I’m Sebs
UI/UX Designer
from Cali, Colombia
- AI-First Designer
- Brand Designer
- Shopify Developer
- Creative Consultant
Recent Work
MissionSquare. Full website redesign. My visual direction was chosen out of five. (via Perficient) Read the case study.
Honeywell. Website redesign, refined alongside Interbrand. (via Perficient, with Interbrand) Read the case study.
Honeywell Aerospace. Website redesign: polished templates, concepts and art direction. (via Perficient, with Interbrand) Read the case study.
Constructora Bolívar. Mobile-first platform for new homeowners’ deliveries. (via Perficient) Read the case study.
Ford. Migration across Ford’s external, corporate and careers sites. (via Perficient) Read the case study.
MundoFit. Shopify store, from redesign to monthly CRO and development. Read the case study.
The Paper Store. E-commerce redesign and component library for a gift retailer. (via Perficient) Read the case study.
Perficient. Internal project management tool and dashboards. Read the case study.
Ours Consulting. Brand identity for a consulting studio.
Barco Products. Website redesign for an outdoor furnishings maker. My visual direction was chosen. (via Perficient) Read the case study.
About me
I’m Sebastián Castillo, a passionate designer from Colombia with over 4 years of experience in creating impactful brands and digital products. I focus on transforming ideas into engaging, user-centered experiences that foster brand growth. Collaborating with businesses of all sizes worldwide, I strive to deliver meaningful and effective design solutions.
Areas of expertise
- 01
Web Design
Websites and web apps designed around what people come to do: a clear structure first, then a visual layer that carries the brand.
- UI/UX Design
- Websites & Landing Pages
- Web/App Design
- Shopify CMS Setup
- 02
Branding and Identity
Identities that start from strategy, not decoration: a logo, a voice and a visual system that hold together on every screen.
- Brand Strategy
- Visual Identity
- Logo Design
- Design System
- Digital Branding
- 03
Shopify & E-Commerce
Shopify stores that load fast, are easy to shop and keep getting better month after month, with changes guided by real data.
- Shopify Custom Themes
- CRO Strategy
- Analytics Setup
- E-Commerce UX
- Store Optimization
- 04
Product & Project Leadership
Projects led from the first brief to launch day: clear priorities, documented tasks, and design, development and the client moving together.
- Product Strategy
- Roadmapping
- Team Coordination
- Sprint Planning
- Launch Management
