Sauhard Singh

About Sauhard Singh

Performance-driven software engineer with 2 years of experience in back-end development…

Experience

1. Software Engineer

   Tata Consultancy Services

   Jun 2023 — Present · Bengaluru, IN

   Designed, developed, and supported the deployment of a scalable microservices-based web application for BSNL-4G, ensuring high availability across tower sites.• Built a role-based access control (RBAC) system using Keycloak and NGINX, securing CRUD operations with token-based authentication—resulting in a 40% drop in unauthorized access.• Developed and maintained REST APIs using FastAPI, with PostgreSQL as the backend. Identified performance bottlenecks in SQL queries and implemented optimizations that reduced API response times by 50%.• Led API and integration testing using Postman, improving reliability and ensuring correct HTTP responses across services.• Created an API Time Optimizer module, leveraging timestamp-based flow control logic to cut response times by 75%.• Implemented a backend-side timestamp validation API, returning Boolean flags to eliminate unnecessary data processing and streamline workflows.• Designed and deployed an App Scheduler feature using Python, FastAPI, and PostgreSQL, automating scheduled tasks and reducing manual intervention by 50% while improving error handling through notifications.• Added functionality to control scheduler states (enable/disable) and incorporated stop/resume capabilities, reducing scheduling errors by 30% and achieving 50% faster task execution.