Senior IT/OT Infrastructure & Systems Engineer

Westbourne IT Global Services; Killorglin; On-site; EUR 70,000 - 100,000; Full time

Job summary

Westbourne IT Global Services seeks an experienced IT/OT Infrastructure & Systems Engineer to support IT and OT environments within a pharmaceutical manufacturing facility. You will troubleshoot complex issues, maintain business-critical systems and collaborate with engineering, manufacturing, laboratory, vendors and corporate IT teams.

The role covers IT/OT infrastructure, networking, cybersecurity, and systems administration across Windows Server, AD, PLC/SCADA/DCS and related manufacturing

Qualifications

• Minimum 5 years in IT infrastructure, IT/OT engineering or similar role.
• Strong knowledge of Windows Server, Active Directory and VMware/Hyper-V.
• Experience with TCP/IP, switches, routing, VLANs and firewalls.
• Good cybersecurity understanding including endpoint protection and vulnerability management.
• Experience supporting manufacturing, automation or laboratory environments.
• Strong troubleshooting, problem-solving and incident management skills.
• Ability to work independently and with cross-functional teams.

Responsibilities

• IT/OT Infrastructure: Install, configure, maintain and troubleshoot servers, workstations and virtualisation within manufacturing environments.
• Networking: Support OT networks, VLANs, routing, firewalls and secure remote connectivity.
• Cybersecurity: Manage endpoint protection, patching, system hardening and security monitoring.
• Systems Administration: Support Windows Server, Active Directory, DNS, DHCP and backups.
• Manufacturing & Laboratory Systems: Provide technical support for PLC, SCADA, DCS, MES and LIMS.
• Systems Integration: Troubleshoot connectivity and data transfer with vendors.
• Operational Support: Investigate incidents, perform root-cause analysis and lifecycle activities.
• Compliance: Ensure IT/OT systems comply with QMS and validation standards.
• Documentation: Maintain SOPs and system inventories.

Job description

Role Overview

We are looking for an experienced, hands-on IT/OT Infrastructure & Systems Engineerto support IT and Operational Technology environments within a pharmaceutical manufacturing facility.

The ideal candidate will have a strong technical background in IT infrastructure, networking, cybersecurity and computerised systems, with experience supporting manufacturing, automation and laboratory environments.

This role requires a proactive and technically skilled engineer who can troubleshoot complex issues, maintain business-critical systems and work closely with engineering, manufacturing, laboratory, vendors and corporate IT teams.

Key Responsibilities

• IT/OT Infrastructure:Install, configure, maintain and troubleshoot servers, workstations, virtualisation platforms, operating systems, storage and associated infrastructure within manufacturing environments.

• Networking:Support and troubleshoot OT networks, switches, VLANs, routing, firewalls, network segmentation and secure remote connectivity.

• Cybersecurity:Manage endpoint protection, vulnerability management, patching, system hardening, access controls and security monitoring across IT/OT environments.

• Systems Administration:Support Windows Server, Active Directory, Group Policy, DNS, DHCP, Microsoft Entra ID, backup and recovery solutions.

• Manufacturing & Laboratory Systems:Provide technical support for automation platforms including PLC, SCADA, DCS and HMI, along with manufacturing applications, laboratory instruments, LIMS and chromatography systems.

• Systems Integration:Troubleshoot equipment connectivity, application interfaces and data transfer issues while working with internal teams and external vendors.

• Operational Support:Investigate technical incidents, perform root-cause analysis, support system upgrades and manage lifecycle activities and service recovery.

• Compliance:Ensure IT/OT systems comply with Quality Management System (QMS) requirements, validation standards and site procedures.

• Documentation:Maintain SOPs, technical procedures, infrastructure diagrams, system inventories and configuration records.

Required Skills & Experience

• Minimum 5 years of hands-on experiencein IT infrastructure, IT/OT engineering, industrial IT or a similar technical role.

• Strong knowledge of Windows Server, Active Directory, VMware/Hyper-Vand enterprise IT infrastructure.

• Experience with TCP/IP, switching, routing, VLANs, firewallsand network troubleshooting.

• Good understanding of cybersecurity, endpoint protection, vulnerability management and IT/OT network security.

• Experience supporting manufacturing systems, automation platforms, laboratory environments or equipment-connected infrastructure.

• Strong technical troubleshooting, problem-solving and incident management skills.

• Ability to work independently and collaborate effectively with cross-functional teams.

Desirable Experience

• Previous experience in pharmaceutical, biotechnology or regulated manufacturing environments.

• Familiarity with PLC, SCADA, DCS, MESand industrial communication protocols such as OPC UA, Modbus and PROFINET.

• Experience supporting laboratory systems such as Waters Empower, LIMSor analytical instruments.

• Understanding of IEC 62443, NIST, GAMP 5, CSV/CSA, 21 CFR Part 11 and EU GMP Annex 11.

• Relevant technical certifications such as Microsoft, Cisco, CompTIA Security+ or GICSP.

Qualifications

• Degree in Computer Science, Information Technology, Engineering, Automationor a related discipline.

• Equivalent relevant industry experience will also be considered.