SYSTEMS DEVELOPER · AI EDUCATION PLATFORM ENGINEER

Microsoft & Linux full-stack and AI EdTech delivery experience.

Experienced in delivering business-critical web applications, AI education platforms, CRM workflows, databases, dashboards and secure full-stack systems.

Python / FastAPI Node.js / React C# / ASP.NET SQL / NoSQL Microsoft / Cloud

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Trusted by education providers and organisations to deliver scalable, secure and future-ready solutions.

AI Education Platform

AI Marking 7s

Learners 1,248

Secure API Connected

Full Stack React + APIs
SQL + Cloud

Portfolio Showcase
Felix Leung

Over 10+ Years delivering digital systems

7sec AI marking feedback target workflow

New York & UK Award winning and Patent pending Showcases

UK GCSE & A-Level EdTech focus

Profile

Shrewsbury-based systems developer with enterprise CRM, Microsoft stack and AI EdTech delivery experience.

Recent work focuses on LazyExams, a UK GCSE and A-Level learning platform using AI-assisted marking, handwriting capture, learner workflows, analytics and secure production delivery. Earlier work includes enterprise CRM, loyalty, e-commerce, reporting and infrastructure projects for multinational brands.

AI + Education

GCSE/A-Level platform design, AI marking, feedback workflows and learner analytics.

Business Systems

CRM, ticketing, approval workflows, customer journeys and reporting dashboards.

Full-Stack Delivery

Frontend, backend, database, payment, authentication, deployment and support.

Infrastructure

Microsoft Server, SQL Server, IIS, Linux, VMware, SAN, cloud and VPS environments.

Showcase

Award Winning & Patent Pending Showcases

Showcase 01

AI EdTech in UK with patent pending technology

LazyExams — GCSE and A-Level learning platform with AI-assisted marking, handwriting capture and production delivery.

Handwriting capture

Question workflow

AI EDTECH

LazyExams Question & Writing Workspace

AI-assisted GCSE and A-Level learning platform with digital questions, question navigation, handwriting capture and learner review flow.

Student handwritten answer workflow
Question-by-question learning experience
Review, retry and mark-state controls

Stack: Python, FastAPI, Node.js, React, TypeScript, SQL/NoSQL

7 second target

AI tutor feedback

AI MARKING

AI Tutor Feedback & Mark Breakdown

Structured AI feedback with handwriting quality, matched steps, challenge score and mark recommendations, designed to support rapid learner improvement.

AI tutor overall feedback
Feedback approval and reward interaction
Marking, challenge and explanation workflow

Stack: LLM integration, prompt workflows, evaluation logic, secure APIs

Learning notes

Tablet-friendly UX

LEARNING TOOLS

Interactive Notes & Revision Canvas

Support tools for revision, handwritten diagrams and digital note-taking, giving students a more complete study environment beyond question practice alone.

Annotation, drawing and erasing tools
Landscape tablet experience
Reusable note pages for revision

Stack: JavaScript canvas workflows, touch interaction, UX optimisation

Membership

Commerce + rewards

PAYMENTS + SHOP

Student Rewards & Commerce Experience

Integrated membership and reward journeys that connect educational progress with products, shipping information and user account actions.

Commerce and membership touchpoints
Reward-led design for student motivation
Clear call-to-action and order UX

Stack: Stripe, payments, membership logic, user account flows

Attempts 1,284

Avg Mark 78%

AI Feedback 92%

Sync Live

Learning performance, marking outcomes, learner behaviour and operational status presented in a more readable, decision-focused format.

Analytics

Operations dashboard

ANALYTICS

Learning Performance Dashboard

Readable dashboards for question progress, marking outcomes, learner behaviour, subscription status and operational performance monitoring.

Big-number metrics and performance indicators
Subscription, learner and marking visibility
Operational dashboard design thinking

Stack: React, REST APIs, analytics events, dashboards, reporting workflows

Showcase 02

Institutional AI portfolio trading platform

AITradeOS — institutional-grade portfolio analytics, tactical AI engines, execution quality and production certification workflows.

AITradeOS CEO terminal performance dashboard screenshot

CEO analytics

Benchmark views

FINTECH PLATFORM

AITradeOS CEO Terminal & Performance Analytics

Production trading-operations dashboard with equity curves, benchmark comparison, P&L breakdown, risk metrics and executive KPI views for paper and live-readiness workflows.

Real-time portfolio and performance analytics
Multi-timeframe P&L, win-rate and drawdown tracking
Benchmark vs market comparison dashboards

Stack: Python, FastAPI, React, TypeScript, PostgreSQL, REST APIs

AITradeOS portfolio analytics and strategy operations screenshot

Risk monitoring

Strategy ops

RISK & STRATEGY

Portfolio Analytics & Strategy Operations

Operational dashboard for allocation, risk heatmaps, strategy certification, attention queues and activity monitoring across multi-asset paper-trading environments.

Asset-class performance vs benchmark tracking
Risk gauges, concentration and readiness scoring
Strategy audit trails and operational activity logs

Stack: Analytics pipelines, event logging, broker API integration, dashboard UX

Signal scoring

AI reasoning

AI TACTICAL ENGINE

Tactical Signal Grid & Explainable AI Layer

Multi-ticker tactical interface with trend scoring, pattern detection and explainable AI reasoning for trade-setup evaluation, filtering and operator review.

Scored setup grid with tactical filter workflows
Charting with technical context and order panels
Explainable tier-engine decision output for operators

Stack: LLM-assisted reasoning, quantitative scoring models, real-time market data feeds

AITradeOS execution quality and certification screenshot

Execution truth

Certification gates

EXECUTION & DEVOPS

Execution Quality & Production Certification

Execution-truth monitoring with trade-quality grading, latency tracking, reconciliation workflows and staged certification gates before live deployment.

Clean, elevated and critical execution classification
Paper-to-live readiness tiers and consistency checks
Deployment health, observability and release discipline

Stack: Docker, CI/CD, automated testing, Linux cloud deployment, monitoring

Showcase 03

New York Gold award project

Award-recognised digital delivery with global brands, 4As agency collaboration, CRM journeys, e-commerce and campaign platforms.

New York Gold Award CRM automation platform flowchart

CRM journeys

Business logic

NEW YORK GOLD AWARD

New York Gold Award CRM Automation Platform

Participated in designing CRM customer journeys covering onboarding, activation, reminders, sentiment recovery and milestone incentives — connecting digital automation with human follow-up stages.

Milestone-based customer journey mapping
Automated email and reminder logic
CRM intervention and retention workflows

Focus: CRM process design, automation rules, customer lifecycle logic

Global brands

Enterprise delivery

BRAND PORTFOLIO

Trusted Delivery Across Global Brands

Contributed to digital programmes for multinational brands across consumer, healthcare, retail and energy — supporting large-scale campaigns with clear technical ownership and reliable delivery.

Multi-brand digital programme participation
Cross-market campaign and platform support
Enterprise-ready delivery discipline

Focus: Stakeholder alignment, brand-safe execution, production reliability

4As collaboration

Creative + tech

CREATIVE DESIGN

Working Effectively with 4As Advertising Agencies

Participated in creative digital campaigns alongside 4As advertising agencies — translating creative direction into practical builds while keeping communication clear, timely and brand-safe.

Clear creative-to-technical handoff conversations
Brand-guideline-aware interactive design delivery
Fast iteration with agency and client stakeholders

Focus: Agency collaboration, creative communication, interactive campaign UX

Mini-sites

Campaign platforms

MINI-SITE CAMPAIGNS

High-Engagement Brand Mini-Sites

Supported promotional mini-sites and campaign microsites for global brands — from interactive journeys and referral mechanics to product storytelling and membership experiences.

Campaign microsite planning and delivery
Interactive journeys and engagement loops
Multilingual brand experience support

Focus: Campaign UX, engagement mechanics, brand storytelling platforms

Gamification

Rewards systems

ENGAGEMENT SYSTEMS

Rewards, Games and High-Engagement Campaigns

Took part in gamified brand campaigns combining points, bidding, games and purchase incentives — helping turn creative concepts into measurable engagement experiences.

Points and rewards programme mechanics
Interactive games linked to brand journeys
Engagement-led conversion design

Focus: Gamification logic, campaign systems, conversion UX

E-commerce

Biz-flow systems

E-COMMERCE

Consumer Journey & Long-Life Commerce Platforms

Contributed to e-commerce and consumer-journey programmes focused on usability, order value growth and durable business-flow systems that remained stable for years without major rebuilds.

Shopping journey and cart experience support
Business-flow and operations system thinking
Long-term maintainable platform design

Focus: E-commerce UX, operations workflows, sustainable architecture

Multidisciplinary digital production portfolio collage

Full production

Games + CRM

DIGITAL PRODUCTION

Multidisciplinary Digital Production Skills

Supported a broad production mix — mini-sites, games, multimedia, newsletters, databases, CRM applications and e-commerce — helping teams move from concept to shipped digital experiences.

Interactive games and multimedia assets
Database-backed campaign and CRM applications
End-to-end digital production support

Focus: Full-stack campaign production, databases, interactive media

Capability

What I Build

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Bespoke Web Applications

Production platforms using Python, FastAPI, Node.js, React, TypeScript, C#, ASP.NET and REST APIs.

Databases & Reporting

SQL Server, MySQL, MongoDB, data modelling, reporting workflows and analytics dashboards.

Education AI Workflows

AI marking, feedback systems, LLM integration, learner analytics and GCSE/A-Level platform workflows.

Microsoft & Linux Platforms

Windows Server, SQL Server, IIS, ASP.NET/C#, Microsoft 365 workflows and Power BI style reporting; Linux servers, Apache, Nginx, Redis, Docker and VPS environments.

API

Integration & Automation

Payments, analytics, CRM, access control, APIs and reliable process automation.

OPS

Deployment & Support

Git, Linux, monitoring, troubleshooting, testing, security-aware production support and backups.

Experience

Career Summary

2022 — Present

Lead Engineer / AI Systems Architect

XON Communications Ltd, UK

Architect and lead developer of LazyExams; responsible for AI marking workflows, handwriting capture, full-stack services, analytics, access control, payments, deployment and production troubleshooting.

2002 — 2020

Systems Engineer

XON Communications Ltd, Hong Kong

Delivered enterprise CRM, loyalty, e-commerce and digital platforms for multinational brands; built reporting, integrations, secure workflows and long-term support systems.

2006 — 2016

Part-time Instructor

The Chinese University of Hong Kong

Taught Digital Strategy, Information Systems, Information Security, Project Management and Technology Innovation.

1999 — 2002

Interactive Project Manager

Dentsu

Managed technical delivery and enterprise digital projects for international brands.

Education

Education & Certifications

Master of E-Commerce — Curtin University

Bachelor of Business Computing & Economics — University of Winnipeg

Microsoft Certified Professional (MCP) and Microsoft Sales Expert Training

Executive Program: Startup & Pitch Training — University of California, Berkeley