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Digicel

Senior IT Infrastructure Administrator

JM, WI, United States

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Job details

Apply by: Nov 29, 2026
Experience: 5+ years of progressive experience in enterprise infrastructure engineering or a similar role
Posting language: English
Posted: Oct 28, 2026

Original job description

About Digicel

Digicel is a leading digital connectivity and communications provider, delivering modern wireless and fibre networks across 25 markets in the Caribbean, Central and South America. Serving nine million customers through mobile, home, and business solutions, we play a critical role in enabling economic participation and digital inclusion in the region. Our commitment to strong governance, inclusive access, and long-term value creation is embedded in how we operate every day. Backed by our DIGI values - Diversity, Integrity, Growth, and Innovation - our 5,000 employees are focused on driving impact for the customers, communities, and countries we serve.

Visit www.digicelgroup.com for more.

Senior IT Infrastructure Administrator

Primary Objectives of the Job:

The Senior IT Infrastructure Engineer (SITE) is responsible for the operation, security and lifecycle management of Digicel’s on premises and hybrid (Microsoft Azure / Microsoft 365) server infrastructure in support of the global business. This includes all Group Head Office IT requirements as well as technical support to the technology teams across Digicel’s operating markets. The SITE works as a member of a team of engineers delivering first-class technology services on the Microsoft platform, including current Windows Server releases, Active Directory and Microsoft Entra ID hybrid identity, and Microsoft 365. The role includes on-site physical support for technology solutions deployed across Digicel’s Tier III data centres, including SAN storage, backup and other high-availability infrastructure. A significant portion of the infrastructure estate runs on Linux and Unix. Strong experience supporting enterprise Linux distributions (e.g., Red Hat Enterprise Linux and RHEL-compatible distributions) and Unix platforms is key to success in this role.

Duties and Responsibilities:

Microsoft Infrastructure Services – evaluate and manage all on-premises Microsoft infrastructure services, including Active Directory Domain Services (AD DS), DNS, DHCP, Network Policy Server (NPS), Active Directory Certificate Services (AD CS), SMTP mail relay and Remote Desktop Services (RDS)
Identity and Access Management – manage hybrid identity across Active Directory and Microsoft Entra ID, including directory synchronisation, conditional access and multi-factor authentication in coordination with Group Security; execute joiner/mover/leaver access changes and privileged-access controls in line with Group IT access-control procedures
Wi-Fi Services – manage all corporate Wi-Fi services (Cisco Meraki) and related network equipment to ensure consistent, reliable connectivity for users
Virtualization – manage virtual server environments, including Microsoft Hyper-V and VMware vSphere, covering host lifecycle, capacity and licensing
Microsoft 365 Administration – administer Microsoft 365 through the Microsoft 365 admin center and related admin portals; own the processes for subscription and license allocation across the markets and monitor license utilization; evaluate and coordinate upgrades, environment changes and maintenance work with Global IT Administrators
Endpoint and Server Management – manage patch, software and configuration deployment using Microsoft Configuration Manager and/or Microsoft Intune
Backup and Recovery – ensure server and data backups are configured, monitored and restore-tested; support disaster recovery testing for critical systems
Monitoring and Reporting – evaluate, implement and manage infrastructure monitoring and reporting solutions to ensure all critical systems are under appropriate management, including remote management and SNMP integration with the Global Network Operations Centre (GNOC)
Certificate Management (SSL/TLS) – manage the full lifecycle of certificates issued by the internal certificate authority (AD CS) and external public certificate providers; maintain a certificate inventory and assist market technology teams with timely renewals and installations to prevent expiry-related outages
Incident and Problem Management – provide troubleshooting expertise to resolve issues without vendor escalation where possible; raise and drive Microsoft and other vendor support cases to resolution; coordinate internal stakeholders and suppliers to restore service efficiently; complete root cause analysis (RCA) for major incidents
Systems Administration – manage Active Directory objects, file share and print services in collaboration with the IT Service Desk team
Change Management – plan and execute production changes through the approved change management process, including maintenance windows, implementation and rollback plans. • Health, Performance and Stability – conduct routine health checks and proactive maintenance to ensure the availability and reliability of systems; maintain the uptime and performance of servers and network services through an approved patching and performance regime
Capacity and Lifecycle Management – participate in capacity planning, migration and design activities for solutions dependent on IT infrastructure; identify end-of-life hardware and software and support its upgrade, migration or Revised: September 2026 Classification: Public decommission
Automation – develop and maintain scripts (PowerShell, Bash) to automate routine administration, reporting and compliance tasks
Security, Vulnerability and Compliance – ensure systems are hardened and vulnerabilities remediated as directed by the Group Security team; support the continuance of Digicel’s ISO/IEC 27001 certification and IT general controls (ITGC) audits, including the provision of audit evidence
IT Assets and Documentation – maintain an up-to-date inventory of servers, compute and on-premises storage infrastructure, together with current system documentation and runbooks; administer corporate network assets in coordination with the IT Service Desk team
AI Enablement and Automation – support the secure deployment and administration of AI-enabled platforms and services (e.g., Microsoft 365 Copilot), including readiness assessments, licensing, permissions and data-access controls, in coordination with Group Security; use AI-assisted tools to improve automation, monitoring, troubleshooting and documentation, in line with Group AI and data governance policies

Academic Qualifications and Experience Required:

Bachelor’s degree in Information Technology, Computer Science or a related field
5+ years of progressive experience in enterprise infrastructure engineering or a similar role
Microsoft role-based certification(s) such as Windows Server Hybrid Administrator Associate (AZ-800/AZ-801), Azure Administrator Associate (AZ-104) or Microsoft 365 Administrator (MS-102) would be an asset
Red Hat Certified System Administrator (RHCSA) or equivalent Linux certification would be an asset
ITIL 5 Foundation certification is desirable
Experience with Microsoft Configuration Manager and/or Microsoft Intune would be an asset
Knowledge of Cisco Meraki wireless solutions is preferred
Experience with email and file archiving and retention solutions (e.g., Microsoft Purview) is desirable
Working knowledge of Microsoft Azure infrastructure services to support hybrid operations and cloud migration initiatives
Familiarity with AI-enabled IT operations tools (e.g., Microsoft Copilot, AIOps/AI-assisted monitoring) and the security and data-governance considerations for enterprise AI adoption is an asset
An acceptable combination of academic qualifications and work experience may be considered in lieu of the minimum requirements

Functional Skills:

Strong written and verbal communication and presentation skills
Strong organizational, reporting and documentation skills
Continuous learner who adopts new technologies, including AI-assisted tools, to improve processes, productivity and service quality
Ability to prioritize tasks and work in an agile operating environment using Scrum/Kanban boards
Ability to liaise effectively with team members, business units, technology teams and vendors
Experience working within a formal change management regime for production environments
Highly self-motivated and willing to work extended and out-of-hours periods, including on-call support, as requiredStrong problem-solving and analytical skills
Ability to perform effectively under pressure in a high-availability operational environment

Interested applicants are encouraged to apply on or before Saturday, November 28, 2026

DISCLAIMER:

This job description indicates the general nature and level of work expected of the incumbent. It is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities required of the incumbent. Incumbent may, and probably will be asked to perform other duties as required. Each employee, regardless of classification, is required to maintain a safe, orderly and clean workplace, using safety precautions and observing safety rules at all times.

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