Gysbertus Keyser: Email & Phone Number

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Unix Systems Administrator at Sabinet|Boksburg, Gauteng, South Africa

Position:

Unix Systems Administrator at Sabinet

Location:

Boksburg, Gauteng, South Africa

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Last updated: 2026-07-30

Updated: 2026-07-30

Found email addresses for Gysbertus Keyser:

Business emails:

**@gmail.com

Personal emails:

b************s@gmail.com

Found phone for Gysbertus Keyser:

+27-***-***-0728

A different Gysbertus Keyser?

Work Experience 25 years

Unix Systems Administrator at Sabinet

Jul 2023 - Current

Team Leader: Information Systems Technical & Operational at 3Sixty Health

Jan 2016 - Jun 2023

Network Engineer at 3Sixty Health

Jan 2011 - Dec 2015

Systems Administrator at 3Sixty Health

Jan 2006 - Dec 2011

Network Administrator at Bond University

Jun 2004 - Jun 2005

Systems Administrator at Phiblue Technologies

May 2001 - May 2004

Training Systems Engineer at Neutrix

Feb 2001 - Apr 2001

Gysbertus Keyser started working in 2001, then the employee has changed 4 companies and 5 jobs. On average, Gysbertus Keyser works for one company for 3 years 8 months.

Their professional focus is Analytical Skills, Architecture, and Backup & Recovery Systems across 3 core areas.

Education

AWS Certified Cloud Practitioner at AWS

VMWare Certified Professional vSphere 4 at VMware IT Academy

Certified Entry Networking Technician Certificate at Cisco College

Certified Network Associate Certificate at Cisco College

Certificate of Excellence: Certified Systems Engineer (MSCE NT4) at Microsoft

Certificate of Excellence: Microsoft Certified Professional Windows 2000 Pro at Microsoft

RedHat Certified Systems Engineer (RH 9) at RedHat

Certificate of Excellence: Certified Professional Internet NT4 at Microsoft

Certificate of Excellence: Certified Professional NT4 at Microsoft

Certificate of Proficiency in PC Engineering & Networking at Allenby East Rand Campus

A+ Certification at CompTIA Tech Career Academy

Allenby East Rand Campus

National Senior Certificate at Hoërskool Oosterlig

Frequently Asked Questions

What is Gysbertus Keyser's email address?

SignalHire found verified email addresses for Gysbertus Keyser, both business and personal. Their business email is **@gmail.com, and personal emails include b************s@gmail.com.

What is Gysbertus Keyser's phone number?

SignalHire found a verified phone number for Gysbertus Keyser: +27-***-***-0728.

How do I contact Gysbertus Keyser at Sabinet?

You can reach Gysbertus Keyser 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 Gysbertus Keyser's professional background?

Gysbertus Keyser has 25 years of professional experience. They have held roles including Team Leader: Information Systems Technical & Operational, Network Engineer, and Systems Administrator at companies such as 3Sixty Health, 3Sixty Health, and 3Sixty Health. Their education includes AWS Certified Cloud Practitioner from AWS, and VMWare Certified Professional vSphere 4 from VMware IT Academy.

Is Gysbertus Keyser's contact information up to date?

Yes. Gysbertus Keyser's SignalHire profile was last updated on 30 July 2026, reflecting their current position as Unix Systems Administrator at Sabinet.

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