User Experience Design Portfolio of Martina Pérez

A little bit about my background

I love thinking about how to solve complex user problems. I always start my UX process trying to understand the business goals. Along the way, I challenge the assumptions and my own design decisions. I also enjoy bringing up new ideas to boost effectiveness in the entire UX Design process.

My end goal as a UX Designer is to bridge the gap between UX & Product/Devs, acting as a facilitator that drives discussions whenever possible based on the insights of data. 



UX Designer
Schibsted · 2016 - Present

I was the UX Lead of 2 internal projects. The first is a Web internal platform that enables users to create segments of audience based on targeting criteria using data science and predictive models. I’d been working 3 years in this project. I was in a team of 8 designers where I collaborated with the UX research team to design usability research studies and created necessary materials for test sessions, producing multiple concepts and prototypes to test them and soliciting feedback in design critique sessions.

In the last few years, I was also in charge of the user research. Working very closely with the PM, I validated and tested design solutions and integrated qualitative and quantitative data into design work and iterations, also presented research findings to product team and engineers.

The second project I worked on was a Search global component to be used across the international Marketplaces own by the company. I helped facilitate ideation sessions and workshops with internal teams. I worked closely with product teams to identify research topics, define and conduct research, and plan and prioritise strategic design work in agile, sprint environment.

See Case study: Early Product Definition: Validating Assumptions and Facilitating Data Driven Decision Making


UX Designer
Side Project about Conversational Interfaces · 2018

I worked with an Android Engineer on a conversational interface that allows users to listen & reply to their instant messages aloud while driving. The challenge here was to design a conversational interface in the simplest and most natural way as to enable users to interact with the app without even being aware of doing it.

The context (while people are driving), the accessibility (difference responses of the system according to genre) and the limitations of technology (Google Cloud Text-to-Speech doesn’t recognise so well the natural-sounding speech with strong accents) were the main challenges.

See Case study: Conversational Interface: Dealing with technology constraints, accessibility and user context

See Case study: Hybrid Chat Assistant: Increasing the number of users who complete the Setup


UX Lead
Gigigo · 2015 - 2016

I was in a team of 6 UX & UI Designers, I was in charge of the UX team and managed 3 designers. We worked on a marketing web application called Orchextra which allows users to create marketing campaigns making use of triggers (geofences, beacons, barcodes or QRs) Also, I worked across cross-platform projects (Android & iOS mobile apps, and responsive web design) for clients such as Coca-Cola, McDonalds and Repsol.

I presented concepts and research findings to stakeholders and executive team, helped with ideation sessions and partnered with product managers, front and back-end engineers and the UI team from product conception to launch.

As part of my role, I gave workshops to the design team about new design tools and user research methods, introduced user-centered design to engineering and integrated it into business workflows, also defined standards of design documentation as to expand the professional and technical knowledge across the company.


Senior UX / UI Designer
bq · 2013 - 2015

I was in a team of 3 UX & UI designers, leading a Junior UI Designer. I worked on a cross-platform music service project (Android and iOS mobile apps and responsive web). We defined the UI components and created the style guides and user-interface specifications based on Google Material Design and Human Interface Guidelines by Apple.

I worked cross-team, partnering directly with engineers for implementation and with the QA team to ensure designs were executed as designed, taking feedback from product management and engineering. I participated in software design sprints and iterated on design solutions based on the user feedback received on a weekly focus group.

Leading discussions with the product and development team and presented the rationale behind designs to executive team, product managers and engineers.


UI Designer
Disashop · 2011 - 2013

I was in a team of 4 designers. I worked very closely with the Marketing Director to redesign a web application of the company which allows users to top-up their mobile phones in multimedia kiosks. Also, I built interactive ads for companies such as Vodafone or Orange using ActionScript. In addition, I designed the website and e-commerce of the company as well as newsletters (with HTML & CSS) and created style guides to handoff to the development team.


Web Designer
Freelance · 2010 - 2013

I helped startups across various industries -including education, retail, tech - develop new digital products or improve existing ones delivering user flows, wireframes and interactive prototypes for mobile apps and responsive web design. I worked specially designing for Magento e-commerces and building multimedia experiences for websites (with HTML & CSS, Action Script and JavaScript)


Web Designer
Cambur · 2010 - 2011

As part of the design team, I designed interfaces for e-commerce and websites across various industries, including gaming, leisure and retail.


Filmanova · 2009

I worked as a scriptwriter and conducted interviews of a documentary program.


Graphic Designer
Galician Audiovisual Communication · 2007 - 2009

As the sole designer, I was responsible for all graphic & online design work. That included branding, print design and online marketing.



Postgraduate in UX Design
Open University of Catalonia · 2015 - 2016

Interaction Design Specialisation
Coursera - University of San Diego · 2015 - 2016

Postgraduate in Programming Digital Arts
Pompeu Fabra University · 2010 - 2011

Bachelor’s degree in Audiovisual Communication
University of A Coruña · 2003 - 2008



Interaction Design
User Research



  • UX Strategy

  • UX & UI Product Design

  • User Research

  • Cross-platform design

  • Early product definition

  • Experience with designing internal tools

  • Data-driven analytics capabilities

  • Collaboration with front, back-end engineers, data scientists and QA, product team, researchers, other designers and stakeholders from product conception to launch

  • Able to tackle complex technical interaction problems



  • Sketch, Framer X, inVision, Zeplin

  • Google Docs, Sheets & Forms, Coggle, XMind, OmniGraffle

  • Optimal Workshop, Lookback

  • Google Analytics, Firebase


Adobe Photoshop, Illustrator & Premiere, Maya, Marvel, Principle, UsabilityHub, Keynote, UserTesting, Mixpanel


Do you want to know more? Drop me a line!