Senior Java Full Stack Developer at United Airlines

Developed and maintained enterprise airline applications for flight reservations, booking management, passenger services, and loyalty programs using Java, Spring Boot, microservices, React.js, and AWS. Built scalable RESTful APIs capable of processing 1M+ customer transactions daily with high availability and performance. Implemented secure authentication and authorization using Spring Security, OAuth 2.0, JWT, and role-based access controls. Designed event-driven solutions with Apache Kafka for real-time flight updates and asynchronous workflows. Optimized PostgreSQL and Oracle database performance via query tuning and indexing, reducing response times by 35%. Automated deployment and monitoring with Docker, Kubernetes, Jenkins/GitHub Actions, and AWS CloudWatch, reducing release cycles by 50% while maintaining 99.95% availability.

Senior Java Full Stack Developer at HostSynq

Worked on an AI-driven SaaS platform for short-term rental automation. Architected and developed Java 17/Spring Boot/AWS microservices and REST APIs supporting booking management, guest communication, ticketing, and operational automation. Implemented RAG solutions using OpenAI GPT-4, LangChain, vector embeddings, and Pinecone to improve contextual response accuracy. Developed AI-powered automation workflows and intelligent service agents to reduce manual effort by 40%. Built semantic search with vector databases and embeddings, and designed event-driven architectures with Apache Kafka for orchestration and notifications. Optimized PostgreSQL and MongoDB with indexing, query tuning, caching, and schema optimization, reducing response times by 30%. Automated build/test/deploy/monitoring using Jenkins, Docker, Kubernetes, AWS, and CI/CD pipelines, reducing deployment time by 60% and maintaining 99.9% availability.