Samuel Mcdonald
@samuelmcdonald
Seasoned Linux/Unix systems professional driving infrastructure reliability and automation.
JamaicaWhat I'm looking for
I am a seasoned Linux/Unix systems and infrastructure professional with over a decade designing, deploying and managing mission‑critical platforms. I specialise in RHEL, AIX and Oracle Linux administration, VMware ESXi, AWS and Azure, storage and backup management, and driving automation with Ansible and Red Hat Satellite.
I have led high‑availability clustering, SAN and virtualization operations, delivered major projects such as database migrations and identity management integrations, and reduced manual patching and configuration effort by 40% through automation. I mentor junior administrators, collaborate with vendors and cross‑functional teams, and seek to manage enterprise Unix/Linux infrastructure initiatives to improve reliability and security.
Experience
Work history, roles, and key accomplishments
Linux Administrator
Sagicor Group
Oct 2020 - Present (5 years)
Provide technical leadership for the core‑banking platform, maintain and harden Unix/Linux systems, and lead automation and HA initiatives that reduced manual interventions by 40% while ensuring DR replication and service availability.
Senior Linux/Systems Administrator
eGov Jamaica Ltd.
May 2019 - Sep 2020 (1 year 4 months)
Installed and maintained servers, networks and storage for government clients, designed a multi‑node HA cluster and migrated databases to improve reliability and eliminate single points of failure.
Senior IT Support Analyst
Hinduja Global Solutions
Oct 2018 - Mar 2019 (5 months)
Provided first‑line technical support for hardware, software and network issues, developed training materials and assisted with Active Directory administration to improve operational uptime.
Junior System Administrator
Line2
Oct 2018 - Mar 2019 (5 months)
Supported change control and patching, administered networking and virtualization stacks across VMware, NAS, AWS and Azure, and maintained user accounts and access controls.
GTI Specialist & Team Manager
Sutherland Global Services
Oct 2013 - Dec 2017 (4 years 2 months)
Administered virtual desktops and telecom systems, deployed application patches and managed a 20‑agent team to meet SLAs and improve performance through coaching and process improvements.
4G Broadband Helpdesk Team Leader
Digicel Jamaica
Jul 2010 - May 2012 (1 year 10 months)
Monitored wireless broadband network, escalated critical alarms to NOC, produced technical reports and led a helpdesk team to ensure timely incident resolution and service continuity.
Education
Degrees, certifications, and relevant coursework
Vocational Training and Development Institute
Bachelor of Science, Information Communication and Technology
2014 - 2019
Grade: First Class Honours
BSc in Information Communication and Technology completed with First Class Honours between September 2014 and August 2019.
Tech stack
Software and tools used professionally
Availability
Location
JamaicaAuthorized to work in
Job categories
Skills
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