Hoang Hai Nguyen

Java Spring Full-Stack Developer with 18+ years of experience delivering Java, Spring and Liferay DXP solutions end to end, from requirements gathering and stakeholder alignment through architecture, development, testing, deployment, and production support across banking, aviation, rail infrastructure, telecom, education, media, and EU public-sector programs  Known for translating complex business and regulatory needs into secure, scalable applications using Spring Boot microservices, REST APIs, messaging systems, and modern DevOps practices across Azure, AWS, and OpenShift, with a consistent focus on stability, traceability, and maintainability in high-availability environments.
 Proven impact on large user populations and mission-critical operations, including a global Sales Information System supporting 2,000 daily users, aviation and airport systems tied to millions of passengers annually, a bank notification engine reaching ~0.5M customers, and enterprise portals serving 2,000+ users, delivering measurable value through faster workflows, reliable integrations, and improved operational visibility.
 Experienced working in multilingual and multicultural environments across Belgium, Wallonia, the UK, and the US, collaborating effectively in French-speaking and English-speaking teams while maintaining long-term delivery cadence in Agile and Scrum organizations.
 Continues expanding capability in AI-assisted development and productivity tooling, applying platforms such as GitHub Copilot and modern AI assistants to accelerate delivery, improve code quality, and strengthen solution design while maintaining engineering standards.