Олексій

ALEKSEY VATMAN
Senior Frontend Developer | React, TypeScript, Next.js

Zhytomyr, Ukraine | [open contact info](look above in the "contact info" section) | Telegram: @avatman | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

SUMMARY
Senior Frontend Developer with 8 years building React/TypeScript applications for enterprise clients like Panasonic,
Morning Star, and UFC. I help organizations scale UI systems and deliver high-load features - including ERP blueprints and
AI-driven chat interfaces - while mentoring teams to ship production-ready code faster.

EXPERIENCE
Abcloudz – Senior Frontend Developer (React/TypeScript)
Jul 2025 – April 2026

• Architected ERP system for a major US producer, building scalable React/TypeScript modules for inventory,
procurement, and reporting workflows.
• Implement complex data visualization and control interfaces (“blueprints”) using React, TypeScript, and TanStack tools
to ensure seamless user interaction.
• Drive key architectural decisions and mentor team members to ensure high standards of code quality and performance.

Limestone Digital – Frontend Developer (React/Drupal)
Dec 2022 – Jul 2025

• Led the frontend development of large-scale projects, including UI library creation and design system optimization.

Built a real-time AI chat interface using WebSocket and React Context API, handling concurrent user sessions and
• streaming responses with sub-second latency.
• Managed technical quality through rigorous code reviews and the implementation of comprehensive test suites.

DataMilk – Frontend Engineer
Oct 2021 – Oct 2022

• Built an AI-powered admin dashboard in Next.js, integrating API endpoints for model training workflows and real-time
inference monitoring.
• Built no-code experiment builder in React, enabling clients to A/B test landing pages without engineering support -
deployed 24 experiments in the first quarter.
• Optimized user experience components, resulting in measurable improvements to client conversion rates.

FFW Agency – Frontend Developer
Feb 2020 – Nov 2022

• Engineered high-load web solutions for UFC and Panasonic, optimizing React components to handle approx. 1 million
concurrent users during live events.
• Expertly navigated complex CMS theming and module development, maintaining high performance under substantial
load.

CreativeCraft – ReactJS Developer
Feb 2018 – Feb 2020

• Developed responsive UI and Progressive Web Apps (PWAs), focusing on modernization and refactoring legacy
implementations to meet current industry standards.

SKILLS

Core Frontend: React, Next.js, TypeScript, JavaScript, Vue, Angular

Styling & Build: CSS, Babel, Webpack

State & Data Management: ReactQuery (TanStack Query), Zustand, Context API, RxJS, TanStack Tables

Quality & Testing: Jest, Vitest, Cypress, Code Review

Infrastructure & DevOps: Docker, npm

AI & Real-Time: AI-Assisted Development (Cursor, Agents), WebSocket, n8n

System Architecture: Component Library Development, Design Systems, Headless CMS, High-load Optimization, API
Integration

LANGUAGES

Ukrainian: C2 (Native)

English: C1 (Professional working proficiency)