Lead & Mentor: Spearheaded weekly code reviews and technical grooming sessions for a cross-functional Agile team, reducing production bugs by 20% through the enforcement of rigorous unit testing (JUnit/Jasmine).
Architected & Managed Migration: Led the end-to-end migration of mission-critical financial modules from Java 11 to Java 17, leveraging modern JVM features to reduce memory overhead by 15% and improve application startup times.
API Performance Engineering: Optimized enterprise Spring Boot microservices and Elasticsearch caching strategies, resulting in a 40% reduction in API latency for high-traffic dashboard data.
Infrastructure & Scalability: Partnered with DevOps to orchestrate containerized deployments using AWS ECS and Kubernetes, achieving 99.9% uptime and enabling seamless auto-scaling during peak financial reporting periods.
Security & Compliance: Hardened backend security by implementing OAuth 2.0 and JWT-based authentication, ensuring all integrations with third-party payment APIs met strict PCI-DSS regulatory standards.
UI Modernization: Directed the development of responsive, high-fidelity dashboards using React 18 and TypeScript, establishing a reusable component library that accelerated frontend delivery by 30%.