Kuldeep Kumar

Design and build a secure, real-time check-in and check-out management system for facility operations, allowing seamless tracking of personnel movements.

Architected the backend with Laravel, leveraging its robust authentication and request handling. Built the user interface in React.js for high responsiveness. Set up, deployed, and managed the complete application infrastructure and DevOps pipelines on AWS.

Develop a reliable warehouse inventory management application to track material flow, stock levels, and storage locations with strong data integrity.

Constructed a database-backed inventory log on Laravel APIs, paired with a React.js interface for quick staff operations. Managed the deployment architecture on AWS and established continuous delivery pipelines.

Support and extend a growing music streaming platform — handling bug fixes across a complex codebase, shipping new features under tight timelines, and maintaining platform stability as the user base grows.

Diagnosed and resolved production bugs systematically, tracing issues through the full stack rather than patching surface symptoms. Delivered new features with minimal regression by writing against the existing architecture's grain rather than introducing new patterns unnecessarily.

Build a full communication platform integrating Twilio's voice calling and SMS APIs — handling call routing, message queuing, delivery status tracking, and webhook event processing reliably at scale.

Designed a NestJS-based event-driven backend that handles Twilio webhooks idempotently. Built robust retry logic and status reconciliation to handle the edge cases Twilio's async model creates. Also provided Twilio-related support to the Bonzo product team.

Maintain and extend a live enterprise platform over multiple years — balancing new feature delivery against the risk of regressions in a production system that clients depend on daily.

Built familiarity with the codebase incrementally, introduced structured debugging processes, and established a pattern of thorough manual testing before any production push. Prioritised backward compatibility in all changes.

Deliver a complete personal finance tracking application independently — covering backend API, database design, authentication, and frontend — as one of the first independent projects in my career.

Built end-to-end using PHP/Laravel for the backend and a clean frontend interface. Established my own development workflow for independent ownership: requirements → schema → API → frontend → QA → deployment.

Provide ongoing engineering support for TPC — triaging bugs, fixing production issues, and shipping new features without disrupting an active user base.

Established a structured approach to each bug report: reproduce first, understand root cause, fix at the source rather than at the symptom. New features scoped carefully to avoid scope creep and regression.