Available

Indie app & web developer

Hi, I’m Anton. I turn ideas into apps people actually use.

150+ projects delivered✳5.0★ across 83 reviews✳5,200+ hours✳Top Rated on Upwork✳

Indie developer from Kyiv. 11+ years of building for web and mobile.

Kyiv, Ukraine —

Idea, code, App Store, repeat

My expertise: AI that ships, mobile done full-cycle, and web from way back

Mobile

  • React Native / Expo
  • TypeScript
  • Swift / SwiftUI
  • RevenueCat & paywalls
  • App Store / ASO

AI & automation

  • LLM integrations (OpenAI, Claude)
  • AI voice agents
  • RAG & embeddings
  • Speech: Whisper / TTS
  • Workflow automations

Web & backend

  • Next.js / React
  • Node.js
  • Supabase / PostgreSQL
  • REST & webhooks
  • Vercel / CI

Product & delivery

  • Figma → working product
  • Analytics & A/B
  • Payments: Stripe / IAP
  • 11+ years freelancing
  • Top Rated on Upwork

LLM integrations & AI voice agents · React Native / Expo · TypeScript · Supabase · RevenueCat · Next.js — from the first sketch to App Store review.

Photo — coming soon

Spheres I’ve shipped for

  • Food & recipes
  • Health & habits
  • Productivity
  • E-commerce
  • EdTech
  • Voice AI & support
  • AI companions
  • Video & creators
Have an idea?
Start a project→

What I do

Web
apps

Dashboards, SaaS and platforms in Next.js / React — typed, fast, and ready for real users.

Mobile
apps

iOS apps in React Native / Expo and Swift — from the first screen to App Store review.

AI
inside

LLM integrations, voice agents and automations that do real work — not demos.

Full
cycle

Idea, design, code, launch, growth — one person owning the whole path, no hand-offs.

What I can do for you

(Pick what you need)

New builds

Build a new product

Sketch or Figma to a live app — scoping, design, code and App Store submission. One engineer, no hand-offs.

  • Scoping
  • UI / UX
  • iOS + web
  • Launch

AI inside

AI & automation

LLM features, voice agents and automations — not demos.

Rescue & audit

Fix & stabilise an app

Leaking auth, broken payments, brittle schemas — made production-ready.

Team augmentation

Join your team

A senior contractor who ships from day one.

Launch & grow

Ship, measure, grow

Paywalls, ASO, analytics and A/B — beyond launch.

Things I’m shipping.

(Apps)

iOS appLive

FOODIE

A recipe journal with AI extraction — send it a Reel, get a clean, cookable card.

  • React Native
  • TypeScript
  • Supabase
  • Gemini
foodiejournal.app ↗
iOS appIn the works

Ringo

An AI voice agent that calls restaurants and books a table for you.

  • Expo
  • LiveKit
  • Gemini Live
  • SIP
iOS appLive

Nothing

A focus app that blocks distractions. On purpose, it does very little.

  • React Native
  • Swift
  • SQLite
trynothing.app ↗
WebsiteLive

Soborna Ukraine

The web home of a foundation supporting children of fallen Ukrainian defenders — Next.js on Sanity, fully editable by the team.

  • Next.js
  • Sanity CMS
  • TypeScript
sobornaukraine.org ↗
Web appLive🔒 Under NDA

Confidential project

A voice-AI support platform for a client I can't name. The name is theirs — the engineering was mine.

  • Next.js
  • PostgreSQL
  • LLM + voice

Kind words.

(5.0★ · 83 reviews on Upwork ↗)
★★★★★
$20K+ project
He delivered high-quality React development combined with great design skills, creating a clean, modern, and intuitive user experience. His attention to detail, communication, and reliability were exceptional throughout the entire collaboration.
Felix Faerberffaerber ltd · SaaS frontend · 395 hrs
★★★★★
I've been using freelancers for years and worked with a lot of devs. Anton is by far one of the best I've worked with.
Ole IngemannPRAESTO COI AS · Hugo & JS engineering
★★★★★
Great communication, clean code and very responsive. Thanks!
Michael JastramFormal Mind GmbH · JavaScript library
★★★★★
$58K+ · 3 years
Anton's blend of technical skill, creativity, and collaboration makes him a valuable asset to any project. I strongly recommend him and look forward to future collaborations.
Neal DeBuhr3-year engagement · 2,347 hrs
★★★★★
Great — highly recommended.
John CourtEnterprise Systems UK · Website redesign
★★★★★
Highly recommend working with Anton! Impeccable work, professional interaction… We were delighted every single time!
Upwork clientB2B SaaS redesign
★★★★★
Anton is a very good professional. He understands the scope and tech requirements — and he delivers on time.
Christophe Legrandlocal ocean · Frontend build
★★★★★
$11K+ project
Anton is an excellent developer with a masterful grasp of Front-End development. He's a pleasure to work with, and I highly recommend taking the opportunity to hire him.
Aaron GazzolaHDS Associates · Medical LLM platform · 231 hrs
★★★★★
Solid communicator, got the work done when he said he would and had clean code. Highly recommended.
Jevin MaltaisQuickjack Solutions · Static site work
★★★★★
Hire Anton! You will be satisfied! He was on time, his estimation for the job was on spot and he absolutely nailed it technically.
Upwork clientFrontend build
★★★★★
Excellent work. A great freelancer who delivers perfect work every time.
Stuart AtkinsonRepeat client
★★★★★
Anton completed his work well, on time and in a professional way — all the changes we requested were made quickly and precisely.
Alina GamzaevaGrahamstown Ltd · Frontend delivery
★★★★★
Very professional attitude, delivered very appealing results in terms of UI/UX. Basically always hit that nail.
Upwork clientProduct website · 109 hrs
★★★★★
Incredible work! Great attention to detail and excellent communication!
Upwork clientResponsive frontend

(My story)

From physics to products.

I started with a physics degree and a suspicion that I liked building things more than measuring them. Websites came first, then a decade of client work for teams of every size. Somewhere along the way I fell in love with making my own products — and never quite recovered. Home is Kyiv: long walks with my two dogs and a lot of cooking, which is exactly how FOODIE was born. I like making useful things, carefully.

Kyiv 🇺🇦2 dogsCooks a lotPhysics degree
Drop a photo — you, Kyiv, or the dogs
that’s me →

(Where I’m heading)

Doubling down on AI voice agents and small, delightful apps — open to a long-term contract with a team that ships.

Sounds like your team? Email me