Frontend Developer - React & TypeScript

Andrii Maksymov

I build fast, tested, production-grade web interfaces.

2 years of commercial experience shipping UI for a production-scale iGaming platform. Based in Wrocław, Poland - open to remote opportunities.

tests passing
types strict
CI green

View my work Get in touch

React
TypeScript
JavaScript
Next.js
Redux
RTK Query
SCSS
Tailwind CSS
Storybook
Vite
Webpack
WebSockets

Jest
PostHog
GitLab CI/CD
GitHub Actions
Docker
PostgreSQL
Oracle Cloud
Azure
ESLint
SonarQube
Husky
Figma
Claude Code

about

Hey, I'm Andrew - a frontend developer who cares about the parts users never see: type safety, test coverage, and code that's still readable six months later.

I spent two years building and maintaining UI for a production-scale iGaming platform - real users, real money flows, real consequences when something breaks. That environment taught me to write declarative, composable, predictable code and to treat quality gates as a feature, not a chore.

I'm currently pursuing a Software Engineering degree in Wrocław.

AI-assisted development is part of my daily workflow - Claude Code and Codex - backed by three Anthropic certifications.

English C1 · Polish B1 · Ukrainian native

experience

Junior Software Engineer

Jun 2024 - May 2026

TenThousand · iGaming platform · Remote

Built and maintained UI features for a production-scale iGaming platform with React, TypeScript and SCSS.

REST APIs and WebSocket connections for real-time data synchronization
Unit tests with Jest, components documented in Storybook
Shared internal UI libraries across multiple repositories, published via Nexus
Code quality through SonarQube quality gates and GitLab CI/CD pipelines
Code reviews, sprint planning, task estimation and internal developer docs

React
TypeScript
SCSS
Redux
WebSockets
Jest
Storybook
GitLab CI/CD
SonarQube

what I've shipped

achievements.diff

Built PostHog product analytics from scratch across registration and deposit funnels - 10+ key user events, first-ever visibility into drop-off points
Migrated a production codebase from ~20% to ~70% TypeScript coverage, unblocking CI quality gates for the team
Raised unit test coverage to ~80% across critical frontend components (Jest + SonarQube)
Refactored mobile scroll architecture - recovering up to 10% of visible screen space on mobile
Implemented Google OAuth & multi-step registration with correct redirects across 100% of auth scenarios
Enhanced deposit-flow UX with real-time timers and alternative payment-method fallback on transaction failures

featured project

Cooking Assistant

live

A free cookbook for the home kitchen: keep recipes in one place, plan menus for the week, track your pantry and turn whatever is missing into a shopping list. In four languages.

Started as a duo project with Milana (opens in a new tab) - later I rebuilt it on my own: full redesign, deep refactor, complete test suite and end-to-end CI/CD.

2,800+ tests in 500+ files: Jest on both sides, Playwright e2e and a real-Postgres suite - 95%+ coverage, 80% gate in CI
15+ CI jobs on every PR: Prettier, ESLint, tsc, SonarJS, Stylelint, Jest, production build, e2e and database suites
Migrated from Vite to the Next.js App Router: server-rendered pages and rich link previews
Tag-driven deploys to a self-hosted ARM server on Oracle Cloud: arm64 images in GHCR, health checks, automatic rollback
JWT auth in httpOnly cookies, zod validation, nonce-based CSP, 10+ rate limiters