Our Dream Team.

We are a global team of thinkers, doers, and practical practitioners across a broad spectrum of related disciplines with a special commitment to global impact.

Antonio Altamirano

CEO / Founder

Antonio has built and managed engineering and product teams at Fortune 500 companies and Silicon Valley startups. Before Tangelo, he worked at Accenture, SearchRev (acquired by AKQA), Sun Microsystems and held executive roles at several technology startups in the Silicon Valley.

Rebecca Altamirano

Innovation / Founder

Rebecca graduated from Wellesley College and Stanford University and was a recipient of the Thomas J. Watson Fellowship, a grant for independent study and research. She was a founding teacher at a charter school sponsored by Stanford University. Prior to Tangelo, Rebecca started two technology companies, one in the medical field and the other in the ad-tech field.

Pablo Gamba

CTO / Founder

Pablo brings extensive experience building technology for several industries. He specializes in software architecture, incipient technologies and scalability. He is a member of the student's dissertation committee at the Software Engineering School in FASTA University.

Leandro Henflen

VP Digital Product / Founder

Leandro is our resident design thinker and managing partner at Tangelo. He has over 11 years of experience working on web technologies and has managed several projects working for Human Rights Organizations, Government agencies and retail companies.

Juan Manuel Hidalgo

Technology Director

Juan is a geek by nature, Linux evangelizer by choice, and a passionate software developer. He has dedicated the last 15 years to experiment on PHP, Pyhton, Javascript, Android, AngularJs (Javascript), Perl, C and more. His outstanding commitment, interest and dedication to his work result in real tech works of art.

Celeste Berettera

Marketing, Manager

Celeste is our resident Digital Marketing Specialist with +9 years of experience developing, implementing, tracking and optimizing marketing campaigns across all digital channels. With strong analytical skills and creative thinking she is in charge of identifying target audiences and devising digital campaigns that engage, inform and motivate people around the world.

Tara Carter

Sr. Business Intelligence Manager

Tara has over 20 years of experience in marketing, business intelligence and analytics. She has worked extensively with many world-leading corporations. Tara's ability to understand business priorities, scope solutions, and combine data, technology, and business processes to create robust deliverables and actionable strategies is second-to-none. Tara is a graduate of Cornell University with a focus in science and mathematics.

Sinéad Cheung

Business Intelligence Lead

Sinéad has 4+ years of experience in strategy, design, implementation, and research. Before joining Tangelo, Sinéad was at PricewaterhouseCoopers and MIT where she prototyped applications and researched actionable data regarding emerging technologies. She also oversaw the strategy and management of projects for Fortune 500 companies and government entities. Sinéad graduated from Wellesley College. 

Mariana Soto

Billing and Management

Mariana has over a decade of experience in digital marketing. She was part of the founding team at, an interest discovery engine currently powering content discovery for millions of users every month. Mariana is an animal lover and in her spare time she founded an non-profit organization to fund programs that help street dogs.

José Rago


Jose is a UI/UX designer with a huge love for web development, techology and design beauty. As a dedicated and obsessive designer, he is always focused on solving problems and improving design processes for our biggest clients and internal teams.

German Avellaneda


German is a UI designer and illustrator with nearly 20 years of experience working with startups and large corporations. He studied Visual Arts and Industrial Design which gave him a strong academic foundation that is now combined with decades of industry experience. An avid artist and music lover German sings, plays the guitar and composes music with his own band, AETEREA.

Osvaldo Torres Lemus

Business Intelligence Associate

Osvaldo has worked and lead innovation programs for corporations in a wide variety of projects. He has experience analyzing new go-to-market strategies for new markets and has lead the optimization of internal processes in order to support organizational change. Before joining Tangelo, Osvaldo was part of a think tank tasked with planning the evolution of one of the largest Mexican corporations.

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