Fernanda Mujica

Fernanda Mujica

UX Research Leader | AI & Research | 10+ Years

Over 10 years of experience turning conversations into insights and insights into impact. UX Researcher for two Unicorn Startups, led an award-winning Service Design agency, and now Senior Researcher at Brazil's most valuable brand, Nubank.

My approach is deeply human-centered yet AI and strategy-driven: understanding what people need and making it measurable.

BrazilianDog loverMystery readerFortnite player

"I speak the language of customers, product, and design"

Professional Journey

2026
Cora
Staff UX Researcher
2022–2025
Nubank
Senior UX Researcher & Design Hub Lead
2020–2022
Take Blip
Senior UX Researcher
2019–2021
Wiz.Co
Senior Service Designer
2013–2018
Avocado Design
Founder & Service Designer
Brazil — Available for remote work and relocation

Skills and Competencies

Research & Methods

Mixed-MethodsGenerative ResearchEvaluative ResearchResearch RoadmappingFocus GroupsUsability TestingA/B TestingMarket Research

Quantitative & Strategy

MaxDiff ScalingConjoint AnalysisSurvey DesignCustomer SegmentationMarket SizingNPS / CSAT / CESStatistical ModelingSean Ellis Score

Leadership & Operations

Research OpsTeam LeadershipStakeholder ManagementTraining & MentorshipAgile MethodologiesScrum / KanbanService DesignProduct Management

AI & Technology

Synthetic UsersCursorContext PromptAI RevisionAutomatized MonitoringFigmaDovetailQualtrics

Education

Interaction Design Foundation

AI for Designers - Long Course

Interaction Design Foundation

Instituto Europeu de Design Madrid, Spain

Master of Strategic Design Labs and Service Design

Instituto Europeu de Design Madrid, Spain

FGV - Fundacao Getulio Vargas

Technology & Smart Cities

FGV - Fundacao Getulio Vargas

Universidade de Brasilia (UnB)

Bachelor in Social Communication, Advertising

Universidade de Brasilia (UnB)

Impact in Numbers

Research-driven results that transformed user experiences

Nubank
$2B+

Revenue generated after One-Click Transfer launch

MY ROLE Mixed-methods research, competitive benchmarking and UX guidelines to reduce funnel abandonment

From zero to billion with instant money transfer feature

PPW
87%

Ticket reduction in PPW platform

MY ROLE 45-day research sprint with ticket analysis, journey mapping and stakeholder interviews

Reduced support tickets from 40+ to ~5 monthly, transforming platform usability

Nubank
67%

Security-related churn reduction in Open Finance

MY ROLE Behavioral research connecting financial behavior, trust, and product adoption

Churn dropped from 15% to 5% after implementing control-focused features

Nubank
24M+

Open Finance consents achieved

MY ROLE End-to-end research leadership translating fear into measurable product opportunities

Nubank became #1 in Open Finance adoption in Brazil

Avocado
100+

Service Design projects nationwide

MY ROLE Led Service Design initiatives across multiple sectors and regions

Delivered end-to-end service design projects transforming customer experiences across Brazil

SENAI
$2M+

Invested in projects shaped with Design Sprints

MY ROLE Facilitated Design Sprints to validate and shape high-investment projects

Strategic design thinking applied to major innovation initiatives

In Action

Facilitating workshops, presenting insights, and collaborating with teams

Presenting Custom Research Notebook at conference
Outdoor team workshop with design boards
Leading workshop session
Facilitating design thinking
Entrepreneurship event
Collaborative workshop
Professional workshop

My Research Process

1

UNDERSTAND

Problem, team needs, specific questions, business objectives, context and constraints.

2

EVALUATE

Previous issues with product/service, research history, existing data to avoid duplication.

3

DEFINE

Who to consult (segments, personas), ideal groups, recruitment, timeline and budget.

4

COMBINE METHODS

Quantitative or qualitative, sizing, behavioral, mixed-methods as needed.

5

PLAN STRATEGY

Detailed research plan, tools, timelines, deliverable formats, presentation structure.

6

CREATE ANALYSIS MAP

What to cross-reference, framework to answer questions, success metrics.

7

VALIDATE WITH TEAM

Sessions with PM, Designer, Engineering. Validate technical feasibility, align product strategy, ensure design conception.

Case Studies

Research methodologies that drove measurable business outcomes

One-Click Transfer: $2B+ Revenue

From zero to billion with instant money transfer

Challenge:

65% drop-off at bank selection screen; UX inferior to competitor (Mercado Pago)

$2B+
Revenue
Generated
65% → 20%
Drop-off reduction
At bank selection
3.5M
Users impacted
Improved experience

PPW Platform: 87% Ticket Reduction

45-day research sprint transforming platform usability

Challenge:

40+ monthly support tickets preventing partners from serving home equity customers efficiently

87%
Ticket reduction
40+ to ~5 monthly
60%→85%
CSAT
Satisfaction improved
8
Flows mapped
Complete journeys

Credit Card Aggregation Feature Discovery

7M+ users with consolidated credit card view

Challenge:

How can we use Open Finance credit card data to deliver a feature customers will actually use daily?

72.5%
SUS Score
MVP design
58%
Daily usage intent
Users interested
7M+
Users impacted
Consolidated view

Fear & Adoption: Trust Unlocked

67% churn reduction | 24M+ consents | #1 in Open Finance Brazil

Challenge:

Security fears were causing 15% churn in Open Finance. How could we turn fear into a competitive advantage?

67%
Churn reduction
15% → 5%
4.0→4.8
Security index
Perception improved
2.4M
Users secured
Felt more secure

AI & Research Specialist

I specialize in AI for Research, providing mentorship on tools like Claude, Cursor, and others. I train researchers and designers to leverage AI for complex analyses, predictive insights, and building custom tools.

AI Training & Mentorship

Trained 20+ Researchers and Designers on Claude, Cursor, and AI tools for complex analysis and predictive insights

Tool Building

Built custom AI tools for research planning, prioritization frameworks, and interactive research visuals

AI Adoption Programs

Led AI adoption initiatives helping teams integrate AI into every part of the research process

How I Use AI in Research

Cross-Geo & Cross-Product Analysis

Copy Vocabularies

Predictive Insights

Interactive Research Visuals

Agents & Skills

Research Cross-Reference

Tools I Built with AI

UX Research Co-pilot
Planning

UX Research Co-pilot

AI-powered tool to build complete research plans in 15 minutes. Includes methodology recommendations, sample sizing, and interview guides.

Try it
FRIED RICE Framework
Prioritization

FRIED RICE Framework

Collaborative prioritization tool using RICE methodology with segmentation/sizing. Enables async team voting to define strategic roadmap items.

Feature + Reach + Impact + Effort + Dependency
UX Research Maturity Calculator

UX Research Maturity Calculator

Assess your team's research maturity level and get personalized recommendations to elevate your practice.

Try it
Rolit - Career Assistant
30+ Approved

Rolit - Career Assistant

AI-powered platform to adapt resumes, write cover letters, train for interviews, and track applications. Up to 98% ATS match in 3 minutes.

Visit rolit.site

Leadership Experience

Building and guiding high-performing design and research teams

Testimonials

"Fernanda's mentorship helped me reduce research time drastically by teaching me to choose only the necessary methodologies. Now our team applies research with realistic timelines and gets actionable insights faster."

Lucas Borges

Product Designer

"I'm entering the UX Research world, and Fernanda provided invaluable guidance on evaluating what's feasible and interesting for clients. She helped me focus on what would truly impact the product and delight users."

Fernanda Ribeiro

UX Researcher

Leadership Highlights

Avocado Design

2013–2018

Service Designer & Founder

Led team of 11 designers

Take Blip

2020–2022

Senior UX Researcher

Supported 7 product squads

Nubank

2022–Present

Design Hub Lead & Senior UX Researcher

Leading 7 platform designers

Articles & Insights

Thoughts on user research, AI, and the craft of understanding people

How to Write Better Prompts: Structure and Techniques - slide 1

How to Write Better Prompts: Structure and Techniques

A practical guide to crafting effective AI prompts using proven structures like Role + Context + Task + Constraints + Output format.

⏱️ 5 Minutes or 5 Weeks? How to Know If You REALLY Need to Do User Research using AI

⏱️ 5 Minutes or 5 Weeks? How to Know If You REALLY Need to Do User Research using AI

A practical guide to deciding when to invest in full user research versus using AI tools for quick insights.

Please Pick Up the Phone! It Might Be Me

Please Pick Up the Phone! It Might Be Me

That's when I remembered how much we underestimate the simple stuff. Sometimes, the best insights come from the most unexpected place.

Thank You

I appreciate your time and consideration. I'm passionate about research that drives meaningful product decisions and excited about potential collaboration.

Available For

Relocation
Full-time
Part-time
Consulting
Leadership Roles

Contact Information

Get in Touch →