websites built to order · Ukraine

Yaroslav
Bilyavskyi.

>

I build websites and web apps for business — from the first conversation to launch. You know the price and the deadline before work starts, and the source code stays yours.

Yaroslav Bilyavskyi — Full-Stack Developer
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01

Services

What you can order, what it costs and how long it takes.

Landing page

from €400
1–2 weeks

One page with one job: getting the visitor to act. Suited to a product, a service or an event, when you need to launch quickly and start collecting enquiries.

  • Design and build from scratch, not a template
  • Works down to a phone screen
  • Contact form with email notifications
  • Basic SEO: titles, descriptions, structured data
  • Deployed and connected to your domain
Discuss a landing page →

Web application

from €1200
from 4 weeks

When a page is not enough: user accounts, saved data, business logic. Calculators, dashboards, catalogues, booking and internal tools.

  • Sign-up, login and user accounts
  • Storing data and working with REST APIs
  • Interactive interfaces: boards, filters, calculators
  • Backend on Node.js or Python when needed
  • Deployment and full handover of the source code
Discuss an application →
  1. 01

    You write

    Tell me what you need. I ask about the goal, the audience and examples you like. Free and with no obligation.

  2. 02

    Fixed estimate

    You get the scope, the price and the deadline in writing. Nothing starts until you agree to them.

  3. 03

    Work in the open

    You see the result as it is built, not only at the end. Two rounds of revisions are included in the price.

  4. 04

    Launch

    I deploy the site, connect your domain and hand everything over. Fixes are free for 30 days after launch.

02

Work

Everything below is live right now — click to open.

Screenshot of the FreightIQ project

FreightIQ

own product

A haulier sees in a minute whether a trip is worth taking: the calculator works out fuel, tolls across 28 countries and the real delivery time under EU 561/2006 driving rules. My own product — from the idea and domain logic through to launch.

  • HTML
  • CSS
  • JavaScript
Read the case study →
Screenshot of the Join app

Join

internal tool

A tool for a team: tasks on a board you drag with the mouse, your own contacts and categories, sign-in with a personal account. The same thing a company needs when work has to be tracked in-house rather than in a messenger.

  • JavaScript
  • REST API
  • CSS
Read the case study →
Screenshot of the Pokédex app

Pokédex

API catalogue

A catalogue with search, filters and load-as-you-scroll that pulls its data from an outside service. A site can just as well pull prices from a warehouse, products from a CRM or statuses from a courier.

  • JavaScript
  • REST API
  • HTML
Read the case study →
Screenshot of the BestellApp food ordering app

BestellApp

online ordering

Ordering food online: menu, a cart that totals the order and delivery as you go, checkout in a few clicks. The backbone of any shop or delivery service — from picking an item to confirming the order.

  • JavaScript
  • HTML
  • CSS
Read the case study →
Screenshot of the Zerno landing page

Zerno

landing

A single-page site for a coffee shop: show the atmosphere, the menu and the address so that someone actually wants to come in. Custom illustrations instead of stock photos, opens fast on a phone. An example of what the “Landing page” option gets you.

  • HTML
  • CSS
  • JavaScript
Read the case study →

On the side I'm building Nexoria Agent Studio — a web dashboard for running a team of AI agents (task kanban, chat, automatic project start).

03

Stack

What it is all built on, if that matters to you. Written by hand — no builders, no templates.

frontend

  • HTML 01
  • CSS 02
  • JavaScript 03
  • TypeScript 04
  • React 05
  • Angular 06

backend

  • Node.js 07
  • Express 08
  • Python 09
  • REST API 10

tools

  • Git 11
  • AI agents 12
04

Questions

What people usually ask before we start.

What will my site actually cost?

The prices in the services block are a floor: from €400 for a landing page, from €1200 for a web app. The final figure depends on how many screens there are and how complex the logic is.

You get the exact number in writing after a short conversation, before any work begins. The estimate is free and commits you to nothing.

How does payment work?

50% upfront, the rest on delivery. The deposit reserves time in my schedule and covers the start of the work; you pay the second half once the project is finished and you have accepted it.

Two rounds of revisions and 30 days of fixes after launch are already included in the price — there is nothing extra to pay for those.

What if I do not like the result?

You see the work as it happens, not only at the end, so any mismatch shows up early while it is still cheap to fix.

Two rounds of revisions are included in the price. After launch I fix things free for 30 days.

How long does it take?

A landing page takes 1–2 weeks, a web app from 4. The clock starts not when we agree, but when I have your texts, images and access.

If the material takes a while to gather, the deadline moves — and I tell you upfront, not after the fact.

Who pays for the domain and hosting?

You register the domain in your own name, so it stays yours and you never depend on your developer. I help with the setup.

A landing page usually fits on a free hosting plan. If a project needs a paid one, I say so before we start and you pay directly — no markup through me.

Will I be able to change things myself later?

Small edits in the first 30 days after launch are on me. After that, by arrangement — usually quick and inexpensive.

If editing the text yourself matters to you, say so at the estimate stage: we then build in an admin panel, which affects both price and timeline.

Will the site work properly on a phone?

Yes, and it is not a paid extra. Most of your visitors will arrive on a phone, so adapting to small screens is part of the base work.

Can you work on a site that already exists?

Write to me and I will look at the state of the code. If it can be built on, I will take the work.

If it cannot, I will tell you honestly that starting over will be faster and cheaper than patching someone else's work.

Do I get the source code?

Yes, in full and at no extra cost. After launch you receive every project file and can hand it to any other developer.

05

Got a project?
Let's build it.

Tell me what you need — I reply with a price and a deadline. The first estimate is free and commits you to nothing.

Mukachevo --:-- · · working hours fully overlap with CET