He Zhu
Staff Product Designer · AI Product Design (Prompt / Context / Harness Engineering) · B2B SaaS
zhuhe215@gmail.com
San Francisco Bay Area, CA

Professional Summary

Staff Product Designer with 8+ years building data-intensive B2B SaaS and LLM-powered UX, specializing in the full AI product design stack: prompt engineering (crafting reliable model interactions), context engineering (designing what information the model sees and when), and harness engineering (orchestrating multi-step AI workflows with tool integration, error recovery, and evaluation loops). At Kubit AI, designed Lumos—a natural-language AI experience grounded in processed user data as a single source of truth—to help teams quickly diagnose issues and choose from recommended solution options. Proven founding-level ownership: taking products from 0-to-1 to $4M ARR, bridging design and engineering with robust systems, code literacy, and AI-accelerated iteration.

Experience

Co-Founder · Staff Product Designer
Timo
Dec 2024 – Present
  • 0-to-1 Architecture: Defined product strategy and led end-to-end design for a complex workforce SaaS (scheduling, inventory, procurement) MVP, launched in 3 months.
  • System-Scale Design: Built a scalable design system (design tokens, 40+ components, accessibility guidelines) that reduced design-to-engineering handoff friction and ensured consistency across 5+ modules.
  • Business Impact: Designed real-time analytics and cost-structure dashboards that help customers optimize workforce utilization and lift revenue per employee (≈38%).
  • AI-Accelerated Design: Adopted Figma Make, Pencil, and Stitch as core AI-assisted design tools, compressing concept-to-prototype cycles from days to hours while maintaining production-grade fidelity and design system compliance.
Founding Designer ➔ Staff Product Designer
Kubit AI Inc. – San Francisco Bay Area
Nov 2018 – Nov 2024
  • Product Ownership: Led the end-to-end design of the Kubit AI self-serve analytics platform from concept to production, growing from zero to $4M ARR with 15+ enterprise customers (including Samsung, Vix (TelevisaUnivision), and Pluto TV (Paramount)) and 85% retention.
  • AI Product Design (Lumos): Designed Lumos, a natural-language AI experience built on processed user data as the single source of truth. Owned the full AI UX stack: authored prompt templates & guardrails (prompt engineering), defined the context pipeline—which data, schemas, and user state flow into each model call (context engineering), and specified multi-step orchestration with fallback paths, confidence thresholds, and output validation (harness engineering).
  • High-Complexity Design: Architected core “power-user” features including a no-code formula editor, workspaces, and granular role-based permissions, enabling non-technical users to self-serve insights and cutting analysis time by roughly 74%.
  • Operations & Scale: Scaled the design function from a single designer to support a 50-person cross-functional team, establishing research practices and a tokenized design system that reduced development implementation time by about 40%.
Product Designer
Sportdex – San Francisco Bay Area
Jan 2018 – Nov 2018
  • Growth & Gamification: Designed prediction features and viral referral loops for a consumer sports app, driving 200K+ active users and a 500% boost in registrations during the World Cup.

Core Competencies

Design Leadership & Strategy
0-to-1 Product Development
Founding Designer
Design Systems Architecture
Component Libraries & Design Tokens
Design Operations
Cross-functional Leadership
Product & Research
User Research
Requirements & Discovery
Information Architecture
User Journeys & Flows
Prototyping (low- to hi-fi)
Visual Design
Usability Testing
A/B Testing
AI Product Design & Engineering
Prompt Engineering
Context Engineering
Harness Engineering
LLM-Powered UX
Natural Language Interfaces
Human-in-the-Loop Decisioning
AI-Assisted Prototyping
Copilot & Assistant Workflows
Enterprise & Operations
Approvals & Workflows
Roles & Permissions
Audit Trails
Long-running Processes
Inventory & Procurement
Order Management & CRM
User Onboarding & Activation
Data & Analytics Dashboards

Tools & Technologies

Design Tools
Figma (Advanced)
Sketch
Photoshop
Illustrator
Framer
Research & Collaboration
FigJam
Miro
Dovetail
UserTesting
Linear
Jira
Confluence
Development & Analytics
HTML/CSS/JavaScript
React
SQL
Amplitude
Mixpanel
Google Analytics / GA4
Looker
Tableau
AI Design Tools
Figma Make
Pencil
Stitch
Antigravity
AI Development & Workflow
Claude / Claude Code
ChatGPT
Gemini
Cursor
Codex
Manus

Education

MFA, Web Design & New Media – Academy of Art University, San Francisco
BA, Visual Arts – University of California, San Diego

Focus Areas

B2B SaaS · Data & analytics · Enterprise admin consoles · Permission & approval workflows · Design systems · User onboarding & activation · Long-running, multi-actor processes · Inventory & procurement · Order management & CRM · LLM-powered UX · Natural language interfaces · Copilot/assistant workflows · Prompt engineering · Context engineering · Harness engineering · Multi-step AI orchestration · Human-in-the-loop decisioning · AI-assisted prototyping & design-to-code