Senior Product Designer · Complex Systems & Responsible AI

I turn complex systems into clear, trustworthy products.

Hands-on Senior Product Designer with 12 years across healthcare, enterprise SaaS, marketplaces, and logistics—specializing in workflows where accuracy and trust matter.

Healthcare UXComplex workflowsResponsible AIDiscovery to prototype
John Taesup Kim holding a marker beside reflective glass
Messy systems, clearer decisions
12 yearsProduct / UX design
6 yearsHealthcare
50+Discovery conversations
Hands-onDiscovery → prototype

Selected work / 01–04

Three healthcare systems. One proof that the method travels.

01 / athenahealth / Healthcare enterprise SaaS

Rules before automation.

A configurable scheduling-rules platform for administrators—and a more transparent self-service experience for patients.

Contribution
Discovery, workflow mapping, research, Figma prototyping
Stage
Researched and prototype-tested before development
Protected case studyEnter password
An anonymized portfolio-safe recreation of the athenahealth patient scheduling experience
Interface recreated from original design work; details anonymized.
An anonymized portfolio-safe recreation of the Ascension AI-assisted social-summary workflow
Interface recreated from original design work; details anonymized.

02 / Ascension / Responsible AI

One view for a fragmented picture.

Surfacing barriers to discharge from scattered clinical and social information—while keeping source evidence visible and decisions accountable.

Contribution
Discovery, workflow synthesis, prototyping, responsible-AI interaction design
Stage
Designs approved and handed off; mid-development when John left
View case study

03 / Kamana + Triage / Healthcare marketplace

A career wallet built to move.

A trusted home for credentials, requirements, and opportunities for healthcare professionals moving from contract to contract.

Contribution
Product strategy support, mobile and desktop workflows, design systems, prototyping
Stage
Shipped and measured
View case study
Kamana healthcare credentialing platform presented on mobile and desktop
Worldwide Express shipping interface showing quote creation, saved quotes, and repeat shipment workflows

04 / Worldwide Express / Logistics transfer proof

The method travels.

Applying the same systems thinking beyond healthcare to simplify quote, booking, and repeat-shipment workflows at logistics scale.

18%Reduction in support-call volume
Contribution
Workflow design, interaction design, prototyping, usability validation
Stage / outcome
Shipped · 18% reduction in support-call volume
View case study

How I work

Clarity before commitment.

I like the part before the roadmap gets obvious—when evidence, constraints, and competing needs still need a shared shape.

  1. 01Discover

    Find the decisions beneath the request.

  2. 02Map

    Make rules and edge cases visible.

  3. 03Prototype

    Create something testable.

  4. 04De-risk

    Expose tradeoffs before development.

More about my approach