denish@127.0.0.1:~$history --work
Work Experience — Backend Developer | DevOps Engineer
3 positions · Jan 2022 – Present
- Architected and developed rostering software for guard management with real-time tracking using Node.js, Express, and MongoDB.
- Managing AWS infrastructure (EC2, S3, SQS) and CI/CD pipelines to ensure high availability and scalability.
- Implemented real-time communication features with Socket.IO, enabling instant shift updates, notifications, and reporting.
- Optimized system performance using Redis caching and streamlined backend module development.
★ Key Achievements
Built production-ready real-time shift updates and automated reporting engine for guard rosters
Optimized database queries and API response times using Redis caching
Mentored junior developers on Node.js, MongoDB, and AWS best practices
Node.jsExpress.jsMongoDBSocket.IORedisAWS (EC2, S3, SQS)CI/CDDocker
- Developed an NFC-based attendance system to record employee/user check-ins using NFC card scanning and automated backend processing.
- Designed RESTful APIs with Node.js, Express, and MongoDB to store and manage attendance logs securely.
- Built an employment management system to handle contracts, certifications, and user records efficiently.
- Developed features for dynamic contract generation and integrated digital signature workflows for employees.
★ Key Achievements
Deployed NFC attendance backend on AWS EC2 & S3 for real-time tracking and reporting accuracy
Digitized employment management and contract workflows, significantly reducing manual paperwork
Coordinated with cross-functional teams (frontend, QA, DevOps) to integrate APIs smoothly
Node.jsExpress.jsMongoDBMongooseNFCAWS EC2/S3REST APIs
- Developed and maintained multiple client websites using WordPress and custom PHP/JavaScript solutions.
- Collaborated with clients to implement custom features and UI enhancements, improving user experience and engagement.
- Optimized website performance, SEO elements, and backend functionality for diverse business requirements.
★ Key Achievements
Successfully delivered and managed multiple client projects with high satisfaction rate
Customized PHP/WordPress plugins and theme functions to deliver tailored client solutions
WordPressPHPJavaScriptHTML/CSSMySQL