Zi Hung Kong

Designed and built a proof-of-concept workflow engine for internal operations, featuring role-based permission control, a reusable workflow-evaluation engine, serializable concurrency safety, and change-aware notifications, and drove architecture evaluation (DDD, event sourcing) backed by ADRs, Diátaxis documentation, and end-to-end tests.

• Designed and built a proof-of-concept workflow engine (two internal workflows) on a reusable, logic-gate-style evaluation component, with role-based permission control over who can act on which target
• Evaluated competing architecture approaches (Domain-Driven Design, layered, event sourcing, undo-feature trade-offs), documenting the analysis and decisions as Architecture Decision Records (ADRs)
• Architected the system for scale, sustaining 20M+ event records while maintaining sub-100ms response times
• Eliminated race conditions under concurrent access with Serializable isolation, backed by validation at all system boundaries and end-to-end tests guarding core flows against regressions
• Set up the local dev environment with Docker Compose and a Vite API proxy, streamlining setup for the team
• Authored documentation including functional requirements (FRS) gathered through stakeholder meetings and technical docs structured with the Diátaxis framework
• Side project: shipped a commuter-facing live train-status feature and re-engineered its build pipeline, cutting developer turnaround to under an hour with a reusable, script-driven UI

Facilitate tutorials and provide academic support for software engineering students.

• Facilitate weekly tutorials for 10 students, reinforcing core software engineering principles and project management practices
• Achieved an 83% positive feedback rating, commended for clear content delivery, timely useful feedback, and enhancing students' thinking ability

Re-architected key modules of the annotation pipeline—achieved ~99% underline accuracy, scalable 60-annotation layouts, cheaper/faster prompt-chain grading (~80% alignment), shipped a client-side OCR diagnostic, and authored foundational docs.

• Revamped annotation system to accomplish 99% underline accuracy, maintaining backward compatibility while introducing an auto-indexing feature for annotations
• Designed an annotation layout algorithm supporting up to 60 annotations per page, dynamically aligning side boxes to prevent misalignment or overlap
• Improved AI grading system through prompt chaining and token optimisation, increasing grading efficiency and achieving ~80% alignment with teacher standards while reducing operational costs
• Engineered a client-side OCR diagnostic tool enabling 5 team members to pinpoint information loss instantly, eliminating need to search server logs for debugging
• Introduced a new “compliment” annotation type to highlight strong student writing
• Created detailed first-edition documentation for 3 core systems, clarifying legacy code and design rationale to facilitate future developers and reduce onboarding time

Coordinated IHG participation and handled logistics/communication for the team.

• Coordinated communication between team captains and event organizers for 8 rounds of the Inter Hall Games
• Managed registration and logistical arrangements for both men's and women's basketball teams, coordinating efforts for a total team size of 40

Participated in training and race execution.

• Recognized as a top 1% performer among team members, reflecting exceptional leadership, discipline, and creative contribution
• Trained and led over 20 performers, organizing and executing 6 performances in 8 months