a
al3xb0

Aliaksei K.

@al3xb0

Fullstack Developer

Polônia
Bielorrusso, Inglês, Russo, Polonês
Algumas informações são exibidas no idioma inglês.
Sobre mim
Frontend-focused Full-Stack Developer with 3+ years of commercial experience building scalable web applications, real-time systems, and maintainable frontend architecture. My personal page: https://aliaksei-konyshau.vercel.app/... Saiba mais

Habilidades

a
al3xb0
Aliaksei K.
offline • 
Tempo médio de resposta: 1 hora

Conheça meus serviços

Aplicações Web Full Stack
I will create website or application for you from zero
A partir deUS$ 50 /projetoMais detalhes
Correções de bugs
I will fix bug for you asap
A partir deUS$ 25 /projetoMais detalhes

Portfólio

Experiência profissional

Upwork

Full-Stack Developer

Upwork • Freelance

Dec 2025 - May 2026 • 5 mos

AI video generation platform, 200+ active users/hour. • Shipped new features autonomously in an existing Next.js + TypeScript codebase within a remote product team. • Diagnosed and fixed video/image caching bugs causing production rendering failures across async pipelines. • Integrated third-party AI APIs and async video processing workflows with reliable job queuing.

AmRest

Full-Stack Developer

AmRest • Período integral

Sep 2024 - Oct 2025 • 1 yr 1 mo

Internal SPA for Amrest’s delivery ops on Azure; 500–600 couriers, up to 9,000 orders/day across Poland. • Built per-restaurant order tracking and courier dashboards (React, TypeScript, Mapbox). • Implemented real-time courier location tracking in a microfrontend architecture on Azure — geolocation streams synced with live order state. • Integrated backend APIs for order sync and dispatching, handling concurrent updates without stale UI state.

CoinTrade

Full-stack Developer

CoinTrade • Período integral

Aug 2023 - Aug 2024 • 1 yr

B2B/B2C crypto payment platform, 20+ coins, invoicing and multi-wallet accounting. • Built merchant invoice and multi-wallet UI (React, TypeScript); integrated real-time payment updates via WebSockets. • Redesigned high drop-off multi-step payment flow — identified friction points and rebuilt UX, directly reducing payment failures. • Developed backend API layer with error handling and retry logic for payment endpoints (Node.js).