Senior/Lead Java Full-Stack Engineer with 12+ years of experience building, modernizing, and supporting production-grade enterprise applications across backend, frontend, cloud, databases, and AI integrations. I SPECIALIZE IN: ────────── • Java 8/11/17/21, Spring Boot, Spring Framework and Spring Security • Microservices, REST/SOAP APIs and event-driven architecture • Hibernate/JPA, SQL, transactions, indexing and performance optimization • PostgreSQL, MySQL, Oracle, MongoDB and DynamoDB • React.js, JavaScript, TypeScript, Node.js/NestJS and Flutter • Authentication, authorization, third-party integrations and API security CLOUD, DEVOPS & QUALITY: ────────────────── • AWS, GCP, Firebase and serverless application development • Docker, Kafka, SQS, Git, Maven, Gradle and NPM • Jenkins, CircleCI, GitLab CI, SonarQube and CI/CD automation • JUnit, Mockito, unit/integration testing and regression prevention • Production troubleshooting, monitoring, performance tuning and security remediation AI & INTELLIGENT INTEGRATIONS: ────────────────────── • Built and launched a production AI assistant using Java, Spring Boot, OpenAI APIs, PostgreSQL/pgvector and RAG • Experience with grounded responses, prompt workflows, multilingual output, citations, fallbacks and AI cost optimization • Use ChatGPT, OpenAI Codex and Claude Code for architecture analysis, codebase understanding, implementation planning, debugging, testing, code reviews and documentation • All AI-assisted changes are manually reviewed, tested and validated before delivery WHAT I CAN HELP WITH: ──────────────── • Java/Spring Boot backend and full-stack development • Microservice architecture and enterprise application modernization • REST API, database and third-party integration development • Complex bug fixing, performance improvement and production support • AI/LLM and RAG integration into existing applications • Architecture, estimation, code reviews, mentoring and technical leadership I work across the complete Agile SDLC, including requirements analysis, solution design, estimation, development, testing, deployment, release support, documentation and continuous improvement. My industry experience includes AI, healthcare, banking, financial reporting, VAT compliance, e-commerce, education and multi-tenant SaaS platforms. I work independently, communicate clearly and take ownership from requirements through production delivery. Available for long-term remote engagements and ready to start immediately