Senior IT/OT Infrastructure & Systems Engineer

Westbourne; Killorglin; On-site; EUR 65,000 - 90,000; Full time

Job summary

Westbourne is seeking an experienced IT/OT Infrastructure & Systems Engineer to support IT and OT environments within a pharmaceutical manufacturing facility. You will troubleshoot complex issues and maintain business-critical systems while collaborating with engineering, manufacturing and laboratory teams.

The role requires a strong background in IT infrastructure, networking and cybersecurity, plus hands-on experience with manufacturing software, PLC/SCADA/DCS, LIMS and validation standards.

Qualifications

• Degree in Computer Science, IT, Engineering or related discipline.
• Equivalent relevant industry experience considered.
• Experience in IT/OT environments desirable.
• Knowledge of GMP/quality systems preferred.

Responsibilities

• Install, configure, and maintain servers, workstations and virtualization in manufacturing settings.
• Support OT networks, switches, VLANs, routing and secure remote access.
• Manage endpoint protection, patching and system hardening across IT/OT.
• Support Windows Server, Active Directory, DNS/DHCP and backups.
• Provide technical support for PLC, SCADA, DCS and laboratory systems.
• Troubleshoot equipment connectivity and data interfaces with vendors.
• Investigate incidents, perform root-cause analysis and system upgrades.
• Ensure IT/OT systems comply with QMS and validation standards.

Skills

IT Infrastructure

IT/OT Engineering

Networking

Cybersecurity

Windows Server

Troubleshooting

Education

Bachelor’s degree in IT/Engineering

Tools

VMware/Hyper-V

DNS/DHCP

LIMS

SCADA/PLC

Job description

Role Overview

We are looking for an experienced, hands-on IT/OT Infrastructure & Systems Engineer to 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.