Crafting clarity into meaningful design
I'm Tarn Wuttiporn, a Senior UX/UI Designer with over 7 years of experience creating thoughtful digital products. I believe great design happens when we deeply understand people's needs and translate them into experiences that feel both intuitive and delightful.
My Story
My journey into design began with curiosity about how people interact with technology. Starting as a Junior UX Designer in 2016, I was immediately drawn to the challenge of making complex systems feel simple and accessible.
Over the years, I've had the privilege of working across diverse industries—from educational technology to fintech—each teaching me something new about human behavior and design problem-solving. What excites me most is the moment when research insights transform into design solutions that genuinely improve people's lives.
Today, as a Senior UX/UI Designer, I focus on building design systems and leading teams that create products with both emotional resonance and functional excellence. I believe the best designs are invisible— they work so well that users never have to think about them.
Expertise & Skills
Areas where I focus my energy and continue to grow, always with the goal of creating better experiences for users.

Product Design
End-to-end product experiences from concept to launch, focusing on user needs and business goals.
UX Strategy
Research-driven design decisions that align user experience with strategic business objectives.
Design Systems
Scalable design languages and component libraries that ensure consistency across products.
Human-Centered Design
Empathy-driven approach that puts real user needs at the heart of every design decision.
User Research
Qualitative and quantitative research methods to understand user behavior and validate design solutions.
Team Leadership
Leading cross-functional design teams and fostering collaborative, creative environments.
Career Journey
Key milestones and experiences that have shaped my approach to design and leadership.
Senior UX/UI Designer
Devsmith
Designing thoughtful systems, digital products, and user experiences with a human-centered approach. Leading design initiatives that bridge user needs with business objectives.
Product Owner
100 CHILLI
Oversaw product strategy and feature development from concept to launch. Collaborated with cross-functional teams to define requirements, prioritize roadmaps, and deliver impactful digital solutions.
Design Manager
Obelisk Development
Lead a multidisciplinary design team to build scalable design systems and user-centered digital products. Focused on improving usability, design quality, and collaboration across product teams.
UX/UI Designer
20Scoops Venture Capital GmbH & Co. KG
Worked with various clients on mobile apps, web platforms, and design systems across multiple industries, building expertise in diverse design challenges.
Junior UX/UI Designer
Wisdom Lanna Co.,Ltd.
Designed iOS vocabulary learning game with research-driven UX for children's educational journey. First experience in user-centered design methodology.
Design Philosophy

I believe great design is invisible. It works so seamlessly that users never have to think about it— they can focus entirely on what they're trying to accomplish. This philosophy drives me to create experiences that feel natural and effortless.
My approach combines systems thinking with deep empathy. I start by understanding the real problems people face, then build design systems that can scale those solutions consistently across products. Every decision is grounded in research, tested with users, and refined based on real feedback.
Design isn't just about making things look good—it's about making them work better for the people who use them. When we balance usability with emotion, functionality with delight, we create experiences that truly matter. Collaboration and mentorship are essential parts of this process—the best solutions emerge when diverse perspectives come together.
What Drives Me
Beyond design, I'm motivated by the opportunity to solve meaningful problems and help teams build products that genuinely improve people's lives. I find energy in mentoring other designers and fostering collaborative environments where great ideas can flourish.
Looking Forward
I'm excited about the future of design—especially how emerging technologies can create more accessible and inclusive experiences. My goal is to continue growing as both a designer and leader while contributing to products that make a positive impact.
Rate Card
Public rates for projects communicating primarily in Thai and English at conversation level. Engagements can be scoped as day rates, sprints, or retainers.
Policy: TH-first communication • EN (conversation level)Service | Scope | Timeline | Rate (THB) | Notes |
---|---|---|---|---|
Discovery CallFree | 30–45 min to clarify goals, constraints, and success metrics | 30–45 min | — | Google Meet / Zoom |
UX/UI Day RateMost Popular | Hands-on design: flows, wireframes, UI screens, quick prototypes, stakeholder reviews | 5 hours / day | ฿12,000–18,000 / day (5 hrs) | • Overtime after 6pm (TH): ฿2,100 / hour • Backoffice with repetitive states / no new system: ฿1,800 / hour • Volume discounts for 5+ days |
Product Design Sprint | 5-day sprint: map → sketch → decide → prototype → test | Fixed 5 days | ฿65,000 / sprint | Includes 5–7 user tests + next-steps report |
Design System Setup | Tokens, type scale, colors, components, guidelines, and handoff | 1–3 weeks | ฿30,000–85,000 | Depends on platform scope and component count |
Usability Testing | Plan, script, recruit (client-provided), conduct, analyze, and report with actionable insights | Per project | By quote | Scope by rounds and participant count |
Design QA Review | Verify deliverables against requirements; provide clear fix lists with diagrams or annotated images. (Advisory only — no direct hands-on design) | Hourly | ฿1,100 / hour | Ideal for pre-handoff or pre-launch checks |
Monthly Retainer (Advisory) | Consulting, design direction, reviews, roadmap shaping, and cross-functional alignment (no hands-on design) | Per month | Custom quote / month | Typical cadence: weekly sessions + async support |
- • Rates exclude VAT and third-party costs (e.g., incentives, tooling).
- • 50% deposit to start, balance on delivery (for fixed scopes).
- • NDAs welcome. Deliverables available in Thai/English.
- • Overtime policy applies after 6pm (Thailand time).
Let's Create Something Great Together
I'm always interested in discussing new opportunities, design challenges, and ways to create better user experiences. Let's connect and explore how we can work together.
