Skip to content

Hi, my name isRoman Pylypchuk.I turn ideas into full-stack web products.

I'm a full-stack developer based in Sydney who gets a kick out of building things that work. There's something satisfying about taking a rough idea, working through the hard parts, and ending up with a product that actually does what it's supposed to.

I mostly work in the JavaScript ecosystem: React and Next.js on the front end, Node.js on the back end.

Résumé

01.About

Portrait of Roman Pylypchuk

Hello! My name is Roman, and I enjoy building things that work on the internet. My interest in web development started in 2022 when I completed a bootcamp and learned that I really liked solving problems and shipping things that actually matter.

Fast-forward to today, and I've had the privilege of working at a product company, a design studio, and launching solo freelance projects. I've built features for products with real users, worked in small teams on complex problems, and learned what it takes to ship something people care about. Right now I'm studying at TAFE NSW while taking on freelance work.

My main focus these days is building full-stack web products with clean code and attention to detail. I'm particularly drawn to real-time systems and projects that involve integrating AI APIs. I work mostly with React, Next.js, Node.js, and MongoDB/PostgreSQL.

Sydney, NSW

Tech Stack

  • JavaScript
  • CSS
  • Next.js
  • WebSocket
  • Git
  • TypeScript
  • Node.js
  • Tailwind CSS
  • MongoDB
  • GitHub
  • HTML
  • React
  • REST APIs
  • PostgreSQL

02.Where I've worked

Back End Developer @ Freelance

Mar 2025 — Present

Worked on freelance backend projects: building real-time data pipelines, designing APIs, and setting up automated notification systems. Handled everything from data modeling to deployment and production monitoring.

  • Built RESTful APIs and real-time WebSocket integrations for processing live data streams.
  • Implemented backend data flows: fetching, processing, and storing live data in MongoDB.
  • Set up automated Slack notifications that improved response times for end users.
  • Integrated third-party APIs and services, including OpenAI and Gemini, into production workflows.

03.Some things I've built

  • Featured project

    Session-Based Balance Tracker

    2025

    A full-stack app for tracking financial sessions with real-time balance calculations. Built with secure JWT authentication and token rotation, plus React Query for smooth, synchronized server state.

    FEBE
    Session-Based Balance Tracker interface

    React · Node.js · TypeScript · MongoDB · Tailwind CSS · JWT

  • Featured project

    Polymarket Statistic Collector

    2025

    A Node.js service that collects and stores real-time prediction market data, using WebSocket connections for live updates and an event-driven architecture for efficient processing.

    Polymarket statistics collector backend

    Node.js · TypeScript · WebSocket · MongoDB · Slack API

  • Featured project

    Smart Hashtag Generator

    2024

    A responsive web app that generates relevant social media hashtags using the OpenAI API. Features configurable hashtag counts and one-click copying to streamline content workflows.

    Smart Hashtag Generator web app

    React · SASS · OpenAI API

More projects

Car Rental

A React app for browsing and renting cars, with filtering by brand, price, and mileage. Users can save favorites with persisted state using Redux, plus lazy-loaded images for smooth performance.

React · React Router · Axios · Redux Persist

04.Contact

I'm always open to new opportunities — whether it's a full-stack position, frontend or backend work, or a freelance collaboration.

Feel free to reach out if you have a project in mind or just want to connect. I'll get back to you as soon as I can!

Layout inspired by Brittany Chiang. Built with Next.js.