Denys Ostrovskyi

I design it.I build it.I ship it.

I'm a designer and full-stack developer from Odesa, Ukraine. One person covers the interface, the code and the release, so a small team gets a finished product without hiring three people.

Things I built

Each of these I designed and coded myself, from the first sketch to the running product.

Velidee landing page: a field of idea chips turning into a structured brief

Velidee

A web app for teams, in closed beta

People drop ideas into a shared field and see each other's edits live. Velidee then turns the field into a structured brief, plan or summary.

My part
Product, brand, interface and all the code
Built with
Next.js, TypeScript, PostgreSQL, real-time sync, LLM API
Includes
Sign-in, invites, email, image attachments, PDF and Markdown export
Visit velidee.com
Mealbox online shop catalogue with bread and herbs

Mealbox

An online shop for a family farm, live

The farm sold through an old WordPress site. I replaced it with a fast shop that has product variants, a cart, customer accounts and a separate admin panel for orders and stock.

My part
Design system, storefront, admin panel, backend, deployment
Built with
Next.js, TypeScript, Tailwind CSS, Node.js, PostgreSQL, Docker
Visit the shop
Ixa browser window: a vertical sidebar with pinned sites, tabs, a folder and two AI agent tasks, next to an open web page

Ixa

A desktop web browser, in development

A Chromium-based browser with a vertical sidebar, spaces with their own colours and profiles, pinned tabs and folders. I use it every day as my main browser.

My part
Interface design, the Electron prototype, the native C++ interface
Built with
Chromium, C++, Electron, JavaScript

Tools for AI assistants

Six MCP servers that let an AI assistant use real services: mail, banking data, stock photos, vector images and icon search. Three run on a server behind HTTPS with token access.

Desktop music player

An Electron app that plays Spotify and SoundCloud through one audio engine, with one queue, one volume control and a combined list of liked songs.

Agent fleet gateway

A service that lets one AI agent start other agents on several machines, follow their progress and collect the results.

Monthly content for four brands

Every month I design the Instagram posts, stories and Facebook covers for four Ukrainian consumer brands, working from each brand's content plan and style guide.

How I work

I write code with AI coding agents and check their output myself, which is why one person can deliver this much. You get the speed, and a human who answers for the result.

  1. We agree on the scopeI ask questions first, then send a short plan with milestones and a price.
  2. You see it working earlyI send a live preview link every few days, so you can react to the real thing.
  3. Every change is reviewedImportant code goes through tests and a second, independent review before release.
  4. You own everythingThe code lives in your repository, typed and documented, so another developer can pick it up.

Tell me what you need built.

Send a few lines about the project. I reply within a day with questions and a clear plan. A small paid first task is a good way to try working together.