Backend Software Engineer (Associate Product Developer) at Lumel Technologies Inc.

Designed and implemented 20+ production-grade RESTful APIs using Node.js and TypeScript, applying OpenAPI and microservices architecture principles to reduce processing overhead by 40% and improve scalability. Optimised large-scale MSSQL database performance using indexing, JOIN strategies, and query refactoring to achieve 70% faster data load times. Built an authentication and authorization system using OAuth 2.0, JWT, and fine-grained RBAC, supporting secure auditable credential management across distributed services. Resolved 100+ security vulnerabilities using GitHub Dependabot scanning, automated upgrades, and dependency hardening, improving security posture by 50%. Improved load handling and fault tolerance using Redis caching, migrations via TypeORM, and backend reliability refactoring, raising crash-free rate from 95% to 99.8% under production traffic. Led code reviews and mentored junior engineers on clean code, secure coding, and system design patterns in an Agile Scrum envir

Software Engineer Trainee (Product Developer) at Lumel Technologies Inc.

Implemented Redis-based message queues and backend optimisations across modules, reducing code complexity by 70% and improving throughput and response times. Built comprehensive error-handling and fault-tolerance mechanisms to reduce unhandled exceptions and improve production reliability. Developed responsive UI components using React.js and Tailwind CSS in collaboration with design teams.