Alex Au-Yeung

Technical Leader & Founder

With 20+ years building and scaling digital products across startups, adtech, and ecommerce. Blends hands-on engineering with strategic leadership — from architecting full-stack systems in React, NextJS, and Flutter to leading distributed teams and shipping AI-driven consumer products. Proven record of turning ideas into market-ready platforms, including a livestream marketplace and multi-user AI chat app.

Experience

Quintis Studios — Consultant / Fractional CTO

Sept 2024 - Present

Advised local businesses on scaling digital presence and modernizing ecommerce infrastructure. Designed and launched multiple AI-driven applications exploring LLM integration and generative interfaces.

  • Defined technical strategy and product roadmap for client transformation projects.
  • Architected and deployed production-ready AI applications including:
    • Brekky.news: News aggregation platform using clustering and timeline generation to group related stories. MVP built in 1 week.
    • CHAD: Multi-user AI chat platform enabling collaborative conversations with LLMs. MVP built in 6 weeks.

Exchvnge / Livfie Inc — Co Founder

Jan 2019 - Present

Built and scaled a livestream commerce platform for vintage fashion, connecting independent sellers with global audiences. Led technical vision, product development, and analytics strategy.

  • Implemented referral system that increased MAU by 20% in a 2 week period.
  • Led development team to deliver end-to-end platform across iOS, Android, and web, supporting multi-user livestream sessions
  • Drove roadmap decisions aligned with user behavior insights and monetization strategies.

Freelance — Full Stack Developer

Jun 2017 - Present

Delivered full-cycle development projects for ecommerce and retail clients.

  • Helped local businesses modernize ecommerce solutions and social media strategies
  • Helped DesignerCon launch their own NFT project as part of their new VIP ticketing system

InSkin (Hong Kong, Singapore) — Technical Operations Manager

Jun 2015 - Jan 2017

Expanded publisher network by 200% and increased ad inventory by 500% across APAC.Led regional adtech operations across publisher and agency partnerships. Oversaw campaign delivery, optimization, and technical onboarding for partners.

Investible.vc (Hong Kong) — CTO

Oct 2014 - June 2015

Built and launched an invite-only investment platform connecting high-growth startups with accredited investors. Led product design, system architecture, and engineering delivery from concept to deployment. Collaborated with investment and due-diligence teams to streamline deal evaluation workflows.

InSkin (Hong Kong, Singapore) — Technical Account Manager

Apr 2013 - Oct 2014

Managed technical integrations for new publishers and agencies. Collaborated with creative teams to deliver high-impact digital ad formats and optimize campaign performance across APAC.

fluid (Hong Kong) — Development and Technology Head

Oct 2010 - Apr 2013

Led development and digital production at one of Hong Kong's leading agencies (later acquired by PwC). Directed multi-disciplinary teams delivering large-scale digital campaigns for enterprise clients.

Education

Swinburne University of Technology, Melbourne — MSc of Multimedia

2004 - 2006

University of Hong Kong, Hong Kong — BSc in Computer Science and Information Systems

2001 - 2004

+61472605905

alex@a-y.io

linkedin.com/in/thatalexay/

github.com/thatalexay/

Skills

Core Strength

Full-stack product architecture, team scaling, rapid prototyping, growth strategy

Leadership

Mentoring, stakeholder management, agile delivery, cross-functional collaboration

Tech Stack

React, React Native, Flutter, NextJS, GCP, AWS, SQL, MongoDB, Docker

AI

Prompt Engineering, multimodal generative AI prototyping, LLM based product integration

Methodologies

Agile, Scrum

Languages

English | Cantonese | Mandarin

Interested in collaborating? Get In Touch