Andrii

Andrii Maksymov
Frontend Developer
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Wrocław, Poland LinkedIn Telegram

Summary
Frontend Developer with 2 years of commercial experience building production-grade UI in React
and TypeScript for a production-scale iGaming platform. Delivered PostHog analytics instrumentation
across registration and deposit funnels, enhanced deposit flow UX with advanced payment states and
alternative payment method fallback. Strong background in React ecosystem, component architecture, and
cross-repository development.

Skills
Frontend:
React, TypeScript, JavaScript, Redux, WebSockets, HTML5, CSS3, SCSS, TailwindCSS, Storybook, PropTypes,
Vite, Webpack, Figma
Testing:
Unit Testing (Jest)
Analytics:
PostHog (Event Tracking / Funnels / User Analytics)
Tools:
Git, GitLab, GitHub, VS Code, WebStorm, ESLint, Prettier, Husky, SonarQube, Postman, PgAdmin 4, Slack, Claude
Code

Languages
English Polish Ukrainian
B2 B1 Native

Experience
TenThousand Remote
Junior Software Engineer June 2024 - May 2026
Responsibilities:
• Developing and maintaining UI features for a production-scale iGaming platform using React, TypeScript,
and SCSS
• Working with REST APIs and WebSocket connections for real-time data synchronization
• Writing unit tests with Jest and documenting components with Storybook
• Contributing to shared internal UI libraries across multiple repositories, publishing packages via Nexus
registry
• Maintaining code quality standards through SonarQube quality gates and GitLab CI/CD pipelines
• Participating in code reviews, Agile sprint planning and Kanban workflows, task estimation, and contributing
to internal developer documentation
Achievements:
• Delivered PostHog analytics coverage across registration and deposit funnels from scratch, enabling product
team to track 10+ key user events and identify drop-off points for the first time
• Implemented Google OAuth and multi-step registration UI, ensuring correct post-auth redirects for 100% of
sign-in and sign-up scenarios
• Refactored mobile scroll architecture to document-level, unlocking native browser URL bar and navigation
bar auto-collapse on scroll, recovering up to 10% of visible screen space for mobile users
• Enhanced deposit flow UX with real-time timers, advanced payment states, and alternative payment method
fallback on transaction failures, reducing user drop-off at critical payment steps
• Increased unit test coverage to ~80% by writing Jest tests across critical frontend components, tracked via
SonarQube
• Migrated codebase from ~20% to ~70% TypeScript coverage and refactored complex components to meet
SonarQube cognitive complexity gates, unblocking CI pipeline for the team
• Implemented FreeBet display logic and availability states within the betting interface, integrated with
real-time WebSocket state updates

Education
Wrocławska Akademia Biznesu w Naukach Stosowanych Engineer's degree
Software Engineering October 2024 - Present