AI Application Design Engineer

Engineering AI
with empathy.

I turn emerging AI into products people understand, trust and enjoy—bringing together engineering, computing, design and research.

  • Engineering
  • Computing
  • Design
  • Research
  • Industry

Brush a fruit to drop it · select a fruit to exploreSwipe branches to shake

Experience
& education

  • The Hong Kong Polytechnic UniversityResearch Assistant · Metaverse+ Lab
  • Accel Group Holdings · HKEX 1283AI-Driven Product Engineer · Previously Creative Technologist
  • University College CorkMaster’s in Interactive Media
  • SIA International Art EducationDigital Media Mentor · Part-time

01 — Selected work

Products shaped
by people.

Four projects across care, safety, operations and immersive research. Select one to expand the story.

01 / FORENSIC VR · UCC

Small actions. Meaningful independence.

I designed and prototyped an accessible VR simulation for cognitive rehabilitation in forensic psychiatry, translating motor and working-memory constraints into a structured everyday cleaning task.
MSc Interactive Media · Dissertation awarded Distinction

INTERACTIVE LAB ● Live 3DMouse / touch / keyboard

A Three.js reconstruction of the prototype’s interaction principles for the web. The original Unity / Quest application is shown in the recording below.

My contribution · Interaction

I implemented cumulative collection: three deliberate contacts, separated by a 0.2-second time gate. The design reduces accidental activation and brings instructions into the environment.

My contribution · Task design

I built a five-item capacity state machine that pauses collection until the bin is emptied, creating an explicit sweep–collect–empty loop informed by cognitive load theory.

My contribution · Engineering

I developed the standalone Unity / C# prototype and local CSV event logging, making individual collection events and inter-response intervals available for system verification.

Original VR prototype · recording included in my dissertation presentation
RESEARCH CONTEXT

Designed with constraints. Built to be examined.

Unity 2021 LTS · C# · standalone Quest hardware · diegetic UI · behavioural event logging.

This dissertation focused on system verification and proof of concept. Clinical trials were not conducted during this phase; prototype testing does not establish clinical efficacy.

University College Cork: academic supervision and project support. The Hong Kong Polytechnic University: hardware and XR lab support.

  • Unity / C#
  • Accessible XR
  • Cognitive load theory
  • Local event logging
  • Distinction

02 / CONNECTED CARE · ACCEL × POLYU

Technology worn. Care felt.

I designed Web and Android experiences that connect wearable and ambient sensing with everyday care—making device information understandable and follow-up visible.
University–industry collaboration · Accel Group × The Hong Kong Polytechnic University

INTERACTIVE LAB Web + AndroidIndependent English demonstration

Explore the same care scenario across two interfaces. All people, readings and events here are simulated. Company source code, operational services and private records are excluded.

Design for the body

I make the relationship between person and device explicit: verify the wearer, recognise the device, and show connection and wear status alongside readings. A clear pairing step reduces the chance of interpreting the wrong person’s information.

Design for understanding

I organise information around each device’s capabilities. Wristband, mattress and bedside monitor views need different measurements and states. Familiar units, timestamps and a consistent hierarchy help people understand what they are seeing.

Design for shared action

I connect the family-facing mobile experience with the management view: identify an event, check its context, record a response, and make its status visible. Documentation and campaign materials carry the same care language beyond the interface.

RESEARCH CONTEXT / HUMAN–DEVICE INTERACTION

From physical signals to shared understanding.

This university–industry collaboration connects HCI questions with product delivery: how people interpret bodily signals, how families and care teams coordinate, and how monitoring preserves agency and privacy. My contribution spans cross-platform interaction, interface design, implementation and visual communication. Future evaluation could examine interpretation errors, task completion and perceived workload; these are proposed measures, not reported study results.

MY DESIGN STUDIO / VISUAL COMMUNICATION

Design beyond the interface.

Seven original campaign pieces. Select a piece for its English reading edition and original artwork.

Original artwork by Yuxuan Yang, supplied for this portfolio. English editions adapt the campaign copy and explain the product story; they preserve the original artwork for comparison.

PROJECT FILM / RELATED PUBLICATION

From a working system
to a story people understand.

Watch the supplied project film here, or explore the related connected-care campaign published by AGT Innovations Limited on YouTube.

English synopsis
A connected care system brings together a smart mattress, bedside monitoring and wearable devices. The campaign presents everyday monitoring and timely awareness as ways for families to stay connected when they are apart.

Watch on YouTube ↗Embedded film supplied by Yuxuan Yang. The separate YouTube campaign is published by AGT Innovations Limited. Original audio is retained.
Evidence & scope

Based on the supplied Web and Android operating manuals, the Android release package, the authorised repository view and original campaign artwork. The interactive screens are independent English portfolio reconstructions. Usability and clinical outcome metrics are not claimed.

  • Human–device interaction
  • Web + Android
  • Care workflows
  • English localisation
  • Brand & campaign design

03 / IDSS · ACCEL × POLYU JOINT LABORATORY

From the wrist to a timely response.

I contributed to parametric watch-enclosure design and 3D-print prototyping, the monitoring platform’s interface, and AI-assisted video production. This case connects physical interaction, operational decisions and the communication of a complex sensing system.

INTERACTIVE LAB Pool monitoringEnglish · local simulated workflows

An independent frontend reconstruction of the supplied manuals. Fictional swimmers and events; no live cameras, production services or proprietary application code.

My contribution · Physical design

I used Rhino and Grasshopper to explore the watch enclosure, then participated in 3D printing and assembly. The prototype connects the electronics, case and strap with the body; the supplied records document iteration, not certified waterproofing or ergonomic validation.

My contribution · Interaction

I worked on the monitoring platform: distinguish wristband and video observations, locate an alert, inspect context and restore privacy after review. Status labels accompany colour so urgency does not depend on colour alone.

My contribution · Communication

I developed the script and storyboard and used AI-assisted video production to explain the system. Shot scale, sound contrast and cross-cutting connect the wearer, sensing infrastructure and human response.

RESEARCH CONTEXT / EMBODIED & SAFETY-CRITICAL HCI

Connecting sensing with human judgement.

The Hong Kong Polytechnic University–Accel Group Joint Laboratory provides the industry–research context. The design raises questions about wearable fit, uncertainty in automated alerts and privacy during incident review. A future evaluation could measure alert interpretation, locating a swimmer and returning to privacy mode. No response-time, detection-accuracy or injury-prevention result is claimed here.

13 May campaign · AI-assisted production · original audio
Watch the campaign on YouTube ↗
SCRIPT → STORYBOARD → EDIT

A calm surface. A reason to act.

The five-act script moves from an ordinary summer setting to a safety incident and coordinated response. Select an act to see how the shot and sound choices support that progression.

DESIGN & MAKING / SELECT AN ARTEFACT

A prototype you can trace.

From CAD exploration to print, assembly and on-wrist checks. Open the original material with an English explanation of what it shows.

The supplied Rhino model and Grasshopper definition document the CAD workflow. Campaign scenes are storytelling, not evidence of measured emergency performance. Demonstration timings are shortened and labelled. Original source files and private system records are excluded from this portfolio.
  • Rhino + Grasshopper
  • 3D-print prototyping
  • Human–device interaction
  • Privacy-aware interfaces
  • AI-assisted filmmaking

04 / HUMAN–AI WORKFLOWS

Real operational problems.
Visible, analysable workflows.

I address problems in real enterprise maintenance workflows by turning field reporting, office review, quotations and invoices into a connected digital process. Alongside the operational system, I built a dedicated efficiency-analysis management platform to make handoffs, returns and recorded effort traceable and analysable.

My contribution · Interaction

Mobile task cards, field-specific correction prompts and a compact work-item / pricing row. Each role sees the action it can take next.

My contribution · Engineering

A responsive workflow from drafts to review, a 12-column INDEX and versioned documents. Confirmed data stays distinct from edits in progress.

My contribution · Efficiency analysis

A dedicated management workbench for analysing workflow events, return cycles and recorded human effort. Evidence timelines and reviewed factors help teams locate friction and plan improvements.

INTERACTIVE WALKTHROUGH

One workspace, three perspectives. Switch between Technician, Office and Efficiency analysis to explore the same workflow.

DESIGN LOGIC

Return a question.
Keep its context.

A generic “please revise” message sends people searching. A question attached to the missing equipment model sends the technician back to the relevant field. The office can correct minor details directly and return only what needs site verification.

  1. Capture once, with a clear task and equipment context.
  2. Review the work item beside its price.
  3. Confirm a revision before producing documents.
RESEARCH DIRECTION / NOT A RESULT CLAIM

Does better timing
make help more useful?

My HCI direction asks when assistance should intervene, which evidence people need, and whether a clearer handoff reduces correction effort without adding interruption.

The implemented research workbench supports enrolled cases, versioned observations, event timelines and human review of AI-suggested factors. A future comparison can examine technician and office effort, completion and independent quality together. Manual group allocation does not establish causality.

01 / Traceable states02 / Evidence before inference03 / People retain control

This portfolio is an independently built, frontend-only simulation using fictional records. Research examples are illustrative, not collected findings; AI suggestions are scripted, not live inference. Company source code, accounts, operational data and backend services are not included.

  • Workflow design
  • Human–AI interaction
  • Responsive web
  • Research instrumentation
  • Information architecture
Portrait of Yuxuan Yang
Yuxuan YangAI · Design · Engineering

02 — About

An AI application
design engineer.

I design and build AI-enabled products end to end—from understanding what people actually need to shipping interfaces that work. My background spans engineering and computer science, interaction design, academic research and enterprise delivery.

  1. Engineering & computing

    Systems thinking and hands-on prototyping, from logic to working code.

  2. Design

    Interaction and product design across mobile, web and immersive media.

  3. Research

    Research Assistant at PolyU’s Metaverse+ Lab. Leading digital transformation and product strategy for joint projects with Accel Group, from accessibility research to production-ready design systems.

  4. Industry

    AI-Driven Product Engineer at Accel Group, combining AI-driven development, human-centred UX/UI and engineering for mechatronic maintenance systems.

Experience

The Hong Kong Polytechnic University logo

The Hong Kong Polytechnic University

Research Assistant · Metaverse+ Lab

Oct 2025 – Present · Full-time

Hong Kong · On-site

Lead digital transformation and product strategy for joint-venture projects with Accel Group, delivering the full lifecycle from accessibility research to production-ready design systems.

Connect human-centred research with applied product work across age-friendly care, water-safety monitoring and operational interfaces. Explore accessible VR interaction as an ongoing research direction.

Accel Group logo

Accel Group Holdings Limited

Full-time · Hong Kong · On-site

AI-Driven Product Engineer

Sep 2026 – Present

Drive the end-to-end lifecycle of mechatronic maintenance systems, combining AI-driven development, human-centred UX/UI and engineering to build intelligent operational solutions.

Creative Technologist

Oct 2025 – Aug 2026

University–enterprise cooperation project: brand promotion, digital marketing and design lead development.

SIA International Art Education logo

SIA International Art Education

Digital Media Mentor

Apr 2026 – Present · Part-time

Shenzhen, Guangdong, China · Hybrid

What I bring

A constellation
of possibilities.

Design, engineering and research, connected. Select a star to explore the skills behind the work.

Ten connected practices · Click or use Tab + Enter to explore

Inside the constellation

    Knowledge areas and practice — no proficiency ratings or certifications implied.