Leading backend development for AT&T platform supporting 200K+ users. Integrated 20+ third-party systems and delivered billing enhancements. Designed Java microservices on Microsoft Azure ensuring scalability and high-availability. Built and maintained CI/CD pipelines for automated deployments and monitoring. Developed REST and SOAP APIs using Spring Boot and Oracle. Applied secure SDLC practices including SAST, DAST, and SCA. Integrated AI capabilities using OpenAI APIs for intelligent automation and data processing. Collaborated with US stakeholders in a fully remote, cross-time zone environment, ensuring clear communication and timely delivery.

Designed scalable REST API framework for enterprise integrations. Improved CRM billing system performance and reliability. Developed Microsoft Word add-in for legal ambiguity detection. Led backend development of a Bitcoin trading platform (mobile + web).

Developed backend APIs and admin portal for mobile applications. Built REST services using Spring MVC, Hibernate, and Spring Security.

Developed telecom portal and gateway systems for British Telecom. Contributed to SOA-based enterprise system supporting P&O Ferries.