Systems Administrator

Cpl; Dublin; On-site; EUR 90,000 - 120,000; Full time

Job summary

Cpl in Ireland seeks a highly experienced Systems Engineer to lead the administration and design of enterprise server and infrastructure, spanning on-premises data centres and cloud services.

You will act as a consultant for direction, drive security-first architecture, and collaborate with SOC for incident response and remediation.

The role demands 7+ years of experience in regulated environments and a track record of upgrading complex infrastructure.

Qualifications

• 7+ years of enterprise server and infrastructure administration and design.
• Experience leading infrastructure upgrade programmes.
• Strong understanding of enterprise cybersecurity risks and mitigations.
• Experience in regulated or high-security environments.
• Experience designing and managing hybrid on-prem and cloud environments.

Responsibilities

• Firmware patching work planning and implementation (iLo, iDrac, switches, firewalls, routers, SAN, and other hardware).
• Point of contact for IT team for advanced escalations.
• Overhauling legacy server infrastructure, environment and configurations with cyber security as the priority.
• Performance tuning at hypervisor, host, and guest OS level.
• Design and administer Azure IaaS, PaaS and hybrid workloads, including Azure Virtual Machines, Azure Networking, Azure Backup Site Recovery and monitoring.
• Work closely with SOC and security teams during incident response, forensic investigations,Post-incident remediation.

Skills

Server administration

Infrastructure design

Cybersecurity awareness

Hybrid/cloud experience

Tools

Azure

Microsoft 365

Active Directory

iLo/iDrac

Firewalls

Job description

Systems Engineer ;7+ years enterprise server and infrastructure administration/design including operating and designing large, complex on‑prem environments.
Demonstrated experience leading infrastructure upgrade and overhaul programmes.
Strong understanding of enterprise cyber‑security risks and mitigations.
Experience working in regulated or high‑security environments.
We are seeking a highly experienced and exceptionally qualified Server Administrator to manage, modernise, and secure a complex hybrid infrastructure environment spanning on‑premises datacentres and Microsoft 365 / Azure.
Act as a consultant for direction and guidance as well as work within projects as a technician

Responsibilities:

Firmware patching work planning and implementation (iLo, iDrac, switches, firewalls, routers, SAN, other hardware)
Point of contact for IT team for advanced escalations
Overhauling legacy server infrastructure, environment and configurations with cyber security as the priority
Performance tuning at hypervisor, host, and guest OS level
Planning for migration of existing servers to the cloud
On‑Premises Infrastructure management
Forest/domain design and trust models
Group Policy hardening
Active Directory overhaul
AD security posture (LAPS, RBAC)
Troubleshoot complex cluster and VM performance issues.
Review of server resources and recommendations on improvements
Driving security‑first architecture and operations
Ensuring resilience, performance, and cyber‑security compliance
Design and administer Azure IaaS, PaaS and hybrid workloads, including:

• Azure Virtual Machines
• Azure Networking
• Azure Backup, Site Recovery, and monitoring

Work closely with SOC and security teams during:

• Incident response
• Forensic investigations
• Post‑incident remediation