Building products end to end — from database to deploy.

I'm Denys Bilyi, a full stack developer working across the whole stack — React, Next.js, Node.js, Python, PostgreSQL, MongoDB, and everything in between. I care about shipping products that are solid end to end, not just on the surface.

React Next.js TypeScript Node.js Python PostgreSQL MongoDB Vite

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Focus

Full stack development — APIs, databases, web and mobile, deployed and running in production.

Approach

Clean, maintainable code across the whole stack — built for the people who'll read it next, not just the compiler.

Goal

Joining a team that ships things end to end and treats craft as a professional standard.

Projects

Work I've designed, built, and shipped from the ground up.

All projects →

Movflix

Film, TV, and anime discovery with watch tracking and personalised recommendations. Full anime section via MyAnimeList, Clerk auth, and four languages.

React 18 TypeScript Redux Toolkit

Live Code Case study →

Music Space

Real-time recommendations streamed via SSE from Spotify, Deezer, and Last.fm. Full Spotify library management, Super Mix blender, Internet Radio, and charts. React + FastAPI full-stack.

React Router v7 FastAPI SSE

Live Code Case study →

Soreni

Android

A full-featured Guild Wars 2 companion app for Android — legendary crafting planner with BFS recipe resolution, world boss timers, live account dashboard, trading post, WvW, and PvP.

React Native TypeScript GW2 API

APK Code Case study →

Offload

Android & iOS

A minimal GTD app for Android and iOS — capture everything, clarify it once, and work from trusted lists. Full GTD workflow: Inbox, Projects, Next Actions, Waiting For, Weekly Review, and more.

React Native TypeScript Zustand

In development Code Case study →

Imperium

Interactive animated map covering 3,000+ years of political history. React + deck.gl client, Node.js + SQLite server, Python data pipeline producing 5,427 yearly GeoJSON snapshots.

React 18 deck.gl Node.js SQLite Python

In development Case study →

Get in touch

Open to full-time roles, freelance work, or a conversation about a project you're thinking through. Fill out the form and I'll get back to you.