Nadchanon Susutlertpanya
NinMangon
Senior UX/UI Designer
UI designed and delivered as production-ready code, including the motion work that time constraints usually cut. Started as a Front-End Developer before moving into UX for 8 years, so the coding foundation never went away.
Passion
Drive
Graduated in Computer Science and spent a year and a half as a Front-End Developer, then realized people interested him more than systems: why some things click for users instantly, while others leave them guessing. UX had the answers, so that's where the path turned. Eight years on, what still gets him excited is watching what's in his head land on screen exactly as intended, especially the timing of the animation.
Hard Skills
Craft
Every design decision is grounded in Usability Heuristics and the Laws of UX, so there's always a reason behind it.
Research & Analysis
Design
Frontend
Soft Skills
Adaptability
Eight years working with all kinds of people made it clear when to hold ground and when to give way, and the line between them always comes down to whether there's a principle behind it.
Feedback backed by principle, not opinion
Every critique points to a specific heuristic or rule, so the other person can push back with reasons instead of just guessing what I meant.
Speaks the same language as developers
Knowing what's actually hard to build changes the conversation. Decisions get made on what's real, not on insisting the mockup ships exactly as drawn.
Hears what's actually being asked for
Clients describe solutions, not problems. Design only starts once the real problem or goal behind the request is clear.
Follows what testing shows, not what I hoped
When real users don't behave the way the design assumed, it gets changed, no attachment to the original version.
Works with plenty of time or none at all
When the timeline gets tight, knowing what can be cut and what can't is the actual skill.
Experience
Mileage
Work has spanned travel, healthcare, education, consumer services and back-office systems, each with its own set of constraints.
Work
Senior UX Designer
Orange Cap Innovative Co., Ltd.
- Designed and built the Peach & Co. website entirely solo, from UI through to the code and every bit of motion.
- Designed and built SiEIC, a medical innovation registration platform, both the public site and a Payload CMS back office, working closely with the backend and infra teams. Designed the registration form itself as a 5-step flow with inline validation, constant progress status, and a final review step before submission.
- Designed and built a budget-based package picker for Sabuy Wedding, with filtering based on each user's criteria.
- Introduced a Design System used across projects, cutting UI revision time from 2 hours to 10 minutes.
- Mentored 2 junior designers through to Mid-level.
- Led design for SKILLKAMP (KBank), Gother, a liver-specialist back office for Chulalongkorn University, and a dental clinic platform integrated with ERP.
UX Designer
Orange Cap Innovative Co., Ltd.
- Co-designed TAGTHAi (KBank), a travel app supporting Thailand's tourism ecosystem.
- Conducted onsite user research at WashXpress and designed the UI for its Wash–Dry–Fold feature.
- Designed the back office for a liver-specialist medical project at Chulalongkorn University.
- Ran user interviews, card sorting and usability testing, and built the IA, user flows and prototypes.
UX/UI Designer & Project Manager
Playwork Co., Ltd.
- Owned design work while coordinating across developers, testers, accounting, management and external agencies.
- Covered the full process from empathy maps, user interviews and personas through to prototypes and usability testing.
Software Engineer, Front-End
THiNKNET Co., Ltd.
- Built front-end interfaces with React, HTML and CSS.
- Worked in an Agile (Scrum) team.
Education
Computer Science
King Mongkut's Institute of Technology Ladkrabang (KMITL)
Great to meet you.
If you'd like to talk about work, reach out through any channel below.
