Senior Cross Domain Engineer
Synapri
Glasgow
This listing is from Indeed
*Location:* *Glasgow (hybrid working \- 2\-3 days onsite)*
*Duration:* *12 months \+*
*Vetting:* *SC security clearance will be required*
Essential Skills
- Significant experience as a Senior Platform Engineer, Infrastructure Engineer, Systems Engineer, or Cross Domain Engineer within complex enterprise, defence, government, or highly regulated environments.
- Proven experience designing, implementing, supporting, and troubleshooting Microsoft Windows Server infrastructure.
- Strong technical knowledge of:
+ Active Directory
+ Group Policy
+ DNS
+ DHCP
+ Public Key Infrastructure (PKI)
+ Certificate Services
+ Identity and Authentication Services
+ PowerShell
+ VMware vSphere and Virtualisation Technologies
Cross Domain Technologies
- Proven experience supporting, engineering, operating, or assuring High Assurance Gateways (HAGs), Cross Domain Solutions (CDS), or trusted information exchange platforms.
- Strong understanding of Cross Domain architectural patterns including:
+ Two\-way controlled information exchange
+ Multi\-Level Security architectures
+ Trusted Gateway Services
+ Secure Replication Services
+ Guard\-based Information Exchange
- Experience implementing and managing information release policies, content validation controls, file sanitisation processes, malware inspection, and data transfer governance.
- Strong understanding of trust boundaries, security domains, data segregation, and secure information sharing principles.
- Experience supporting security accreditation, assurance activities, and evidence generation for classified systems and regulated environments.
- Strong understanding of cryptographic services, encryption technologies, PKI, certificate lifecycle management, and secure communications.
- Experience assessing and mitigating risks associated with classified information exchange and trusted data transfer mechanisms.
- Experience integrating Cross Domain technologies with enterprise infrastructure services including Active Directory, Identity Services, Security Monitoring platforms, SIEM tooling, and Windows infrastructure.
- Knowledge of secure information exchange requirements across Government, Defence, National Security, or Critical National Infrastructure environments.
- Advanced PowerShell scripting and automation experience.
- Strong understanding of Windows platform lifecycle management, system hardening, patch management, and vulnerability remediation.
- Experience troubleshooting complex infrastructure and platform issues at 3rd and 4th Line support levels.
- Demonstrable experience operating within Agile, DevOps, or product\-aligned delivery teams.
- Experience using infrastructure monitoring, performance management, and operational tooling.
- Working knowledge of Jira, Confluence, and IT Service Management platforms.
- Good understanding of hybrid environments incorporating on\-premise and cloud\-hosted services.
- Familiarity with NCSC security guidance, Secure by Design principles, Zero Trust architectures, and UK Government security frameworks.
- Experience supporting products from vendors such as Everfox (Deep Secure/Garrison), Owl Cyber Defense, Opswat, Viasat CDS, Forcepoint, or similar Cross Domain technologies.
- Experience working within MOD, Defence Digital, Home Office, Cabinet Office, UKIC, Law Enforcement, or other secure government programmes.
- Relevant qualifications in Computer Science, Information Technology, Systems Engineering, Cyber Security, or equivalent practical experience.
- Experience supporting cloud infrastructure platforms including Microsoft Azure, AWS, and GCP.
- The role may require occasional out\-of\-hours work to support maintenance activities, security updates, platform upgrades, and major incident response.
- Occasional travel between organisational locations may be required.
- Candidates must hold current SC Clearance and be willing and eligible to obtain Developed Vetting (DV).
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