Marco De Sa Email and Phone Number

Member of Sonae's Digital Advisory Board. Sonae is a €7 billion multinational company managing a diversified portfolio of businesses in retail, financial services, technology, real estate and telecommunications.

Serving 300 million monthly users in more than 30 countries across five continents, OLX Group is a global classifieds business operating 20+ consumer brands built by a global workforce of 10,000.As Chief Data Officer, I led and defined the data vision and strategy for the overall Group, across its various companies and brands:Data Engineering and Infrastructure - our data collection, access, governance, tools and practices (incl. ML and Experimentation platforms)Data Science applied to multiple products and functions within the organization, from personalization, recommendations, trust and safety, customer support, marketing, etc.Analytics and insights derived from data, incl. metric and KPI definition and automationExperimentation and the innovation teamDirectly leading the central & global Data Engineering, Data Science, and New Experiences teams, building the community for the 400+ data and product related roles in the Group.

In parallel to my Chief Data Officer role, I also led the Product Design and Research organizations (~70 people) for OLX Europe:Product Design for all products within OLX Europe (Classifieds, Jobs & Services, Motors, Real Estate), across all platforms (web, iOS, Android)User Research - Qualitative and quantitative research that drives business, product, and market strategiesCustomer Centricity and Design Ops - the customer centricity team, establishing processes and tools for a deeper focus on customers, and Ops for the organization

Lead Data Science, User Research and Growth Strategy for the Markets, Marketing and Product Growth organizations, including company wide Consumer Insights and Strategic Insights. Head of 60+ (User & Market Researchers, Data Scientists/Engineers, Strategists, Product Managers, Product & Marketing Analytics) in having material impact on Spotify’s overall strategy, portfolio of key growth investments (e.g., market launches, podcast strategy, new product lines, new features), key business metrics, data, and experimentation strategies.

Led Insights for the entire Personalization, Markets and Growth verticals. Led a team of 35+ Insights professionals in delivering work with material impact on growing Spotify’s user base, including informing the redesign and relaunch of the free tier.

Research Manager for 3 key research teams - Timelines (content consumption) and Tweet teams (content creation) and Growth, leading teams of Mixed methods, qualitative and quantitative User Researchers working on Twitter’s Timeline, Twitter Moments, Logged Out Twitter and Sign-Up/On-boarding experiences, Tweets and content creation, and Cards.

User Researcher leading research projects for different verticals across the US and international markets (e.g., Indonesia, Brazil, India). Research lead for Timelines, working with a team of URs to deliver strategic insight to the company's core product.

• Lead UX Researcher for Facebook Home• Lead/Co-lead Researcher for Facebook Paper• Researcher for Facebook for Android• Researcher for Facebook for iOS• Researcher for Facebook for feature phonesQualitative and quantitative research at scale for multiple mobile and web projects.

• Member of the Internet Experiences Research Group and the Micro Economics and Social Systems Group, based in Santa Clara, California, USA.• Leading initiatives and experiments on the design and development of Mobile Experiences, including Mobile Augmented Reality, Mobile Collaboration, Mobile Video Production, Mobile Advertising and Mobile Social Networks• Conducting innovative research and bridging the development of prototypes and experiments into commercial products.• Understanding online social practices for community and reviewing websites and mobile advertising.• Writing patents on advanced Mobile Experiences and Interaction (e.g., Mobile Augmented Reality, Mobile Media Browsing, Mobile Geo-Location Browsing and Mobile Collaboration, Gesture Based Interaction).

• Conducting Usability Analysis, as consultant, for public and private web-sites. o Redesign of CaixaMagica UI for Magalhães (OLPC Portuguese Initiative +200k laptops) o Accessibility assessment and restructuring of ANACOM’s website – ANACOM is the public entity that regulates and supervises the electronic and postal communications sector in Portugal• Accessibility Studies, as consultant, for public and private web sites.• User studies, guerrilla usability sessions, think-aloud tests and expert analysis.• Applying interviewing techniques, observation trials, cognitive and barrier walk-through techniques.BoomUX is still operating in Portugal.

Teaching Assitant for the Programming Labs Course

Teaching Assistant for the General Informatics Course