Full-stack development
Node.js, Express, REST APIs, MariaDB / MySQL, Sequelize. Authentication, sessions, and persistent storage from the schema up.
Open to new opportunities
Portfolio · 2026
Engineering at the seam of code & infrastructure.
Abd AlRahman Khalil · Computer Science · ~/jerusalem
I build dependable software and operate the systems behind it — full-stack web apps, QA automation, and L1/L2 support for thousands of users. Engineering with a bias for stability, observability, and clean execution.
Available
0+
Users supported
0%
SLA compliance
0+
Shipped projects
0%
Test coverage
About
Hybrid by design.
"Stability is a feature. Observability is the other half."
I'm a detail-oriented Computer Science professional bridging the gap between software development and IT infrastructure. With a strong foundation in OOP, data structures, and algorithms, I approach software with a focus on stability and performance.
My background managing L1/L2 technical support for thousands of users has instilled a rigorous QA mindset. I excel at root-cause analysis, log forensics, and automating away repetitive work — whether building full-stack apps, computer-vision scripts, or hardening enterprise environments.
01
Stability first
Stability and observability before features — production should fail loudly, not silently.
02
Automate the boring
Anything done twice gets a script. Anything done weekly gets a pipeline. Document the rest.
03
Tests as hygiene
Coverage isn't a metric, it's a habit — like washing your hands before surgery.
Capabilities
What I do.
A practical mix of building, testing, and supporting — across the stack and across the org.
QA & automation
Selenium, Playwright, Postman, Appium, unit testing. Build pipelines that fail loudly so production doesn't.
Support & infra
Active Directory, DNS/DHCP, TCP/IP, Windows Server, Linux. PowerShell automation and RCA-driven documentation.
Selected work
View all projects
Recent projects.
A small slice — full-stack, computer vision, automation, and game engineering.
Toolkit
Tools that earn their keep.
Currently
What I'm on right now.
Building
Automation toolkit at Hadassah
PowerShell pipelines for AD onboarding and recurring infra checks.
Reading
Designing Data-Intensive Applications
Kleppmann — chasing the parts about replication and consensus.
Learning
Playwright + Postman flows
Wiring API contract tests into CI to fail loudly before deploys.