LE Senior Platform Engineer; RHEL) Leonardo · GB Lysander Rd · Platform & Infrastructure –ago

Do you want to develop your engineering career while helping operate, maintain and improve secure platforms that protect national security? At Leonardo, our Platform Engineers provide the hands‑on engineering and operational support that keeps critical customer services secure, available and fit for purpose.

Your work at Leonardo UK will see you solve customer and service problems in an agile, innovative and team-centric manner. This is an operational role supporting highly controlled environments, requiring regular on‑site working and close collaboration with senior engineers, service management, security and customer teams.

• Operate, maintain and support secure Windows, Red Hat Enterprise Linux and virtualised platforms within highly controlled environments.

• Deliver assigned operational engineering tasks, including deployments, configuration changes, monitoring, patching, upgrades, backup and service enhancements.

• Support incident, problem and change activity, investigating technical issues and contributing to recovery and root‑cause analysis.

• Maintain secure configurations, platform baselines, support documentation, runbooks and knowledge articles.

• Troubleshoot platform, network, integration and service issues, escalating complex problems where appropriate.

• Contribute to low‑level designs, implementation plans, testing, technical evidence and operational documentation.

• Work with Senior and Principal Engineers to support operational readiness, service acceptance and transition into business‑as‑usual support.

• Contribute to continuous improvement through automation, reusable engineering patterns and improvements to support processes.

• Share knowledge with colleagues and support the development of wider team capability.

• A solid grounding in IT infrastructure, with hands‑on experience in system administration, engineering or technical support.
• The ability to work independently on defined activities while collaborating effectively within a wider operational engineering team.
• A disciplined service mindset, with attention to detail and a willingness to take ownership of assigned issues and tasks.
• A proactive approach to learning new technologies and developing broader platform engineering capability.
• The ability to communicate clearly with technical, service management, security and customer stakeholders.

• Hands‑on experience with Windows Server and/or Red Hat Enterprise Linux administration and support.
• Experience with enterprise virtualisation technologies, such as VMware or Hyper‑V.
• Networking fundamentals including TCP/IP, DNS, DHCP, routing and firewalls.
• Experience supporting infrastructure or platforms within a controlled, regulated or secure environment.
• Infrastructure lifecycle activities including deployment, configuration, monitoring, patching, upgrading, backup and sustainment.
• Understanding of incident, problem, change and configuration management within an ITIL‑aligned service environment.
• Awareness of cyber security controls, system hardening and vulnerability remediation.
• Troubleshooting and fault‑finding across integrated infrastructure and platform services.
• Creation and maintenance of technical documentation, such as support guides, runbooks and configuration records.

Experience in one or more of the following areas would be highly desirable:

• VMware Cloud Foundation, including vSphere, vSAN, NSX or VMware Aria.
• Automation or scripting using Power Shell, Bash, Python, Ansible or Terraform.
• Privileged Access Management, including Cyber Ark or comparable technologies.
• Public Key Infrastructure, certificate lifecycle management or trust services.
• Cross‑domain solutions, secure data transfer…