Omar Al Obaji.

Dec 2022 - Present · Remote

• ▹Led development and maintenance of a decentralized socket-based Password Manager using Electron, React, Vue, TypeScript, Node.js, and RealmDB, serving 100k+ users — optimized legacy Node.js runtime reducing API latency by 50% and memory footprint by 30%
• ▹Optimized 10+ API endpoints on a multi-tenant PAM platform (.NET C#, Redis, MySQL, DocumentDB), reducing latency by up to 82% (1100ms → <200ms) through query profiling, index tuning, and code restructuring
• ▹Expanded PAM product scope by shipping multi-item-type support, enabling it to function as an integrated credential management platform alongside access management
• ▹Built and operated parameterized cross-tenant DocumentDB & MySQL migration pipelines on GitHub Actions, supporting targeted or bulk tenant migrations via CI/CD
• ▹Added Datadog APM instrumentation and structured logging, improving observability across a complex multi-database, multi-tenant service
• ▹Engineered gRPC-based migration service (C# .NET) to transition 100k+ users from Node.js to multi-tenant MySQL/DocumentDB, ensuring zero-downtime data integrity with an almost 100% success rate
• ▹Led React → Vue.js migration across 200+ components, eliminating 200+ security vulnerabilities (CVE tracking) and improved bundle size
• ▹Built CI/CD pipelines using GitHub Actions, enabling automated multi-platform builds and deployments (Windows/macOS/Linux)
• ▹Applied Go (Golang) with gRPC for backend services, improving performance and scalability
• ▹Leveraged AI-assisted development tools (GitHub Copilot, Claude, Cursor) to accelerate development, improve code quality, and streamline debugging workflows
• ▹Solved critical OS-level production issues using PowerShell, Bash, and debugging tools

Aug 2021 - Dec 2022 · Hybrid

• ▹Led full-stack development of mobile fashion app (React Native + React.js + Python Flask) from MVP to 30k+ active users; shipped on iOS App Store and Google Play with 4.6-star rating
• ▹Built reusable component library (React hooks + context API) enabling 3-person frontend team to deliver features faster
• ▹Integrated payment (Stripe), authentication, and analytics APIs, expanding product capabilities and improving user retention
• ▹Managed full app lifecycle including development, testing, and deployment from scratch
• ▹Deployed zero-downtime migrations using Flask + PostgreSQL with rollback safeguards

Apr 2022 - Oct 2022 · Freelance

• ▹Built a sustainability tracking app from scratch using React Native
• ▹Deployed backend services on AWS EC2 with NGINX and WSGI
• ▹Maintained Android builds using Gradle