Denis Kozionov

Profile

I build AI products from idea to production. As the solo founder and engineer behind OctoFunnel, I connect full-stack engineering, product design, and an understanding of how customers run their businesses. Seeking an AI Product Engineer, Product Engineer, or Founding Engineer role. Open to remote work and relocation

Experience

Previously Kozyon / MetaFunnels · Sole developer

• Built and operated OctoFunnel as its sole developer, owning full-stack engineering, UX/UI, technical operations, and partner relationships
• Evolved a PHP/MySQL funnel platform into an AI-oriented TypeScript product combining websites, funnels, CRM, course delivery, messaging, payments, and analytics
• Designed a tenant-scoped virtual filesystem shared by the built-in AI agent, MCP-connected agents, and the visual editor over canonical business data
• Implemented contextual playbooks, server-side validation, revision-aware writes, restorable checkpoints, and durable execution with cancellation fencing
• The September 8–October 7, 2026 audit recorded 39,592 workspace tool calls across the built-in AI agent and MCP, covering 115 projects and 8,608 successful modification calls in the provisional customer cohort
• Served 1,000+ platform customers over the product’s lifetime. Customers generated approximately $32M in combined sales through its funnels since 2022; the largest reported case accounts for approximately $3.75M of that total
• Built a platform whose client installations have managed an estimated ~5 million contact records over their lifetime (upper end of a 3–5M estimate); 2,087,071 records were verified across 187 client installations
• Built the platform supporting a marketplace-training business with approximately $3.75M in recorded purchase value (USD equivalent), 10,322 purchase records, and 687,104 CRM contact records
• Built a network of approximately 30 sales partners around a revenue-share model and translated partner feedback into product improvements

Technical skills

Current: TypeScript · React · Node.js / Hono · PostgreSQL / Drizzle · Redis · MCP · Vite · Tailwind CSS · Vitest · Playwright

AI engineering: Tool use, agent context, structured resources, workflow automation, checkpoints, durable execution. AI APIs since 2023; two years building AI agents

Development tools: Claude Code, Codex. Legacy: PHP, MySQL, JavaScript, jQuery

Product & commercial experience

Product discovery, interface design, end-to-end delivery, customer workflows, partner distribution, and direct feedback from customers and sales partners

Availability & evidence

English C1 · Based in Bali · Scheduling window 07:00–20:00 UTC+8 · Open to relocation

Portfolio & three-minute demo · AI agent architecture · Verified customer case