Available for freelance

Mateusz
Mańczak

Freelance Developer

I'm a professional freelance developer specializing in Elixir and TypeScript. I help startups and product teams build reliable, well-crafted software.

From fault-tolerant backends and real-time systems in Elixir/Phoenix, to modern full-stack web apps with React and Next.js — I deliver clean, maintainable code that scales.

Elixir Phoenix TypeScript React Next.js Node.js PostgreSQL
Mateusz Mańczak

Projects

A few things I've built.

Notecal productivity app

Notecal

Full-stack productivity app with task management, calendar, and rich text notes.

React Next.js Node.js
View code →
Meetingrid meeting scheduler

Meetingrid

Meeting scheduler to find the best time for group meetings, built with Elixir/Phoenix.

Elixir Phoenix
View code →
Banadoro pomodoro timer

Banadoro

Pomodoro timer with timed work sessions and breaks. Built with Next.js.

Next.js React
View code →

Get in touch

I work exclusively through Upwork. Send me a message there and let's talk about what you're building.