• Architect, design, implement, and maintain high-throughput backend services using Java and Spring Boot frameworks • Lead the modernization of our technology stack: identify technical debt, propose upgrade paths, manage migrations, and improve system observability, monitoring, and tooling • Collaborate with cross-functional groups (product, security, DevOps/infrastructure, compliance) to ensure services meet business needs, regulatory requirements, and operational excellence • Set and enforce high engineering standards: code quality, test coverage, performance optimization, scalability, resiliency, and observability • Mentor and guide other engineers: provide technical leadership, review designs and code, promote best practices and knowledge sharing across the team • Participate in architecture discussions, drive decisions around microservices, API design, data layer strategy, caching, messaging, high-availability systems, and cloud infrastructure • Proactively identify bottlenecks or areas for improvement, propose and implement solutions to improve reliability, performance, developer productivity, and cost efficiency • Balance feature delivery with infrastructure evolution: ensure that new functionality is built on maintainable, future-proof foundations