+ features shipped
Client names withheld - happy to walk through details on a call.
solo build with user-zero · 2026 · Rails 8, SQLite, Docker

A film director friend was tracking funding deadlines in spreadsheets and missing them. We built Open Call together - she's user-zero, I'm the team. 108 manually verified film and art programs, saved-filter email subscriptions, two-stage deadline reminders. Self-hosted with Docker and a Cloudflare Tunnel. From idea to a live product, a few evenings at a time.

live in production 108 verified programs idea to launch, solo
open source · 2026 · Claude Code, markdown

The PM operating system I run my own work on: Claude Code plus structured markdown - briefs, status files, decision logs, skills that generate stakeholder updates. Dogfooded across founder work and client consulting at the same time, then extracted into a public framework. If you hire me, this is how your project gets run.

open source dogfooded daily
05

Coach site + AI assistant

engagement in progress · 2026 · Astro, Cloudflare Pages + Workers

Current freelance engagement: rebuilding a solo coach's website and adding an AI assistant. Discovery and competitor research done, stack decided, build underway.

in progress
you're looking at it · 2025-now · Cloudflare Worker, D1, KV

The chat bubble on this page is a real product, not an embed: a Cloudflare Worker with SSE streaming, D1 for conversations, KV rate limiting, and Turnstile against abuse. Ask it about my work - it knows.

live on this page built and operated solo

Also shipped

puch math-practice web app for my daughter. Rails, pedagogy-first, no shame mechanics.
vulcan-notify reverse-engineered my kids' school's undocumented API into a CLI feeding our home automation.
cc-tools my personal Claude Code plugin - writing voice, daily notes, plan review. The daily driver.
pidcast privacy-first local podcast transcription and LLM analysis.
homelab Proxmox on a 2011 MacBook Pro - media, home automation, and app hosting. 18 months in production.
retroscope retrospective reports for Claude Code sessions - what shipped, what stalled.

Building something from zero? ostap.senyuk@gmail.com · LinkedIn