Hi, my name is

[Oliwier Dziech]

I build things for the web.

|

A web developer building full-stack applications — from AI-powered SaaS platforms and real-time dashboards to complete booking systems. Focused on clean architecture and polished interfaces.

View My Work Download CV

01. About Me

I'm a full-stack developer who enjoys turning complex problems into clean, intuitive products. My work spans AI-powered SaaS platforms, real-time monitoring tools, and custom booking systems—always with a focus on performance and user experience.

I build end-to-end: REST APIs, database design, WebSocket integrations, payment systems, and polished UIs. I like working close to the product, from architecture decisions down to the last CSS transition.

When I'm not coding, I'm usually reading about new backend patterns or experimenting with the latest AI APIs.

02. Experience

JavaScript Developer @ SelfCAD

Currently employed

SelfCAD is an American web-based 3D CAD application — a professional modeling tool used by engineers, designers, makers, and educators around the world, running entirely in the browser.

  • Full-stack development on a large-scale JavaScript codebase, contributing to both the frontend modeling interface and backend services
  • Building and maintaining core CAD features, UI components, and tooling across the entire product
  • Collaborating with a US-based product team to ship improvements to modeling workflows, performance, and user experience
  • JavaScript
  • Node.js
  • WebGL
  • REST APIs

03. Technical

Frontend

JavaScript (ES6+) React 18 HTML5 CSS CSS Modules Recharts

Backend

Node.js Express Google Gemini MongoDB SQLite JWT Stripe Socket.io

Tools

Git & GitHub Vite Zustand Docker Figma REST APIs

04. Selected Work

Postinity Landing
Postinity Create
Postinity Analyze
Postinity Stats
Postinity Calendar

Featured Project

Postinity — AI Content Creator

AI-powered platform that converts YouTube videos, PDFs, articles, and audio files into platform-optimized social media posts. Features content scoring (0–100), a scheduling calendar, Stripe billing, and a referral system.

  • Node.js
  • Google Gemini
  • MongoDB
  • Stripe
  • Vanilla JS

Featured Project

Pulse — Monitoring Dashboard

Real-time monitoring dashboard with live WebSocket metrics updating every 2s, animated transitions, dark/light mode, command palette (Ctrl+K), and four dedicated monitoring pages with service health indicators.

  • React 18
  • Node.js
  • Socket.io
  • Recharts
  • Zustand
Pulse Dashboard Dark Mode
Pulse Dashboard Light Mode
Pulse Analytics
Pulse Events
Client Calendar
Client Calendar 2
Admin Calendar
Admin Week View
Admin Booking
Admin Settings

Featured Project

Museum Booking System

Full-stack booking platform for museums. Visitors reserve visits through a public calendar with real-time availability. Staff get a complete admin panel with month/week views, booking management, client database, and time blocking.

  • Node.js
  • Express
  • SQLite
  • Vanilla JS
  • JWT

05. What's Next?

Get In Touch

Although I'm not currently looking for any new opportunities, my inbox is always open. Whether you have a question or just want to say hi, I'll try my best to get back to you!