Start with the contract
Define inputs, permissions, validation rules, and failure responses before connecting services. Clear boundaries make backend behavior easier to implement, test, and maintain.
CHARBEL MDAWAR / PORTFOLIO
Expertise
Engineering from the first API contract to the final release check.
Test beyond the happy path
Combine API checks, browser automation, exploratory testing, and load testing. Give authentication, payment transitions, and data integrity particular attention because failures there affect the whole product.
Carry quality into delivery
Connect automated checks with delivery pipelines, then use logs and production troubleshooting to understand behavior in real environments. Reliability depends on the operating system as much as the application code.
01 / Expertise
Built well.
Tested thoroughly.
Engineering and quality are part of the same process. Here is the toolkit I bring to both.
Backend development
Secure services and the business logic behind them.
Identity & integrations
Connected applications with thoughtful access control.
Quality engineering
Test strategies that turn requirements into release confidence.
Performance & security
Validation under load and across application attack surfaces.
Data & messaging
Persistence, caching, and asynchronous communication.
DevOps & delivery
Reliable environments and practical production troubleshooting.