Network Infrastructure Engineer

Marks Sattin; Yeovil; On-site; GBP 45,000 - 65,000; Full time

Job summary

Marks Sattin is looking for 4 engineers specialized in secure infrastructure and networking for defence/public sector programmes. These engineers will be responsible for end-to-end project delivery in controlled environments, engaging in tasks such as design, build, integration, and operational readiness.

The ideal candidates must possess strong engineering skills along with solid networking fundamentals and experience in regulated settings. Entrants must already hold DV security clearance to apply for these positions.

Qualifications

• Strong engineering experience in secure/regulated environments.
• Solid networking fundamentals including TCP/IP, DNS, DHCP.
• Knowledge of VMware/Hyper-V and NSX-T virtualisation.

Responsibilities

• Deliver secure infrastructure/network outcomes within defined work packages.
• Produce and review high-level and low-level design documentation.
• Integrate, test, and troubleshoot across compute/storage/network layers.

Skills

Engineering experience in secure/regulated environments

Networking fundamentals (TCP/IP, DNS, DHCP)

Virtualisation knowledge (VMware/Hyper‑V; NSX‑T)

Working knowledge of security controls

Job description

We’re delivering secure, virtualised infrastructure and networking for defence/public sector programmes and are hiring 4 engineers across platform and network specialisms.

These roles suit engineers who can own delivery end-to-end in controlled environments: design, build, integration, test, hardening and operational readiness.

4 openings

• Technical authority for SDDC platform design/build/operations
• VCF stack: vSphere, vSAN, NSX-T, Aria Suite
• Platform architecture, integration and secure-by-design assurance
• Lead delivery/support of VCF-based platforms and work packages
• Integrate and test platform components against security/performance requirements
• Drive lifecycle activities (patching/upgrades/deployment automation where possible)
• Windows + RHEL engineering and administration in secure estates
• Platform hardening, patching and compliance
• Identity/access integration (AD, Group Policy, LDAP concepts)
• Virtualised infrastructure design/build/support (VMware/Hyper‑V)
• Design/configure/support NSX‑T networking in secure enterprise environments
• Logical switching/routing, micro‑segmentation, SDN patterns
• Integration of NSX within virtualised platform environments (e.g., VCF)
• Multi‑vendor network exposure (Cisco or equivalent), plus firewalls/VPN/segmentation

What you’ll do

• Deliver secure infrastructure/network outcomes within defined work packages
• Produce and review HLD/LLD and technical documentation
• Integrate, test and troubleshoot across compute/storage/network layers
• Collaborate with stakeholders and contribute to engineering standards/governance
• Apply automation where valuable (Ansible/Terraform/APIs; scripting)

Essential skills

• Strong engineering experience in secure/regulated environments
• Solid networking fundamentals (TCP/IP, DNS, DHCP; plus routing/switching for network stream)
• Virtualisation knowledge (VMware/Hyper‑V; NSX‑T for network stream)
• Working knowledge of security controls and accreditation expectations
• Comfortable with documentation, design reviews, and delivery ownership

Security clearance

DV clearance will be required for these roles. Candidates must already hold DV