Experience.

Developed and enhanced fintech platforms, developer-facing APIs, and backend infrastructure across 5paisa's trading ecosystem. Worked across the full development lifecycle, from building user-facing features and backend services to cloud deployment, performance optimisation, monitoring, and real-time alerting.

• 01 —Trading Platform Engineering
  Enhanced 5paisa's flagship FnO derivatives trading platform and Trader's Terminal using React.js and TypeScript. Developed new features and leveraged Sentry for performance monitoring and error tracking to improve load times, application stability, and user experience.
• 02 —Developer API Platform & Cloud Deployment
  Designed, developed, and deployed Xstream, a developer API platform for professional traders, alongside Open API. Owned end-to-end implementation spanning infrastructure planning, Azure DevOps pipelines, and application development using Next.js, React.js, Material UI, MySQL, and Strapi. Containerised and deployed services using Docker, Azure Container Registry, and Azure App Service.
• 03 —Observability & Incident Management
  Built an error logging and visualisation system using Node.js, Express.js, ClickHouse, Grafana, and Azure. Developed proactive error alerting with the ELK Stack and PagerDuty to improve issue visibility, accelerate debugging, and strengthen application reliability.
• 04 —Real-Time Advisory & Alerting Systems
  Developed Salah, a real-time trading advisory engine using Node.js, Express.js, WebSockets, Firebase, MySQL, and Azure to broadcast and track trading advisories. Also worked on alerting engines across 5paisa's mobile and web applications to support timely, reliable notifications.

Developed backend automation tools and secure APIs to improve testing efficiency and deliver reliable integrations across 5paisa's trading and charting platforms.

• 01 —Backend automation
  Built a Node.js and Express.js automation system with MS SQL to capture OTPs from mobile devices and relay them to desktop browsers, reducing manual effort during transaction testing workflows.
• 02 —Secure API development & integration
  Designed secure REST APIs using Node.js, Express.js, Firebase Realtime Database, and MySQL, implementing JWT authentication, rate limiting, and HTTP security optimisations. Integrated these APIs across FnO, Trader's Terminal (then called Tradestation), Charts, and Login using React.js, AngularJS, TypeScript, and JavaScript.