Marcos Andrés Antil came to America as a child from his native Guatemala. After learning about opportunities in the technology industry, he earned a Bachelor’s degree in Computer Science from California State University—Bakersfield and began as a Senior Solution Engineer for Day Software. It was there that the idea to create XumaK was born. He founded the company in 2004, growing it from just a few employees to the over 140 that make up the team today. He is currently the CEO and divides his time between Guatemala City, Guatemala and Miami, Florida. In 2019, Marcos published his autobiography, Migrante.

Leonardo Antiles came to XumaK with 15 years of experience working for a major transportation company focusing on human capital and client services. He is an expert in conflict resolution, acting as a liaison for many years between his prior company and Union members. He uses this skill to provide compassionate, strategic guidance in his role as General Manager at XumaK. In his spare time, he loves to spend time with his family and play soccer. He resides in Guatemala.

Josh Oransky has nearly 30 years of experience in software development, with 18 of them focused on scoping, leading, and developing scalable, high-availability, enterprise-class web applications. He has been instrumental in the development efforts of projects that run the gambit in size and scope, and he is adept at interfacing at any level of an organization, be it guiding developers at the level of code, assisting in the design and assessment of infrastructure for IT teams, or socializing the high-level approach for executives. Along with an extensive background in software development and methodology, Josh also possesses deep knowledge of network architecture & protocols, hardware development, data-modeling, and all aspects of system administration, optimization, security. A self-professed "foodie" and beer connoisseur, he currently resides in Los Angeles, CA.

Luis H. Fernandez, Chief Technology Officer, has been an expert in digital marketing for nearly 20 years. At XumaK, his focus is helping the world’s largest brands generate revenue growth by defining and implementing technical digital marketing strategies. Luis resides in Guatemala, but spends most of his time working in the U.S. and Latin America. He is passionate about the business-side of technology and e-commerce.

Warren Brenner came to XumaK in 2013 with a vast background in Engagement Management, Consulting and Software Architecture—he even spent several years as a Developer. Beginning as our VP of Global Services, he quickly advanced to the role of President, where he’s now responsible for leading our Sales, Marketing and Operations, as well as Strategic Partnerships with our clients and partners. In his spare time, he loves spending time with his wife and two children. They reside in Kansas City, Missouri.

Alexander Estupiñan joined XumaK in 2011 after working in several global companies in Europe and the United States. Alex’s broad background spans both technical and business, starting as developer and wearing many hats along the way, growing from Project Manager to Engagement Manager and currently serving as Director of Global services. This experience provides Alex with broad perspective to continuously refine XumaK’s vision and lead his team to deliver Customer Excellence. Alex resides in Guatemala, where he also serves as an Adjunct Professor at several of the most prestigious universities of the country.