Jun 2024 – Jun 2025 · 1 yr · Bengaluru · Hybrid

• In my role as a Back-end Developer at Liftoff LLC, I was responsible for architecting and implementing high-performance back-end systems using NestJS and TypeScript. I developed RESTful and GraphQL APIs, incorporating features such as pagination, filtering, and asynchronous processing to optimize data handling. My focus on security led to the integration of JWT authentication and RBAC mechanisms, ensuring compliance with enterprise standards. I also enhanced back-end efficiency through Redis caching, SQL indexing, and query optimization, which significantly reduced latency and improved system throughput. Additionally, I managed cloud infrastructure for file storage and delivery using Amazon S3 and CloudFront, and integrated SendGrid for automated email workflows. My work involved designing maintainable and modular architecture, collaborating effectively in agile teams, and utilizing tools like Jira, GitHub, Postman, and Slack for project management.
• Achievements: During my tenure, I achieved notable milestones, including a 35% reduction in API response time through effective caching and query optimization. I successfully deployed over 12 APIs in production, serving between 500 to 800 concurrent users. My efforts in optimizing SendGrid integration led to a 99% email delivery success rate, while architectural optimizations resulted in a 30% improvement in system throughput. These accomplishments reflect my commitment to delivering high-quality, scalable solutions that meet user needs.