Open to the right engineering work
Software engineer. Full stack.
I'm Sufi Afifi, a software engineer who works across the whole stack: backend services and payment APIs, the React interfaces on top of them, and the production debugging that keeps both running.
- Live products
- 05
- Case studies
- 04
- Articles
- 06
- Guides
- 05
- Browser games
- 16
- Peer-reviewed paper
- 01
01 — Selected work
Real systems, real problems, real outcomes.
Payment Transaction Debugging System
Investigated missing financial transactions by tracing logs across distributed services — identified a silent database write failure in the webhook processing layer and restored affected records.
NeuralAV — AI Antivirus
Rust-based antivirus engine using a PyTorch fine-tuned BERT neural network for binary classification — extends my published malware-detection research into a working tool.
AI Malware Detection
Published research on neural network-based malware detection using binary data analysis.
Rustra — Rust + Wasm Web Framework
A multi-threaded web framework written in Rust with WebAssembly, built to learn the internals of HTTP servers, thread pools, and browser-side Rust.
02 — Free tools
Things I built that you can use right now.
Free, no sign-up, and they run in your browser.
Internet Speed Test
Browser-based estimate of latency, jitter, download and upload throughput against Cloudflare's edge.
sufi.my/speedtestATS Resume Builder
Write a resume in Markdown, preview it as an ATS-friendly layout, and export a clean PDF.
sufi.my/resume-builderOnion Directory
Official Tor .onion addresses of well-known organisations, each checked against the organisation's own website.
sufi.my/onion-directorySystems Lab
Interactive demos of backend failure modes: incident debugging, webhook retries, log traces, and payment architecture.
sufi.my/systems-lab16 Browser Games
Arcade classics, puzzles, an unbeatable chess AI, trivia and Doom. No downloads, no sign-up.
sufi.my/games03 — In production
Small products I run.
Public projects with their own domains. Useful, simple, and still improving.
oakstat.us
Monitor services, publish status, and catch downtime before users do.
Public uptime monitoring with global checks, status pages, and incident visibility.
Visit producteasybin.xyz
Send sensitive snippets and files without leaving copies around.
One-time encrypted text and file sharing with quick PIN handoff and automatic expiry.
Visit productlorm.pro
Fake Data Toolkit
Lorem, mock APIs, datasets, logs, and generated test payloads in one place.
uscs.sufi.my
Signal Transceiver
Browser-based ultrasonic transmit, receive, analyze, and tuning controls.
invoice.sufi.my
E-Invoicing
Invoice creation flow with payment links, QR sharing, and compliant PDF output.
04 — Engineering notes
Writing that explains systems.
Not tutorials. Explanations of how things actually work.
Git Workflow That Actually Works
A practical branching strategy for small teams that balances speed with safety.
REST vs GraphQL: When to Use Each
A practical comparison of REST and GraphQL with real-world trade-offs.
ELI5: Docker Containers Explained
Understanding containers, images, and why they matter for deployment.
05 — Next
Need someone who can ship the product and debug the system?
Open to roles and collaborations where shipping, reliability, and technical judgment all matter.