
Damanjeet Singh
MERN Stack Developer for Modern Web Apps
Kompetenzen

Meine Dienstleistungen


Portfolio
Arbeitserfahrung
Full Stack Developer
Freelancing Career • Freiberufler
Sep 2025 - Present • 8 mos
1. Led end-to-end delivery of 5+ production-grade client projects, including full-stack e-commerce and dashboard platforms built with Next.js, Node.js, TypeScript, and PostgreSQL. Owned system architecture and ensured reliable, zero-downtime deployments using blue-green deployment strategies. 2. Provided ongoing maintenance and feature enhancements for existing client applications, including bug fixes, performance improvements, and API integrations, ensuring high availability and stable production environments. 3. Designed and engineered scalable backend systems using Redis and BullMQ to offload critical workflows such as payment verification, order processing, and webhook handling into background jobs, improving API response times and reducing processing latency by ~60%, while supporting 300–400 active users. 4. Implemented AWS S3-based media management system for secure and efficient file storage and retrieval. Designed RESTful APIs and optimized database schemas for performance, scalability, and maintainability across production environments.