Backend & APIs
The part nobody sees: services, data models and interfaces that other systems rely on. I design them, build them, and keep them running once they’re live.
Software engineering · Manuel Seitz
Custom software development
Backend, APIs, full stack — and system architecture where microseconds matter.
Languages, databases and tools follow the project — not the other way round.
Services
Three focus areasFull stack & web
One person for the whole thing — interface, server, database, deployment. Nothing gets lost in the handover, because there isn’t one.
Ultra-low-latency & HFT system architecture
Systems where latency is the requirement, not a metric — microseconds, jitter, and the whole path from the wire to the decision.
Background
WhizCodes is just me — Manuel Seitz. I design the software, build it, and run it. And if something breaks months later, you’re still talking to the same person.
- Studies
- M.Sc. Computer Science
- Industry
- High-frequency trading (HFT) systems for hedge funds: microseconds decide whether the trade was worth making
- Clients
- Backend services, APIs and complete web applications — built, deployed and kept running
Almost everything I build belongs to a client and stays behind an NDA, so there’s no project gallery here. If you want to know whether I can build what you have in mind, just ask me.
Have a project or a question?
Write to me. You’ll get an answer from me, not from a ticket queue.