Andrei Biareshchanka

Andrei Biareshchanka

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Senior Frontend Developer | React & TypeScript & Next.js | 6+ yrs | AI Automation | Open to Work in EU
Warszawa, Województwo mazowieckie, Poland
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Jobs verified_user 0% verified
  • Andersen Lab
    Frontend Web Developer React, Next JS
    Andersen Lab
    Sep 2024 - Current (1 year 10 months)
    Developed responsive, high-performance front-end features using Next.js and React, improving user interaction and load times. Initialized projects from scratch, setting up scalable folder structures and configurations for long-term maintainability. Integrated third-party APIs, ensuring robust data flow and system interoperability. Wrote unit tests with React Testing Library and Jest. Collaborated with team to refine UX and code quality, reducing technical debt. Estimated tasks during sprint planning, ensuring accurate delivery timelines.
  • EPAM Systems
    Full Stack Engineer
    EPAM Systems
    Feb 2021 - Sep 2024 (3 years 8 months)
    Developed and Implemented Three React Applications Using TypeScript and RESTful APIs: Created robust applications for generating new invitation codes and delivering them via SMS and email. • Adaptive Email Implementation: Designed and implemented adaptive emails for multiple services, supporting different light and dark themes to enhance user experience across various devices and settings. • High Test Coverage: Ensured quality and reliability by achieving over 80% test coverage. • Dynamic Forms and API Integration: Implemented dynamic forms with intermediate API requests to provide real-time data and enhance user interaction. • Dynamic Tables: Developed dynamic tables that allow users to drill down into detailed views and edit extensive dat
  • EPAM Systems
    Frontend Web Developer
    EPAM Systems
    Jan 2020 - Feb 2021 (1 year 2 months)
Education verified_user 0% verified
  • R
    Frontend
    RS School course
    Jan 2020 - Dec 2021 (2 years)
  • I
    Programming
    ITClass course
    Jan 2019 - Dec 2019 (1 year)
  • M
    Mozyr State Pedagogical University named after I.P.Shamyakin
    Mozyr State Pedagogical University named after IPShamyakin
    Jan 2010 - Dec 2013 (4 years)
Projects (professional or personal) verified_user 0% verified
  • T
    TRIP-AI — Travel Pricing System
    Nov 2025 - Current (8 months)
    Legacy frontend refactoring of an AI-powered travel pricing optimization system. Migrated from Redux to Redux Toolkit, upgraded to React 19 + Vite, implemented table virtualization for large datasets. Implemented Azure AD (MSAL) authentication with role-based access control. Stack: React 19, TypeScript, Redux Toolkit, MUI, Vite, Azure AD
  • W
    Wayflyer — FinTech Headless SDK
    Mar 2025 - Sep 2025 (7 months)
    Built a TypeScript Headless SDK with a full UI component library for a FinTech funding platform serving e-commerce companies. Set up CI/CD with semantic release automation (Changesets, GitHub Actions, npm publishing). Integrated Stripe and Plaid APIs for payment processing and bank account verification. Stack: TypeScript, React, Storybook, Vite, Stripe API, Plaid API, Chromatic, Vitest, MSW
  • N
    NDA - Enterprise Platform (Mining & Cement Industry)
    Sep 2024 - Mar 2025 (7 months)
    Enterprise software platform for a global industrial technology provider (under NDA). The system optimizes equipment selection based on customer-specific parameters and technical requirements. — Initialized project from scratch: Next.js App Router, folder architecture, build tooling, linting, and testing infrastructure. — Developed complex forms with calculated outputs and data-driven charts based on backend responses. — Collaborated with backend team on REST API contracts via Swagger; worked with mock data during API preparation. — Referenced legacy codebase to preserve existing business formulas and calculations. Stack: TypeScript, React, Next.js (App Router), Jest, React Testing Library, REST API, Swagger, Vercel, Figma