Full Stack Developer · Goslar, Germany
Web apps, built end to end.
I'm Hosam Othman, a full stack developer working across React frontends, Node.js/NestJS backends and AWS infrastructure. I care about clean architecture and software that stays fast under load.
Core stack
- 3,500/s Peak position updates per second processed by a NestJS backend I built
- 100% → <5% CPU usage of a backend service after fixing a bottleneck found in load testing
- 500–600 MB React frontend memory usage, down from ~1 GB
- 10 Students mentored through an intensive full-stack course
Selected work
Recent projects across backend, frontend and infrastructure.
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Location tracking backend
A NestJS monorepo on AWS that processes 2,000–3,500 position updates per second via Kafka. I also migrated its data layer from MongoDB to PostgreSQL.
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Device configuration platform
A React application for configuring connected devices live over WebSocket, with Zustand for state management.
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Logbook management
A React and GraphQL application for tour, receipt and administrative workflows.
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Infrastructure & delivery
AWS infrastructure managed as code with Terraform, with deployments automated through GitHub Actions.
Have a project in mind?
I'm always happy to talk about new roles, interesting projects and full-stack engineering.