Mijin Kim

UI/UX & Visual Designer · Auckland, NZ

Mijin Kim

UI/UX & Visual Design · 6+ Years

I'm a UI/UX & Visual designer who has spent 6+ years as the sole designer at Nova Energy — owning end-to-end design for Megatel and Wise Prepay across energy and telecommunications. I specialise in turning complex services into simple, intuitive experiences, and I believe the best design is invisible.

Figma Expert Design Systems AI Workflows Developer Handoff NZ Permanent Resident Based in Auckland, New Zealand
0 Years of experience in NZ
0 Brands owned as sole designer

Capabilities

What I Do

View my projects →

From research to final handoff, I work end-to-end. Here's where I'm strongest.

Figma — Expert Level

My primary tool for everything: wireframes, hi-fi design, prototyping, design systems, component libraries, and developer handoff. I use Auto Layout and design tokens across all projects to ensure consistency and scalability.

Design SystemsAuto LayoutPrototypingDev HandoffComponentsDesign Tokens

HTML / CSS + AI-Assisted Dev

I can write and edit HTML and CSS directly, which makes me a much better collaborator with engineers. Using Cursor with AI assistance, I can build and modify complete websites — including this portfolio. I bridge the gap between design intent and technical implementation.

HTML & CSSCursor AIWebflowFramerTailwind CSSBasic JS

AI-Integrated Workflows

I use AI tools throughout the design process — not as shortcuts, but as a way to explore more ideas faster and make smarter final decisions. On Wise Prepay, an AI-assisted workflow reduced production costs by ~50% vs. outsourced agency work.

MidjourneyChatGPTGeminiSoraRunwayNanobanana

Marketing & Brand Design

Beyond product design, I design marketing campaigns, social content, and brand systems. Having built and maintained brand identities for Megatel and Wise Prepay, I know how to keep product and marketing visually consistent and on-message.

Brand IdentityCampaign DesignSocial ContentArt DirectionAfter EffectsMotion Design

Tools

Figma · Photoshop · Illustrator · After Effects · Midjourney · ChatGPT · Gemini · Cursor AI · Webflow · Notion · Zeplin · Google Analytics

Background

Career

Current Role

Oct 2019 — Present · + 6 years

Nova Energy · Auckland, New Zealand

UI/UX Designer — Lead Designer

As the only designer across two brands — Megatel (broadband & mobile) and Wise Prepay (prepaid energy) — I owned the complete design process from user research and strategy through to Figma design systems and developer handoff. Worked in an Agile environment, collaborating closely with CX, Marketing, PM, and engineering teams.

  • Led end-to-end redesign of My Megatel app — a text-free UI for Korean and Chinese users, reducing support calls by 10% and increasing auto-payment adoption
  • Rebuilt the Wise Prepay website from a trust problem up — character-led storytelling, simplified messaging, AI-assisted production that cut costs by ~50%
  • Built and maintained a Figma component library + design tokens adopted across product and marketing teams
  • Delivered multi-channel campaigns driving measurable increases in user conversion and retention
  • Integrated AI tools (Midjourney, Sora, Runway) into production workflows, enabling faster iteration and eliminating reliance on external agencies

2018

Tasman International Academies · Auckland, New Zealand

Level 7, Diploma in Digital Design & Web Development

Focused on digital design, front-end development, and interactive web experiences. Built practical skills in responsive web design, interaction principles, and project-based creative workflows.

2015 — 2017

Woongjin Co., Ltd · South Korea

Web designer

Website & Microsite Management Managed and updated marketing websites and promotional microsites, ensuring seamless functionality and visual appeal.
Marketing Content Design Developed high-quality marketing content and visual assets for global digital campaigns to support international sales objectives.

2012 — 2014

Samsung Electronics · South Korea

Web designer

Multi-Mall Management Managed and maintained the design and operational consistency of 12 official external B2C e-commerce platforms.
Sales-Driven Design Designed high-impact digital assets, including product detail pages and promotional banners, specifically optimized for B2C sales conversion.
Brand Integrity Ensured 100% alignment with Samsung's global brand frameworks across all digital and marketing outputs to maintain a unified customer experience.

Contact

Get in Touch

Let's work together

I'm currently available for new opportunities in Auckland. I'm looking for a team where I can contribute long-term and grow into a role that bridges design and product.

Open to new roles

NZ Permanent Resident · Auckland-based · Hybrid or on-site

Email mijinkim6267@gmail.com Phone 020 4157 3002

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