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Company / Management Team

Helder Antunes
Chief Executive Officer

Helder Antunes is a technologist and executive with over 30 years of experience in Silicon Valley, currently serving as the Chief Executive Officer of GDS360. A Cisco Systems executive for over 20 years, Antunes was crucial in the development and leadership of many of Cisco’s flagship initiatives, earning several noted...


John Galinski
Co-Founder and CIO

John Galinski is a Co-Founder and CIO of GDS360. John recently left a 13-year stint as the CIO of financial advisory firm Geller & Company to found GDS360. He has 30 years of experience in the design, development and implementation of telecommunications, networking, router and server networks...


Nigel Walker
Co-Founder and CTO

Nigel Walker is a Co-Founder and CTO of GDS360. Nigel has spent his entire career as a serial entrepreneur in the UK, building software development companies and working with key technologies from multimedia and commodity computer peripherals to leading edge Financial Information Systems and Identity Management Solutions. Currently he is...


Robert A. Schaeffer
Chief Revenue Officer

Robert A. Schaeffer is Chief Revenue Officer of Global Data Sentinel. Robert has over 25 years of experience in various business development roles within the financial services investment industry, with roles for KPMG Peat Marwick, Rothstein Kass, EisnerAmper and Equity Trust Fund Services. He also co-founded and served as a...


Shafi Khan
Vice President of Business Development

Shafi Khan started his career with a family-owned Telecom company (First Ever Wholesale VoIP Wholesaler) Global Voice Telecom and subsequently founded other 4 successful companies, helping establish and maintain C-Level level relationships in the Entertainment, Telecom, IT and Energy sectors. This has been the key to a...