Full-Stack Developer
Poznan, Polanddebug duck

Aliaksei
Konyshau

Clear products, solid systems, no hand-waving.

Frontend-focused Full-Stack Developer with 3+ years of commercial experience building scalable web applications, real-time systems, and maintainable frontend architecture.

React, TypeScript, Next.js, and Node.js. Based in Poznan, open to Poland or remote.

Open Projects Download CV
developer.ts

Facts about me.

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About

I like making complex products feel clear.

Aliaksei Konyshau

Frontend-heavy full-stack

Curious, practical, and interested in the work itself.

Frontend-focused Full-Stack Developer experienced in building scalable web applications with React, TypeScript, Next.js, and Node.js.

Skilled in API integration, real-time systems, performance optimization, and maintainable frontend architecture.

Experience

3+ years commercial

Location

Poznan, Poland

Languages

ru / pl / en

Open to

Poland / remote

Experience

Professional Experience

Aug 2023 – Sep 2024

CoinWay Startup

Full-Stack Developer · Remote

B2B/B2C crypto payment platform — 20+ coins, invoicing and multi-wallet accounting.

  • Built merchant invoice and multi-wallet UI in React and TypeScript, with real-time payment updates over WebSockets.
  • Redesigned a high drop-off multi-step payment flow, directly reducing payment failures.
  • Developed a backend API layer with error handling and retry logic for payment endpoints (Node.js).

Oct 2024 – Oct 2025

Big Studio

Full-Stack Developer · Remote

Internal SPA for 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.
  • Integrated backend APIs for order sync and dispatching, handling concurrent updates without stale UI state.

Dec 2025 – May 2026

Freelance (Upwork)

Frontend Developer · Remote

AI video generation platform — 200+ active users/hour.

  • Shipped 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.
  • Integrated third-party AI APIs and async video processing workflows with reliable job queuing.
Projects

Selected work

ResumeFlow
ResumeFlow preview

Project 01

ResumeFlow

Local-first desktop app for tailoring resumes to job postings, with ATS scoring, keyword analysis, editing, and export handled fully offline.

Highlight

Rust backend for fast local analysis and a workflow that feels native instead of bolted-on.

ReactTypeScriptRustTauri 2
Code on GitHub
TypeRacer Clone
TypeRacer Clone preview

Project 02

TypeRacer Clone

Real-time multiplayer typing game with live progress sync, careful throttling, and no unnecessary per-keystroke database writes.

Highlight

Realtime updates stayed responsive without turning the backend into a write-amplified mess.

Next.js 16TypeScriptSupabaseZustand
Open Live Code on GitHub
R&M Dashboard
R&M Dashboard preview

Project 03

R&M Dashboard

Character dashboard with auth, row-level security, debounced search, favorites, and URL-synced pagination.

Highlight

Playful UI on top of a serious foundation: protected data, reliable state sync, and smoother browsing.

Next.jsTypeScriptSupabasePostgreSQL
Open Live Code on GitHub
Stack

Tech stack

The full toolkit I work with across the stack — pick a domain to inspect what runs inside it.

// tap a category to switch · swipe for more

user@aliaksei:~$ stack --show frontend

frameworks/

React.jsNext.js

state/

ZustandRedux ToolkitMobX

styling/

Tailwind CSSSCSS / SASSMaterial UIChakra UIBootstrap

bundlers/

ViteWebpack
user@aliaksei:~$
Education

Studies & languages

Oct 2021 – Feb 2025

Adam Mickiewicz University

Poznań, Poland

Bachelor of Computer Science

Certification

freeCodeCamp

Online

Certified Full-Stack Developer

Languages

RussianNative
PolishC1
EnglishB2
Contact

Let's talk.

Open to full-time roles, freelance work, and product teams in Poland or remote.

Send Email GitHub

GitHub

al3xb0

LinkedIn

aliaksei-konyshau

Aliaksei Konyshau
PrivacyNext.js portfolio on Vercel.