Experience & Qualifications

UX Systems Architect & Front-end Engineer with 20+ years of experience across architecture, implementation, and UX.

View resume in PDF

Professional Experience

  • UX Systems Architect / Front-end Engineer

    Nov 2012–Present
      • Surfaced architectural, implementation, and UX risks early so teams could make informed decisions before issues hardened into delivery or compliance problems.
      • Stabilized front-end patterns across projects by tightening inconsistent UI behavior, semantics, and accessibility before debt spread.
      • Applied Section 508/WCAG standards as implementation discipline, catching issues that automated checks or visual review alone would miss.
      • Used AI to pressure-test ideas, review edge cases, and accelerate delivery while retaining architectural ownership and judgment.
      • Translated between design intent, engineering constraints, and real user behavior to keep solutions buildable, coherent, and usable beyond the demo.
      • Identified fragile or over-engineered implementation paths, then simplified them into maintainable patterns teams could support.
  • Sr. Java Developer

    May 2012–Oct 2012
      • Designed and implemented Java/JEE-based web applications, integrating front-end and back-end components.
      • Delivered system documentation and production support.
  • Sr. Webmaster/Java Developer

    Apr 2006–Apr 2012
      • Led development of responsive web apps and mobile-first sites using Responsive Web Design (RWD).
      • Managed deployment, access controls, and analytics reporting.
  • Software Engineer

    Jun 2004–Mar 2006
      • Analyzed user requirements and designed, developed, and maintained desktop applications, GIS-related tools, and internal utilities.
      • Designed and maintained JSP-based web applications, Oracle-backed systems, and internal desktop utilities. Handled implementation, documentation, and user support lifecycle.
      • Handled implementation, documentation, and user support lifecycle.
  • Computer Science Intern — GIS / Gazetteer

    Jan 2002–May 2004
      • Built custom UI tools in Visual Basic 6.0 for metadata editing in Gazetteer database.
      • Supported GIS/Gazetteer workflows with ESRI tools, ArcCatalog, VBA/Visual Basic, and ArcObjects.
      • Conducted metadata research and taxonomy refinement for geographic place-names system.

Intercultural Experience

Lived in Macau and Japan; bring Cantonese and Japanese language experience to cross-cultural work.

Impact Highlights

  • Evaluated LLM-driven architectural approaches and surfaced implementation risks early.
  • Refactored legacy components to improve ARIA compliance and reduce accessibility defects.
  • Established a component audit process to reduce design-dev mismatch.
  • Tightened front-end patterns to prevent subtle UI and accessibility regressions.
  • Mentored developers on semantics, refactoring, and user-first implementation.

Education & Certification

Skills & Tools

  • Development & Accessibility

    • Front-end: Vue, React, Svelte, Angular, RWD, PWA, SASS, USWDS
    • Back-end: Java, Spring, C#, .NET, Oracle, SQL Server, MongoDB, Keycloak
    • Accessibility: Section 508, WCAG, VoiceOver, NVDA, TalkBack, AMP, WAVE, ANDI
  • UI/UX & Research

    • Design: Adobe XD, Axure RP, Balsamiq, Photoshop, Illustrator, Tableau
    • Research/Analysis: Interviews, surveys, usability evaluations, card sorts, Google Analytics, R, Morae
  • Developer Tooling

    • IDEs: VS Code, WebStorm, Eclipse, Visual Studio
    • Version Control: GitHub, GitLab, Azure DevOps, CodeCommit, SVN
    • Build/Delivery: Docker, Jenkins, SonarQube, Nexus, Sentry, Apache HTTP Server, Apache Tomcat, AWS, WordPress
  • debye.leong@proton.me
  • linkedin.com/in/debyeleong/