Xeng Lor

I’m a Senior Software Engineer with 10+ years building core, production-grade systems in Java/Spring ecosystems—microservices, clean architecture, and cloud-native execution. I bring a “product-mindset” to bridge technical architecture with business value and user-centric outcomes.

My specialization centers on advanced architecture and performance: Domain-Driven Design (DDD), CQRS, Event-Driven Architecture, and Clean Architecture. I design high-concurrency APIs with Spring WebFlux and reactive streams, and I power real-time streaming pipelines using Kafka, Redis, and RabbitMQ.

I also focus on regulated, mission-critical domains. I’ve engineered FHIR/HIPAA-compliant healthcare solutions and multi-tenant API cores with zero-trust isolation using Java 17, Spring Security, OAuth2/JWT, and AWS services—while driving measurable results like throughput improvements, reduced onboarding lead time, and 99.9% uptime for transactional notifications.

Beyond delivery, I lead operational excellence and team velocity. I spearhead DevOps orchestration and CI/CD automation with GitHub Actions/Azure DevOps, and I mentor junior engineers in Agile/Scrum to maintain compliance and engineering standards. I’ve integrated LangChain and OpenAI GPT-4 for automated code analysis and helped teams adopt Cursor AI with RAG-based document retrieval to accelerate internal development velocity.