Yejun Tak
Senior UX for shipped AI products and enterprise systems.
Shipped Magic Apron at Home Depot and agentic voice AI at T-Mobile. Conducting PhD research on oversight timing for agentic AI.
AI-assisted prototyping moves from ambiguous brief to testable design in days, not weeks. At Home Depot, reduced analyst reporting time by 50%. Twelve years across T-Mobile, Microsoft, Home Depot, and healthcare: AI products, enterprise workflows, and design systems.
Research-led case studies across enterprise AI, analytics, healthcare, fintech, and design systems.
Shipped AI at Home Depot and T-Mobile
Consumer AI assistant, agentic voice AI, multi-role analytics. AI-native product design across two Fortune 500s.
Operational clarity for complex systems
CRM, admin consoles, ITSM triage, internal platform UX. Workflow design for expert users in high-volume operational environments.
Clinical UX for high-stakes decisions
Preventative care platform, clinical documentation workflow, AI-assisted diagnosis. Designing for clinicians and patients where errors have real consequences.
Compliance-aware UX for financial products
Consumer banking onboarding, B2B payments, digital lending, wealth management. Complex financial interactions that build trust through transparency.
Production craft at T-Mobile and Microsoft
Token architecture, component governance, accessibility. Production craft at enterprise scale.
Identity, type, and stories in motion.
Microsoft Substrate Day event content, Warflower for Netflix Animation, BLOXX music-video animation, and Vita healthcare promotion.
Explore Motion Design →12 years across enterprise, healthcare, fintech, and consumer.
Evidence before engineering commitment.
The HCAI Engineering-Handoff Profile reviews current workflows, testable requirements, recovery paths and human oversight costs before a bounded engineering decision.
v0.1-rc.4-candidate · QUICK-6, MCP + Skill · Actual external use and empirical validation remain to be established.
Insufficient evidence. ROI indeterminate.
A bounded engineering decision begins with today's workflow.
Ready to talk about your next product design challenge?
Best fit: teams building AI products, enterprise workflows, or complex systems where the problem is genuinely ambiguous. Open to senior UX, lead product design, and product design roles.