Product Designer reducing complexity without losing meaning

I bring a visual designer’s eye, a builder’s understanding of how digital products are made, and a business-aware approach to UX.

Selected works

Jiu Jitsu World League

Increasing engagement in Jiu Jitsu tthrough gamified digital experiences

Product Opportunity:

Increase repeat engagement beyond tournament registration.

Behavioural Design
Product Strategy
Engagement
View case study

Iberia Observational Study

Reducing login frustrations and negative ratings during flights with Iberia

Product Opportunity:

Increase successful self-service and potentially reduce authentication-related support demand.

User Research
Product Strategy
View case study

Jiu Jitsu World League

Allowing Jiu Jitsu families to login and register multiple users for events

Product Opportunity:

Create a scalable account model for families managing multiple athletes. Reduce checkout friction.

Complex Flows
Systems Thinking
Information Architecture
View case study

Curbcut

Building A National Housing Data Platform

Product Opportunity:

Unified exploration, comparison, export and sharing across complex housing data.

Data UX
Design System
Complex Products
View case study

NESRC / RESNET

Creating a Mental Model For Ecosystem Services That Anyone Can Understand

Product Opportunity:

Turned an interconnected scientific framework into a progressive exploration model.

Information Architecture
Systems Thinking
Complex UX
View case study
I care about clear product thinking, useful interfaces, and design decisions that help users and teams move forward.

Relevant history

Experience

Web UX/UI Designer

Adecco

mar 2026 – may 2026 ·
madrid, spain

Individual contributor towards one of Adecco's biggest accounts. Telefonica.

UX/UI Designer

Curbcut

dec 2024 – may 2026 ·
montreal, quebec, canada

Led product design throughout an assortment of data intensive apps in a startup context.

UX/UI Designer

Jiu Jitsu World League

feb 2023 – mar 2026 ·
orange county, california

Led product design and brand experience for a high-traffic martial arts platform. Focused on usability, trust, interface clarity, and decision-making across complex user journeys.

Lead Web Designer

La Resistance Agency

apr 2022 – Oct 2024 ·
Ottawa, Ontario, Canada

Led web and digital design projects where user clarity, business requirements, and stakeholder alignment shaped the final experience.

Web Designer

La Resistance Agency

May 2021 – Apr 2022 ·
Ontario, Canada

Created visual systems and digital design foundations that improved clarity, consistency, and usability across multiple touchpoints.

Brand Designer

Dtail Studio

Apr 2022 – Jul 2023 · Barcelona, Spain

Worked on brand and interface systems where consistency, hierarchy, and clear communication were essential across multiple user-facing materials.

Senior Graphic Designer

Blacknosaur

feb 2019 – Sep 2021 ·
Madrid, Spain

Led high-visibility design projects, mentored junior designers, and strengthened systems thinking around clarity, hierarchy, and scalable visual decisions.

I appreciate you taking a look at my work and experience.
Send me a message and we can get to know each other.

Contact info

sferminf@gmail.com
Download my CV

UX/UI and product design work · Sebastian Fermin

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