• Lead the design, development, and scalability of core Java-based backend services that power our multi-tenant platform. • Architect and optimize platform components to support high-throughput, low-latency, and mission-critical workflows. • Integrate and manage core data systems (e.g., relational DBs, Redis, Elasticsearch, LDAP) to ensure performance, availability, and fault tolerance. • Drive the modernization of backend services, refactoring legacy Java components and adopting modern patterns (e.g., reactive programming, event-driven architectures). • Champion best practices for Java development, testing, observability, and deployment in a distributed, microservices-based environment. • Collaborate cross-functionally with teams across DevOps, Security, SRE, and Application Engineering to build robust platform capabilities. • Evaluate and implement scalable solutions for authentication, authorization, tenant isolation, and configuration management. • Mentor engineers across teams in deep Java design principles, debugging complex issues, and engineering for reliability. • Develop and maintain platform APIs, service orchestration logic, and critical workflows that support core business operations. • Identify and remediate bottlenecks in Java services, JVM performance, GC tuning, thread management, and memory footprint. • Build automation and guardrails for developer productivity and service reliability (CI/CD pipelines, code linting, config-as-code, etc.). • Partner with architecture and leadership to drive long-term technical strategy and platform evolution.