Ab. Waheed

• Led the migration of legacy codebase to modern tech stack (TypeScript, React, Redux, AWS), supporting $5 million annual revenue. • Optimized frontend performance through code splitting and caching, reducing initial load time by 60%. • Collaborated with cross-functional teams to prioritize tasks and gather business requirements. • Architected microservices using Node.js, Express, TypeScript, PostgreSQL, and Kafka, increasing paid customers by 30%. • Mentored junior developers.

• Designed and implemented RESTful APIs using Node.js, Express, MongoDB, and TypeScript, deployed on AWS (EC2, S3). • Developed and maintained frontend for 5 e-commerce applications using Next.js, TypeScript, Redux, React Query, and Tailwind CSS. • Created comprehensive API documentation, improving developer productivity by 200%. • Implemented user review system and Stripe payment integration for an LMS application (Angular, RxJS, Tailwind CSS), generating $500K quarterly revenue.

• Collaborated on RESTful API integration for frontend applications, liaising with backend teams and partner companies. • Transformed Figma designs into scalable code for user account management dashboards using React, Bootstrap, and Styled Components. • Contributed to the UBL digital mobile application (8M+ installs) using the Temenos framework, supporting millions of daily transactions.