Location: Yeovil (fully onsite - can look at condensed working weeks)
Duration: Contract until 27th December '26 initially
Rate: £99ph UMB (Inside IR35)
Active DV required upon submission.
Role details:
Our leading defence client is looking for an experienced Infrastructure / Platform SME (with a focus on PKI) to join their Cyber & Security Solutions division.
Key Responsibilities:
- Act as the technical authority in platform engineering domains, offering domain expertise to various projects and programmes
- Lead the design and implementation of secure platforms across on-premise, hybrid, and cloud environments
- Capture, analyse, and interpret complex customer requirements to drive system design and architecture
- Develop high- and low-level designs, ensuring alignment with secure-by-design principles
- Own technical delivery within work packages, including planning, estimation, and progress reporting
- Mentor, coach, and develop junior and senior engineers, enhancing technical capability within the team
- Provide input to technology strategies, feasibility studies, and innovation projects
- Engage with internal and external stakeholders, presenting technical solutions and justifying design decisions
What we are looking for:
- Extensive technical expertise across multiple platform domains, with a track record of delivering secure solutions.
- The ability to balance hands-on engineering with technical leadership and mentorship.
- A problem-solving mindset, able to innovate and recommend the best approach for complex challenges.
Core areas (must have):
- Windows and Linux operating systems
- Virtualisation platforms (VMware, Hyper-V)
- Privileged Access Management concepts and implementation (CyberArk or similar)
- Secure credential storage, rotation, and access control models
- Integration of PAM into enterprise platforms and services
- 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
- Design and implementation of privileged access models across complex systems
- Delivery within highly controlled / secure environments (e.g. air-gapped, defence)
Desirable skills:
- Expertise with cloud platforms (AWS, Azure) and Infrastructure as Code
- Experience integrating enterprise services (Active Directory, PKI, monitoring, SIEM)
- Hands-on use of DevSecOps tools and CI/CD pipelines
- Automation of account onboarding/offboarding (API-driven)
- Integration with SIEM / SOC tooling for audit and monitoring
- Containerisation platforms (Kubernetes, Docker)
- Experience working with enterprise identity and access management solutions
Interested? Apply today via the link provided.
