Andrei Dragomir

Case studies

What I've built

Live links and repos where they exist. Every name goes to the full write-up.

  • Pastrac

    React Native · Supabase · iOS

    An iOS app for pinning the places that matter to you: drop a pin on a live map, attach notes and photos, categorise the moment, then choose who sees it.

    pastrac.com ↗ App Store ↗ Case study →

  • Collaborators

    Next.js 14 · Solana · Prisma · NextAuth

    Turns verified GitHub activity into on-chain rewards. Maintainers set bounties on open issues; contributors get paid to their wallet once the work is reviewed.

    collaborators.build ↗ Code ↗ Case study →

  • Med Prep

    Ruby on Rails · Stripe · PostgreSQL

    The testing and e-learning platform behind a Swiss medical-school prep school: thousands of practice questions, timed mock exams, scoring and subscriptions.

    medprep.ch ↗ Case study →

  • Crypto Staking Calculator

    React 18 · Material UI

    A retro arcade–styled staking calculator that estimates rewards and compares plain APR against compounding. A finance tool with a personality, shipped end to end.

    Live demo ↗ Code ↗ Case study →

  • Archeo

    Ruby on Rails · TailwindCSS · PostgreSQL

    An internal platform for an excavation company running on dozens of Excel sheets where nobody was sure which file was current. Sites, crews and hours in one system.

    Case study →

  • R&T product platform

    Django · React · Python

    Built with a large team for a multinational personal-care manufacturer: tracking every product through research and testing before it reaches market.

    Case study →

  • Agency automation

    TypeScript · Puppeteer · Firebase · Stripe

    Puppeteer tooling that took the repetitive browser work off a marketing agency's virtual assistants, plus leading and mentoring the team that maintained it.

    Case study →

  • DSS Inox

    JavaScript · Firebase Hosting

    A service site for a stainless-steel fabrication business in Mediaș: the kind of small-business web presence that has to load fast and be trivial to update.

    Live site ↗ Code ↗ Case study →

  • WallApp

    Android · Java

    A wallpaper app built to promote Romanian artists rather than bury them in a feed: set wallpapers, follow creators, save favourites. Shipped to Google Play.

    Code ↗ Case study →

  • Early work

    JavaScript · React Native · SAP ABAP

    The exchange-rate app I built in high school, still deployed on purpose, plus the two shorter engagements, Telemed and an SAP ABAP internship, worth naming.

    Live demo ↗ Case study →

Stack

What I reach for

Backend & data
Ruby on Rails, Django, Node.js, Python, Ruby, PostgreSQL, Firebase, Supabase
Frontend & mobile
TypeScript, React, Next.js, React Native, TailwindCSS, Kotlin
Infra & Web3
Docker, CI/CD, Git, Puppeteer, Stripe, Solana, Solidity