Job Description

Senior Platform Engineer - Ref: 1734

Initial contract until 27/12/26

£91.91ph, UMB, inside IR35

Onsite in Yeovil

Please note, DV clearance will be required and the programme wil have "UK Eyes Only" resctrictions

Location

This role is based at one of our UK sites Yeovil.

Minimum 3/4 days on site but full working week on site. (Extended hours can be done to shorten actual days working on site)

Your Impact

Are you ready to take the next step in your engineering career and lead the delivery of critical platforms that protect national security? At Leonardo, our Senior Platform Engineers combine technical expertise with leadership, driving the design, integration, and support of complex systems that underpin our customers' missions.

Your work at Leonardo UK will see you take the lead in solving customer problems in an agile, innovative and team-centric manner. The role may involve a blended hybrid working model, with a mixture of working from home and working on site at one of our Leonardo offices to ensure close collaboration with the wider team and with our customers.

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.

What you'll bring

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

Virtualisation platforms (VMware, Hyper-V)

VMware Cloud Foundation (VCF) stack (vSphere, vSAN, NSX-T, Aria Suite)

Design, build and operation of software-defined datacentre platforms

Network virtualisation and micro-segmentation concepts (NSX, platform-integrated)

Networking concepts (TCP/IP, DNS, DHCP, firewalls)

Automation and scripting (PowerShell, Bash, Python, Ansible, Terraform)

Knowledge of cyber security controls and accreditation requirements

Experience across the systems engineering lifecycle

Integration of compute, storage, and network layers into a unified platform

Delivery within secure / enterprise / defence environments

Desirable:

VCP Certification

Expertise with cloud platforms (AWS) and Infrastructure as Code

Experience integrating enterprise services (Active Directory, PKI, monitoring, SIEM)

Hands-on use of DevSecOps tools and CI/CD pipelines

VxRail and hyper-converged infrastructure

Automation of VCF lifecycle (patching, upgrades, deployment)

Integration with enterprise identity and security services (AD, PKI, PAM)

Containerisation platforms (Kubernetes, Docker)