Hammad

Built Ruby on Rails features for third-party API integrations to expand functionality in the company’s parking platform. Implemented comprehensive payment solutions including credit card processors, PayPal, Apple Pay, Google Pay, and ACH transfers with secure and efficient transaction handling. Designed and built a TypeSense-based search infrastructure for 50M+ records using ETL pipelines that upsert and normalize data to improve search accuracy and speed. Developed automated permit invoicing with recurring charge rollups and auto-billing of stored payment methods with configurable responsibility between managers and parkers. Built real-time vehicle occupancy and compliance engine to provide customers actionable insights, and improved reliability and performance through database indexing and query optimization.

Developed an AI-powered website summarization service using AWS API Gateway, Lambda, SQS, and Amazon Bedrock to extract contact details and entity information for automated financial-services verification workflows. Built a core financial-services verification web service for a Google Ads project. Implemented REST APIs in Ruby on Rails powering an internal analyst/admin portal handling 300k+ applications, documented with Swagger and tested with Postman. Created dynamic MVC forms supporting 10+ countries and languages via locales and YAML files. Re-architected reporting infrastructure to reduce report generation time from hours to seconds while conserving resources, and delivered internal analyst tooling including full-text search, UI improvements, email previewing, and faster report generation. Streamlined builds and deployments via Docker and automated CI/CD workflows with GitHub Actions, and improved observability with Kibana analysis and alerting. Implemented authentication and auth

Built RESTful APIs in Ruby on Rails serving a React frontend. Developed and enhanced features including scheduling, payments, maintenance, and admin tools using appropriate algorithms and business logic. Optimized and refactored components such as live chat, bookings, and loading flows. Implemented security measures including WAF, security headers, form validation, and API rate limiting. Built email systems using asynchronous queues, templating, and CMS integration to handle thousands of requests.