• Implemented a multi-tenant service leveraging Alloy APIs for identity and risk management, streamlining the application filing and lending process.• Integrated Credit-Saison APIs into Maadhyam as part of the lender onboarding process, which facilitated seamless data exchange, automated checks, and streamlined the onboarding workflow.• Created a multi-tenant service for KSA clients, leveraging Qarar APIs to deliver advanced decision analytics and comprehensive business insights.• Created a versatile JSON to XLSX converter to streamline data processing and enhance reporting efficiency.• Developed a pre-application feature enabling borrowers to view potential lending options and details based on specific parameters• Improved dashboard API performance by 45% through optimization of the aggregation query, using the results for common stages as cache• Enhanced user service logging with event handlers, achieving a 30% increase in tracking and insights• Developed and maintained Jest integration tests to ensure system functionality and prevent breaking changes, maintaining high reliability and stability of the core service

• Built and maintained REST APIs using Node, Express, and PostGIS to load 10k+ vector tiles in 700ms.• Optimized API code and SQL queries to improve API performance and reduce latency from over 1200ms to 500ms, improving API performance by 40%.• Implemented a secure rate limiter middle-ware, ensuring the performance of the system and reducingunnecessary API calls mitigating potential rate attacks.• Developed automated tests and maintained CI/CD workflows to ensure the high quality and reliability of the APIs.• Revamped API the entire validation spec in JavaScript using OpenAPI and express-open-API middleware, which improved efficiency and reduced API creation and maintenance.• Developed and maintained tests for in-house API gateway, using Mocha, Chai, and Docker ensuring reliability and effortless development of new features.• Successfully fixed a significant number of bugs and issues, resulting in a 10% reduction of total issues, demonstrating strong problem-solving and technical skills