HARRY HEIN

Senior Product Designer · Engineer-turned-designer · 7+ years
Bangkok, TH.

About

Senior Product Designer with over 7 years of experience transforming product visions into high-impact design systems and user experiences across legaltech, B2B SaaS, and retail/POS. As a code-first designer with a software engineering background, I excel at building Figma plugins, AI-powered design tools, and multi-platform token systems. Proven track record of delivering measurable outcomes, including $10K monthly operational savings, 427% UX ROI, and cutting designer onboarding from 3 days to under 1.

Work

Raytail
|

UX Lead

Remote

Summary

Led UX initiatives for a multi-product retail tech company, overseeing POS, web, and mobile platforms for pharmacy and supermarket operations.

Highlights

Architected the modernization of legacy Windows POS into a unified touchscreen system, delivering 200+ screens across 22 Figma files with zero training dependency at launch.

Built a 3-tier token-based design system for POS, Web, and Mobile platforms, eliminating 47 duplicate tokens and reducing designer onboarding from 3 days to under 1.

Generated $10K/month in operational savings by optimizing cashier workflows, validated via 50%+ task-time reduction through A/B testing.

Led async-first design operations across IS, Dev, CS, Warehouse, and Finance teams in 3 timezones, shipping 200+ screens with zero stakeholder escalations over 24 months.

Grew the design function from a solo role to a team of 2, hiring and mentoring a junior designer and establishing review cadences, design system contribution models, and feedback rituals.

Enforced WCAG 2.1 AA accessibility standards across all product surfaces, including keyboard-first workflows for high-throughput cashier environments.

Lexagle
|

Senior UX Designer

Remote

Summary

Owned the end-to-end design of obligation management features for a Singapore-based legaltech startup, from problem framing to developer handoff.

Highlights

Owned obligation management feature end-to-end, encompassing research, design, and developer handoff for contract managers and legal teams.

Designed a public link form that streamlined contract inquiry workflows, significantly reducing inbound clarification cycles for the legal operations team.

Self-ramped on legal tech domain knowledge in under 4 weeks to design for highly regulated workflows, partnering closely with Product Management to align design decisions with business goals.

Treedots
|

UX/UI Designer

Remote

Summary

Designed and launched the first B2B Supplier Portal and design system for a Singapore-based food supply chain marketplace.

Highlights

Audited the existing product for 4 weeks, meticulously mapping every broken flow and inventory edge case before designing the B2B Supplier Portal from scratch.

Built and launched the company's first design system, covering color, typography, components, and interactive patterns, which remains in use today.

Established a tight handoff process with interactive prototypes, spec docs, and annotations, measurably reducing engineering clarification questions per ticket.

Nexlabs
|

Product Designer

Yangon, Myanmar

Summary

Shipped designs across four diverse industries in 14 months for a Yangon-based product agency, ensuring every project began with a discovery phase.

Highlights

Led a karaoke app as Product Design Owner, conducting 20 user interviews, defining MVP scope, and managing a team of 2 designers, 1 BA, and 3 developers.

Presented design rationale to clients in business-value terms rather than design jargon, building stakeholder confidence in design as a measurable function.

Adventsoft
|

UI/UX Designer

Yangon, Myanmar

Summary

Transitioned from software engineering to product design, leveraging an engineering background to minimize design-to-dev friction and ship implementation-ready specs.

Highlights

Leveraged a software engineering background to transition into product design, shipping implementation-ready specs and minimizing design-to-dev friction.

Delivered high-fidelity prototypes as developer specifications, presenting work to external clients in plain technical language.

Education

University of Computer Studies, Taunggyi
Taunggyi, Myanmar

Bachelor

Computer Science

Courses

Human-Computer Interaction

Languages

English

Skills

Design Craft

Product Design, Design Systems, Interaction Design, Mobile UX, Advanced Prototyping (Figma).

UX Research

User Interviews, Usability Testing, A/B Testing, Analytics, Journey Mapping.

Technical

TypeScript, React, Figma Plugin API, Claude API, HCI, WCAG Compliance.

Leadership

Design Ops, Mentorship, Async-First Workflows, Cross-Functional Stakeholder Management.

Projects

Two Stores. One System.

Summary

Redesigned a legacy Windows POS into a unified touchscreen system for pharmacy and supermarket, delivering 200+ screens across 14 modules with zero training dependency.

From Feedback to 427% ROI.

Summary

Optimized retail POS cashier workflows using a two-lens prioritization method, achieving 427% ROI and 50%+ time savings on critical tasks.

Three Platforms. One Source of Truth.

Summary

Built a multi-platform design system architecture for POS, Web, and Mobile, eliminating 47 duplicate tokens and cutting designer onboarding from 3 days to under 1.

Unified Design Tokens (Figma Plugin).

Summary

Built a Figma plugin that automates token exports across 6 platforms, cutting export time by 50% and reducing naming errors to near zero.

Designer OS AI-Powered Designer Productivity SaaS.

Summary

Designed and built a productivity SaaS for designers featuring an AI-augmented resume pipeline, AI-driven usability testing with persona simulation, and MCP-connected Job Tracker.