Software Engineer Arpatech (Pvt) Ltd
Designed, developed, and maintained production-grade backend services using TypeScript, NestJS, and Express.js, with emphasis on scalability, reliability, security, and maintainability.
Built and optimized data-driven backend systems using PostgreSQL, Prisma, and Sequelize to improve query performance, data integrity, and application responsiveness. Implemented authentication, authorization, permissions, auditability, and traceability mechanisms across production environments.
Collaborated with product and engineering teams to deliver features quickly, owned backend development end to end, resolved production issues, and continuously improved system performance and reliability.