SC Cleared Infrastructure Engineer - Secure Greenfield Build

JLA Resourcing Ltd; Portsmouth; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

JLA Resourcing Ltd is seeking an experienced SC Cleared Infrastructure Engineer to join a greenfield Defence programme. The role is predominantly remote with about four days per month onsite near Portsmouth.

You will design and build secure Windows/Linux infrastructure, implement hardening, monitoring, logging and Zero Trust principles, and work across AD, Hyper-V and security controls. The position requires active SC clearance and is Outside IR35.

Qualifications

• Windows Server, Active Directory and Group Policy experience.
• Microsoft virtualization experience, ideally Hyper-V.
• Working knowledge of Linux/Ubuntu.
• Experience building infrastructure environments from the ground up.
• Strong security hardening experience.
• Knowledge of SIEM, logging, monitoring and observability; Splunk would be beneficial.
• Experience with vulnerability management and security configuration/compliance.
• An understanding of networking and firewall technologies.
• Previous experience within Defence, Government or another secure environment.
• Autonomous work style, turning requirements into practical technical solutions.

Responsibilities

• Design and build secure infrastructure within a greenfield environment.
• Work across Windows Server 2022/2025, Active Directory, Group Policy and Windows 11, alongside some Linux/Ubuntu.
• Configure and harden Microsoft infrastructure and virtualisation solutions, including Hyper-V.
• Implement infrastructure security controls and Secure by Design principles.
• Work with networking and security components, including firewalls, identity and access controls.
• Support SIEM, centralised logging, monitoring and observability, potentially including Splunk.
• Support vulnerability management, remediation and technical assurance.
• Produce technical designs, build documentation and configuration baselines.
• Investigate technologies and environments, taking solutions from initial requirements through to implementation.

Skills

Windows Server

Active Directory

Group Policy

Hyper-V

Linux/Ubuntu

Security hardening

SIEM

Logging

Monitoring

Observability

Splunk

Vulnerability management

Networking

Firewalls

Tools

Splunk

Job description

JLA Resourcing Ltd is seeking an experienced SC Cleared Infrastructure Engineer to join a greenfield Defence programme. The role is predominantly remote with about four days per month onsite near Portsmouth.

You will design and build secure Windows/Linux infrastructure, implement hardening, monitoring, logging and Zero Trust principles, and work across AD, Hyper-V and security controls. The position requires active SC clearance and is Outside IR35.