Himanshu Mishra

Built an AI-driven issue management system using Retrieval Augmented Generation (RAG) with LLMs (GPT-4o-mini, Gemini 2.5 Pro), FastAPI, Qdrant, and Slack APIs to auto-resolve bugs and manage tasks directly in Slack, eliminating Trello/Jira while saving $24K+ annually. Implemented a multi transport-mode journey planning system using OpenTripPlanner integrating Bus, Metro, Train with private modes (Auto, Cab), enabling CabMetroBus combinations and reducing fare costs by 50%+. Developed a transport data correction tool in FastAPI, migrating from file-based DB to PostgreSQL, enabling MTC staff to manually update transit data. Wrote 100+ unit, integration, and browser tests with Pytest and Selenium, integrated into CI via GitHub Actions, raising coverage to 75% and reducing bugs by 30%. Engineered a data pipeline tool in FastAPI to generate daily static datasets from waybill data and feed them into OpenTripPlanner. Integrated real-time vehicle data using Redis for railways and buses, enabling accurate live trip status. Developed a one-click deployment platform with FastAPI, Kubernetes, GitHub APIs, and AI Agents, reducing deployment cycles from hours to minutes.

Created a design system with reusable UI components that enhanced scalability, ensured design consistency, and accelerated development across teams. Worked on the core QR Code generating library, adding features to use custom images as masks in QR codes, resulting in a 35% increase in scan rates. Developed auto-customization of QR codes, allowing users to upload brand logos and automatically customize QR codes based on logo colors, leading to an 85% user satisfaction and design consistency. Implemented pricing page that integrates with a single source of truth leveraging Amazon S3, dynamically updates pricing based on exchange rates, and synchronizes pricing data across multiple applications.

Part of Problem Setting Team responsible for curating 50+ questions and test cases for HackerEarth Recruit. Worked as a Problem Tester to test the quality of testcases, ensuring a 100% approval rate.