Operational Technology Infrastructure Engineer/Consultant

At Sword, we help power, secure and transform the organisations that keep the UK running. Supporting customers across Critical National Infrastructure, energy, public sector and enterprise markets, we combine deep industry expertise with leading technology services spanning managed services, cyber security, cloud, data, AI and digital transformation.

Join Sword and you'll be part of a team solving complex challenges, delivering real-world impact and working alongside talented colleagues who care deeply about quality, collaboration and customer success.

About the Role:

• Design, build and configure VMware environments.
• Build and configure physical and virtual server environments.
• Support Windows and Linux-based infrastructure platforms.
• Support the hosting and deployment of OT and industrial applications.
• Support application installation, configuration, integration and infrastructure readiness.
• Undertake system, application and infrastructure testing and validation prior to deployment.
• Support FAT, SAT, commissioning and production go-live activities.
• Support infrastructure migrations, upgrades and refresh programmes.
• Configure Active Directory, Group Policy, DNS and supporting infrastructure services.
• Implement resilient, highly available infrastructure for critical OT systems.
• Support storage, backup, recovery and disaster recovery solutions.
• Undertake infrastructure health checks, troubleshooting and performance analysis.
• Support server hardening, patching and vulnerability remediation.
• Produce HLDs, LLDs, build guides, test plans, validation evidence and as-built documentation.
• Work alongside OT, cyber security, network, application and engineering teams.
• Provide technical consultancy and guidance to customers.

Requirements

• Strong hands-on experience with VMware.
• Strong experience with Windows Server build, configuration and administration.
• Experience with Red Hat Enterprise Linux (RHEL) or equivalent Linux platforms.
• Experience with physical and virtual server deployment.
• Experience supporting application hosting and application infrastructure.
• Experience with system testing, validation and acceptance activities.
• Active Directory, Group Policy, DNS and DHCP.
• High availability, clustering and infrastructure resilience.
• Enterprise server hardware including Dell, HPE or equivalent.
• SAN, NAS and enterprise storage technologies.
• Backup and disaster recovery technologies
• Good understanding of networking, VLANs, firewalls and segmentation.
• Server hardening, patching and lifecycle management.
• Experience producing technical infrastructure and test documentation.
• Experience within OT, industrial, energy, utilities or CNI environments would be highly desirable.
• Knowledge of IEC 62443, NCSC CAF or OT cyber security principles would be advantageous.