HARSH GAUTAM

Building intelligent tools and infrastructure to empower crypto investors and institutional traders.

• Built an end-to-end Ratings Dashboard using Next.js + Node.js, implementing responsive UI components, APIs, and Redis caching to display and filter 1,000+ crypto assets based on various metrics. Improved page load time and decision-making speed for users assessing tokens.
• Developed the Data API Dashboard using React.js (frontend) and Node.js (backend) where users can create, update, delete, and revoke their API keys, manage billing, and view usage statistics. Added unit testing to improve reliability and reduce bugs before release.
• Engineered a scalable DATA API platform with 20+ REST endpoints, powering investor dashboards, trading bots, and enterprise tools; released official SDKs and Postman collections for rapid developer onboarding.
• Implemented Stripe metered billing with real-time usage tracking and automated overage handling — enabled flexible pricing for power users and reduced support overhead by 60%.
• Implemented real-time systems using WebSockets + Kafka to display live cryptocurrency prices and market updates, improving UX and increasing page engagement by 35%.
• Built automated alert systems using CRON jobs and conditional logic to notify users whenever crypto prices or token ratings changed, or when custom alerts set by users hit thresholds — tripled engagement from passive users.
• Launched Zapier integration, enabling users to connect Token Metrics with 6,000+ apps and automate workflows — increasing automation usage and product stickiness by 200%.
• Added advanced access control and tiered feature gating across BASIC, ADVANCED, PREMIUM, and VIP plans to align product usage with monetization strategy.
• Published the official SDK (tmai-api) on npm, added Pipedream and RapidAPI integrations, and built an AI-powered chatbot using Coinbase Agent Kit and Token Metrics APIs — collectively driving a 3× increase in API adoption and revenue.
• Collaborated cross-functionally with Product, Growth, and Design teams to launch features faster, backed by analytics tools like Mixpanel and AWS dashboards for measurable performance improvements.

Tech Stack: Node.js, Next.js, React.js, NestJS, MySQL, Redis, WebSockets, Kafka, Stripe, AWS, Zapier, Mixpanel

Built intelligent communication tools to simplify customer relationship management.

• Led backend engineering for HC Inbox, a graph-powered CRM platform that helps teams manage multi-channel customer conversations (WhatsApp, SMS, Meta, etc.) in a single unified inbox.
• Developed Node.js microservices integrating Twilio and Meta APIs for real-time chat, voice, and message delivery, enabling instant communication between businesses and customers.
• Refactored a monolithic backend into modular NestJS services, improving performance, scalability, and maintainability across communication flows.
• Built test automation pipelines using Jest, increasing QA coverage by 40% and reducing regression issues in production.
• Managed Docker-based CI/CD deployments, ensuring seamless rollout of updates and high system uptime.

Delivered full-stack web features and backend modules across multiple client projects using React.js, Node.js, PHP, and Java.

• Developed end-to-end web solutions from responsive UI in React.js to backend APIs using Node.js, PHP, and Java (Spring Boot) for select modules.
• Built secure REST APIs and authentication flows for enterprise clients, ensuring scalability and role-based access.
• Contributed to backend logic in Java services, assisting in building data processing and validation layers, gaining strong exposure to the Spring ecosystem.
• Created an analytics dashboard visualizing business data, improving client reporting efficiency and transparency.
• Optimized MySQL queries and integrated Redis caching to store query results, enabling faster retrieval for repeated requests and reducing backend load by 40%.
• Collaborated with senior engineers to integrate multiple services and maintain CI/CD workflows across environments.
• Tech Stack: Java, JavaScript, React.js, Node.js, PHP, MySQL