About

Senior Product/UX Designer focused on bringing clarity to complex digital experiences

Senior Product/UX Designer focused on bringing clarity to complex digital experiences

Jaejin portrait

Product / UX Designer with 15+ years across large-scale enterprise and government environments, specialising in translating complex business, people, and technology challenges into intuitive, scalable experiences. I apply systems thinking and human-centred design across digital products, complex service ecosystems, and organisational workflows.

Most recently I was leading UX at squad and initiative level across Vodafone and TPG's digital platforms — owning design direction end-to-end, from problem framing through to delivery, in close partnership with Product and Engineering. Before that, at the Australian Human Rights Commission, I designed accessible public-facing digital services within a high-compliance government environment, working directly with people living with disability to go beyond WCAG compliance and build experiences that genuinely worked for everyone.

WHAT I ENJOY SOLVING

I'm drawn to enterprise systems, regulated industries, and complex UX challenges — government, financial services, insurance, and healthcare — where design problems are consequential and the work has real impact on how people and organisations operate. The messier the problem, the more I want to understand it before anyone moves into solution mode.

Capabilities

Complex service ecosystems

Journey mapping

Cross-functional facilitation

Design systems

Accessibility

Usability testing

Experimentation

Data-informed design

Experience snapshot 

TPG Telecom · Sydney, NSW

UX / UI Designer · Jul 2022 – Oct 2025

Served as the lead UX voice across multiple squads and strategic initiatives, owning design direction end-to-end from problem framing through to delivery in close partnership with Product and Engineering.

Lead Web Designer · Jan 2017 – Feb 2023

Led and mentored a team of 2–3 designers, establishing design standards, critique practices, and career development while fostering a collaborative design culture.

Charles Mikael Partnership · Sydney, NSW

Creative Director | Partner · Jun 2015 – Sep 2016

Delivered digital products, websites, and campaigns for a diverse client portfolio, translating business objectives into practical digital solutions while managing project delivery from concept through launch.

Australian Human Rights Commission · Sydney, NSW

Web Designer · Apr 2011 – Jun 2015

Designed accessible public-facing digital services within a highly regulated government environment, translating complex regulatory obligations into clear, user-centred digital experiences.

Earlier Career · USA (San Jose, CA), Japan, South Korea & Australia

Multi-Disciplinary Digital & UX/Product-Facing Design Roles

Built a broad foundation across product design, UX, UI, front-end development, digital strategy, and business delivery. Worked across agency, consulting, and in-house environments, delivering end-to-end digital experiences while developing the commercial, technical, and strategic capabilities that underpin senior enterprise product design practice.

Experience snapshot 

TPG Telecom · Sydney, NSW

UX / UI Designer · Jul 2022 – Oct 2025

Served as the lead UX voice across multiple squads and strategic initiatives, owning design direction end-to-end from problem framing through to delivery in close partnership with Product and Engineering.

Lead Web Designer · Jan 2017 – Feb 2023

Led and mentored a team of 2–3 designers, establishing design standards, critique practices, and career development while fostering a collaborative design culture.

Charles Mikael Partnership · Sydney, NSW

Creative Director | Partner · Jun 2015 – Sep 2016

Delivered digital products, websites, and campaigns for a diverse client portfolio, translating business objectives into practical digital solutions while managing project delivery from concept through launch.

Australian Human Rights Commission · Sydney, NSW

Web Designer · Apr 2011 – Jun 2015

Designed accessible public-facing digital services within a highly regulated government environment, translating complex regulatory obligations into clear, user-centred digital experiences.

Earlier Career · USA (San Jose, CA), Japan, South Korea & Australia

Multi-Disciplinary Digital & UX/Product-Facing Design Roles

Built a broad foundation across product design, UX, UI, front-end development, digital strategy, and business delivery. Worked across agency, consulting, and in-house environments, delivering end-to-end digital experiences while developing the commercial, technical, and strategic capabilities that underpin senior enterprise product design practice.

AI in My Practice

I use AI as an accelerator — not a replacement for design thinking. It helps me synthesise research, explore design directions, improve documentation, and prototype ideas more efficiently, while maintaining human judgement for product strategy, interaction design, and validation.

Tools

Figma AI

Used to accelerate component variant exploration and early design direction across projects.

Microsoft Copilot

Used to synthesise workshop notes and research findings into structured documentation, reducing turnaround time between sessions.

ChatGPT

Used to explore copy alternatives, prepare facilitation guides, and support ideation during early design phases.

Claude

Used to support ideation, content strategy, and design narrative development across projects.

UserTesting AI

Used to summarise participant observations and compare findings against manual qualitative analysis during usability testing.

AI Toolkit

Figma

UserTesting

ChatGPT

Microsoft Copilot

Claude

This portfolio was designed in Framer with AI assistance from Claude and Figma AI.

This portfolio was created with AI assistance from Claude and Framer AI.

AI in My Practice

I use AI as an accelerator — not a replacement for design thinking. It helps me synthesise research, explore design directions, improve documentation, and prototype ideas more efficiently, while maintaining human judgement for product strategy, interaction design, and validation.

Tools

Figma AI

Used to accelerate component variant exploration and early design direction across projects.

Microsoft Copilot

Used to synthesise workshop notes and research findings into structured documentation, reducing turnaround time between sessions.

ChatGPT

Used to explore copy alternatives, prepare facilitation guides, and support ideation during early design phases.

Claude

Used to support ideation, content strategy, and design narrative development across projects.

UserTesting AI

Used to summarise participant observations and compare findings against manual qualitative analysis during usability testing.

AI Toolkit

Figma

UserTesting

ChatGPT

Microsoft Copilot

Claude

This portfolio was designed in Framer with AI assistance from Claude and Figma AI.

I design for clarity in complex systems where constraints, stakeholders, and operational realities intersect.

Available for Product Design opportunities, consulting and collaboration.