Dima Hrebeniuk

Product-focused full-stack engineer

I build complete products end to end - from interface design and frontend to backend, architecture, and deployment.

Thanks to my UX background, I turn complex systems into something clear and easy to use.

Dima photo

Projects

Product Engineer, UI/UX 2020 - now

Moni, Moni Research

React Nodejs GCP/Kubernetes PostgreSQL Vector RAG AI

Built AI pipelines that score 60K+ projects and process 210K+ tweets per month. Fine-tuned local Gemma models and implemented RAG using PostgreSQL with pgvector. Built the full-stack implementation of dynamic feed and AI chat. Developed real-time detection and analysis of events and narratives across X/Twitter.

Founder 2025 - now

Timecoder

Vue Bun Elysia AI SDK

My own startup for generating video timestamps in seconds. Designed and developed the entire product, including UX, frontend and backend.

UI/UX Designer 2020 - 2021

BWN

Designed interfaces and UX for Ukrainian e-government services across web and mobile platforms.

2021 - 2024

Ukrainian Students for Freedom

Organized 200+ attendee events with Students for Liberty, promoting freedom and liberty-oriented policy in Ukraine.

Other

Knuckle-Duster

An experiment: Made a game over a couple of evenings based on my friend’s original board game.

Codex Room

Real-time collaborative Codex session with shared prompt editing.

Nlk-term

Minimal terminal with agents in mind.

Next Up 2

Fork of Next Up — shows your current event in the GNOME bar.

MinimalPay

Minimal crypto payment service. Originally built for Timecoder, with plans to open-source it.

Have an idea?

If you have an idea and think I can help, feel free to reach out!

Crypto