Senior Platform Engineer

Responsibilities

• Leonardo UK is seeking a Senior Platform Engineer to join the Cyber & Security Solutions Division team. This role is focused on delivering, maintaining, and improving platform and systems engineering solutions that underpin critical defence, government and public sector services.
• What you will do as a Senior Platform Engineer
• Lead the design, build, and support of secure platforms on-premise and hybrid environments.
• Take ownership of engineering delivery for one or more work packages, including planning, estimation, execution, and reporting.
• Develop and review system architectures, low-level designs, and technical documentation.
• Integrate and test platform components, ensuring compliance with security and performance requirements.
• Provide mentoring, guidance, and technical leadership to Platform Engineers and Technicians.
• Collaborate with stakeholders, project teams, and customers to ensure solutions meet requirements.
• Drive continuous improvement initiatives and contribute to internal engineering standards.

Requirements

• Strong technical ability with experience of delivering and supporting complex platforms.
• Ability to balance hands-on engineering with technical leadership and mentoring responsibilities.
• Confidence to take ownership of solutions and represent engineering in technical discussions.
• Core areas (must have):
• Windows and Linux operating systems administration and support
• Virtualised infrastructure (VMware / Hyper-V) operation and maintenance
• Operational support of platform services (e.g. PAM, PKI, cross-domain solutions) in live environments
• Platform administration including patching, upgrades, configuration, and account management
• Monitoring, alerting, and incident response for platform services
• Incident and problem management, including troubleshooting and root cause analysis
• Networking concepts (TCP/IP, DNS, DHCP, firewalls)
• Automation and scripting for operational tasks (PowerShell, Bash, Python, or similar)
• Knowledge of cyber security controls and accreditation requirements
• Experience supporting systems across the engineering lifecycle (transition into service, run, and improvement)
• Delivery within secure / enterprise / defence environments
• Desirable:
• Experience supporting platforms such as CyberArk (PAM), PKI services, or cross-domain / secure transfer solutions
• Use of monitoring and alerting tools (e.g. SIEM, infrastructure monitoring platforms)
• ITIL-aligned service management practices (incident, problem, change)
• Automation of operational activities (scripts, scheduled jobs, runbooks)
• Experience working in high-availability or 24/7 service environments
• Integration with enterprise services (Active Directory, identity, logging, backup)
• Container platforms (Kubernetes, Docker)
• This is not an exhaustive list, and we are keen to hear from you even if you might not have experience in all the above. The most important skill is a good attitude and willingness to learn.
• Security Clearance
• Location
• This role will be based at one of our UK sites - Yeovil.
• Why join us
• At Leonardo, our people are at the heart of everything we do. We offer a comprehensive, company-funded benefits package that supports your wellbeing, career development, and work-life balance.
• Time to Recharge: Generous leave with the opportunity to accrue up to 12 additional flexi-days each year.
• Secure your Future: Award-winning pension scheme with up to 15% employer contribution.
• Your Wellbeing Matters: Free access to ment

Benefits

Additional Information

Job Description: Salary Range: £44,171 - £61,950 Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity.

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