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Infrastructure Engineer
**Senior Principal Infrastructure Engineer (x2) – Privileged Access Management & Public Key Infrastructure
We’re seeking two hands-on Principal Infrastructure Engineers to act as domain technical authorities for critical defence/public sector programmes. This role demands strong engineering ownership—spanning requirements, design, build, integration, and assurance—in a highly regulated and controlled environment.
Role Focus Areas (2 Openings)
1. Privileged Access Management (PAM)
- Design and implement privileged access models across complex IT systems
- Integrate PAM tooling (e.g., CyberArk) into enterprise platforms and services
- Implement secure credential storage, rotation, and access control patterns
- Automate user onboarding/offboarding and privileged workflows (primarily via API-driven processes)
- Ensure alignment with auditability and monitoring (e.g., SIEM/SOC integration where applicable)
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2. Public Key Infrastructure (PKI)
- Architect and implement PKI solutions across enterprise estates
- Manage certificate lifecycle (issuance, renewal, revocation) at scale
- Integrate PKI with Active Directory, applications, and devices
- Define and enforce trust models and certificate usage policies
- Preferred experience with Hardware Security Modules (HSMs) (e.g., Thales or equivalent)
Key Responsibilities
- Lead secure-by-design platform delivery across on-premises, hybrid, and cloud environments
- Translate complex requirements into high/low-level designs and supporting documentation
- Own work package delivery, including:
- Planning and estimation
- Technical quality assurance (gates and reviews)
- Reporting and compliance monitoring
- Mentor engineering teams, setting and raising technical standards
- Operate within highly regulated/secure environments, including air-gapped constraints where necessary
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Essential Skills & Experience
Technical Proficiency
- Strong expertise in Windows and Linux systems
- Virtualisation fundamentals (VMware AND/OR Hyper-V)
- Networking fundamentals (TCP/IP, DNS, DHCP, firewalls)
- Automation/scripting proficiencies in:
- PowerShell
- Bash
- Python
- Ansible
- Terraform
- Security controls expertise and knowledge of accreditation processes
- Demonstrated experience across the systems engineering lifecycle in controlled environments
Security Clearance
- DV (Defence Vetting) clearance is mandatory – candidates must already possess this for consideration.
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