https://schmelczer.dev/about/
I'm Andras Schmelczer, a full-stack software engineer.
I design, build, and operate products end to end, from data pipelines and backend services to responsive interfaces and production infrastructure. In my free time, I apply the same care to less ordinary ideas involving GPUs, embedded hardware, and unusually large datasets.
What I do
My professional background spans full-stack products, platform architecture, and production AI/ML. I have built web services, data and NLP pipelines, APIs, and user interfaces; led technical work; and helped turn research and prototypes into software people can depend on.
I work most often with TypeScript, Python, Rust, SQL, and cloud infrastructure. The technology changes with the problem, but the job does not: understand the constraints, choose a clear architecture, measure the parts that matter, and deliver a complete product rather than an isolated component.
Outside work, I build things because an idea sounds useful, difficult, or simply fun. That has led to a property search engine, a cross-language Rust library, browser GPU experiments, a handheld game, self-hosted infrastructure, and tools that have remained useful for years. The detailed writeups on this site include the architecture, measurements, trade-offs, and mistakes.
Selected engineering work
- Product and data
Perfect Postcode
A full-stack property search product that joins public datasets onto roughly 25 million records and filters them across more than 80 criteria with sub-100 ms p99 latency.
- Systems and libraries
reconcile-text
A Unicode-aware three-way text merger with one Rust core shipped to crates.io, npm, and PyPI through WebAssembly and native Python bindings.
- Hardware and firmware
Ad Astra
A handheld game designed from the PCB up, with a 50 FPS streaming renderer and atomic saves on an 8-bit controller with 512 bytes of RAM.
- Graphics and performance
SDF-2D
A TypeScript and WebGL ray tracer whose deferred, tiled pipeline cut measured GPU time from 130 ms to 1.85 ms and ran at 30 FPS or better on 33 of 37 tested devices.
- Creative computing
Fleeting Garden
An interactive WebGPU artwork in TypeScript and WGSL that lets people draw with up to a million simulated agents, with adaptive load shedding on slower devices.
- Long-lived product
Fizika
A physics revision app built in 2016, rewritten twice as its needs changed, and still used by students at my former school.
I'm interested in full-stack and product engineering roles with substantial technical problems, clear ownership, and room to ship. If that describes what you're building, I'd like to hear about it.