Guillermo: Email & Phone Number

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Chief Technology Officer at Celsius Amersfoort, Netherlands|San Francisco, California, United States

Position:

Chief Technology Officer at Celsius Amersfoort, Netherlands

Location:

San Francisco, California, United States

View Guillermo's Email

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Last updated: 2025-12-23

Updated: 2025-12-23

Found email addresses for Guillermo:

Business emails:

_********o@celsiushc.nl

Personal emails:

b***@gmail.com,

b***@arbinet.com,

b***@hotmail.com,

g***@kngrid.com

Found phones for Guillermo:

+1-323-***-**00,

+1-870-***-**64,

+1-623-***-**25,

+1-909-***-**43

A different Guillermo?

Work Experience 36 years

Chief Technology Officer at Celsius Amersfoort, Netherlands

Apr 2022 - Current

Chief Solutions Officer at Globant

Jan 2018 - Mar 2022

CTO at Globant

Jan 2011 - Jan 2018

Co-Founder at KnGrid

Jan 2010 - Jan 2014

CIO at Arbinet

Jan 2007 - Jan 2010

Chief Architect at Arbinet

Jan 2003 - Jan 2007

VP Development at TurnCoin | TheXchange

Jan 1999 - Jan 2003

Software Development Lead at Smartnet

Jan 1997 - Jan 1999

Software Developer & Co-Founder at Optima Software

Jan 1992 - Jan 1996

Researcher - CRAAG at IBM

Jan 1990 - Jan 1992

Guillermo started working in 1990, then the employee has changed 7 companies and 9 jobs. On average, Guillermo works for one company for 3 years 10 months.

Their professional focus is Agile Methodologies, Cellular Communications, and Cloud Computing across 3 core areas.

Education

Engineer at Universidad del Centro de Buenos Aires (UNICEN)

Frequently Asked Questions

What is Guillermo's email address?

SignalHire found verified email addresses for Guillermo, both business and personal. Their business email is _********o@celsiushc.nl, and personal emails include b***@gmail.com, b***@arbinet.com, and b***@hotmail.com.

What is Guillermo's phone number?

SignalHire found multiple verified phone numbers for Guillermo: +1-323-***-**00, +1-870-***-**64, and +1-623-***-**25.

How do I contact Guillermo at Celsius Amersfoort, Netherlands?

You can reach Guillermo through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Guillermo's professional background?

Guillermo has 36 years of professional experience. They have held roles including Chief Solutions Officer, CTO, and Co-Founder at companies such as Globant, Globant, and KnGrid. Their education includes Engineer from Universidad del Centro de Buenos Aires (UNICEN).

Is Guillermo's contact information up to date?

Yes. Guillermo's SignalHire profile was last updated on 23 December 2025, reflecting their current position as Chief Technology Officer at Celsius Amersfoort, Netherlands in Amersfoort, Utrecht, Netherlands.

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