A working product. Real customers.
Product Engineer
I’m Denis Kozionov, founder and sole engineer of OctoFunnel. I connect product decisions, interface design and engineering, work directly with customers, and own the result after launch.
My experience
I design and ship features from the customer workflow through the interface, backend and production operations.
I built a shared data model for the visual editor and AI agent. Customers can continue editing an agent’s changes in the interface they already use.
Hundreds of product actions are exposed through a virtual filesystem and nine core operations. Contextual playbooks guide agents through project resources.
I work on integrations, load and customer feedback. I developed infrastructure for hundreds of thousands of contacts and bulk messaging, and adapted hosting and routing for multiple regions.
Built at OctoFunnel
The built-in agent and external agents connected through MCP use the same websites, funnels and courses as the visual editor. Server-side validation, checkpoints and interruption handling support the complete change lifecycle.
8 September – 7 October 2026
The product I built
Websites, funnels, CRM, messaging, courses and an AI agent in one platform. Building and operating the product since 2019.
AI workspace
Customer case
$3.75M
in sales at the platform’s largest customer
687 104 CRM contacts
10 322 purchase records
I built and operated the platform infrastructure for Vitaly Okunev’s training business: the funnel, CRM, messaging and course delivery.
Working together
Denis Kozionov
Product Engineer
Bali, Indonesia · UTC+8
Open to employer-sponsored relocation
Full-time · English C1