Evelin Tolentino | UX/UI Portfolio

Projects

Selected Work

Listo — AI-Assisted Legal Readiness for Undocumented Immigrants

Primary researcher on an active mixed-methods study examining information access barriers for undocumented immigrants. Designed a three-function mobile app including an AI plain-language legal interface, community-vetted resource hub, and emergency preparedness system. Research conducted in Spanish with community-based participants.

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Morehouse Interiors

Collaborated with a small interior design business to evaluate and improve their project workflow. Conducted user research, heuristic evaluations, and redesigned their website for clarity and better onboarding.

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SHEIN Circular Ecosystem Redesign

Research-backed redesign of SHEIN's fast-fashion model into a circular economy system. Grounded in primary quantitative research (N=95, r=−0.230, p=.025) proving compulsive buying decreases wellbeing. Applied Fogg Behavior Model and behavioral economics to design Digital Product Passports, gamified sustainability milestones, and a ReCommerce trade-in hub.

L'Oréal AI Routine Builder Chatbot

Designed and developed a product-aware AI chatbot using real L'Oréal brand data from CeraVe, Garnier, Lancôme and more. Users browse and select products, then receive a personalized skincare or beauty routine generated by the OpenAI API. Includes follow-up conversation, product search filtering, and localStorage to persist selections across sessions.

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About Me

Hi! I'm Evelin Tolentino, an incoming MIMS student at UC Berkeley and Human Systems Engineering graduate from Arizona State University (Magna Cum Laude, 3.6 GPA). I design at the intersection of research, systems thinking, and human experience, specializing in UX research, human-centered design, and mixed-methods research for complex systems and underserved populations.

My current work centers on Listo, an AI-assisted legal readiness tool for undocumented immigrants, rooted in primary research conducted in Spanish with community-based participants, combining mixed-methods study design and prototype testing. My previous projects apply behavioral economics to circular design systems, real client UX audits, and functional AI products.

I spent 4+ years as a professional CAD designer and project coordinator in residential architecture, producing construction-ready documentation for luxury residential interiors across concurrent high-stakes projects. That precision is in everything I build.

Architecture taught me that every structure has a logic. UX taught me that every user has a story. I build at the place where both are true.

Skills

Mixed-Methods Research Design (Surveys, Interviews, Usability Testing)
UX Research & Human-Centered Design
Wireframing & Prototyping (Figma, Adobe XD)
Visual Design (Adobe Illustrator, Photoshop, InDesign)
Heuristic Evaluation & Cognitive Walkthrough
Behavioral Economics & Cognitive Load Theory
Information Architecture & Journey Mapping
UX Writing & Content Strategy
HTML, CSS & JavaScript
CAD & Architectural Documentation (AutoCAD, Revit, Rhino, Grasshopper)
Data Analysis (SPSS, Excel, Descriptive Statistics)
Bilingual English and Spanish

My UX Design Process

Empathize – Conduct user research, interviews, and observations
Define – Analyze insights to identify user needs and problems
Ideate – Sketch, brainstorm, and explore design possibilities
Prototype – Build wireframes and interactive mockups
Test – Conduct usability testing and iterate based on feedback

Hi, I'm Evelin