Java Backend Developer with over 3 years of experience building enterprise-grade Spring Boot microservices and secure REST APIs for AT&T systems handling 10,000+ daily transactions. Experience contributing to microservic…
Java Backend Developer with over 3 years of experience building enterprise-grade Spring Boot microservices and secure REST APIs for AT&T systems handling 10,000+ daily transactions. Experience contributing to microservices migration initiatives, legacy modernization efforts, and application performance improvements in enterprise environments. Deep expertise in Java 17, Spring Boot 3.x, JPA/Hibernate, and API security (JWT, OAuth2). Hands-on experience with Docker, Kubernetes, CI/CD pipelines, and Agile delivery, supporting scalable application development and production deployments.
Experience
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Java Software Developer
Tech Mahindra (Client: AT&T)·Pune , Maharashtra , India
Nov 2023 - Present · 2 years 8 months
Designed and deployed 25+ production-grade RESTful APIs across Spring Boot microservices (Java 8 & 17), reducing inter-service latency by 25% and sustaining 10,000+ daily transactions across critical business workflows. Led migration of 5+ microservices from Spring Boot 2.2.x to 3.x and JDK 8 to 17, improving security posture, framework compatibility, and long-term maintainability. Architected service communication using synchronous REST and asynchronous Kafka messaging, improving system decoupling and fault resilience across distributed services. Containerized services with Docker and Kubernetes, enabling scalable, portable deployments on AWS and Azure App Services. Transitioned legacy JDBC to JPA/Hibernate ORM, reducing development effort by 30% and improving query maintainability across 4+ application modules. Refactored 15+ legacy modules to align with current Java standards, advancing SonarQube code quality scores by 35% and achieving full compliance in every audit cycle. Reduced production defects by 20–30% quarter-over-quarter by systematically eliminating performance bottlenecks and owning end-to-end feature delivery. Debugged and eliminated 30+ critical production bugs within a 6-member Agile team, cutting crash reports by 40% and reinforcing overall system stability. Remediated 900+ security vulnerabilities via Veracode and Astra, maintaining full compliance with OWASP Top 10 and enterprise secure coding standards across all modules. Implemented input validation and secure coding practices to resolve 200+ critical code vulnerabilities, achieving zero security audit failures. Optimized CI/CD pipelines via RevUp and GitHub Actions, accelerating deployment time by 20–30% and ensuring release stability across development, staging, and production environments. Leveraged GitHub Copilot (AI-DLC) to increase individual development productivity by 25%, shortening feature time-to-delivery. Spearheaded the delivery of 3–5 client features per sprint—including user stories, enhancements, and defect fixes—while maintaining velocity across full Agile delivery cycles.
