Network & Infrastructure Engineer – Secure Containerised Systems

Overview

Expleo is standing up a new Algorithms & Infrastructure Engineering team to support Underwater Systems (UWS) in Cheadle. This is a collective capability build rather than isolated placements — the team will operate collaboratively across containerisation, networking, and virtualised computing domains to deliver secure, high-performance environments for advanced sonar and mission systems.

• Architect and manage secure network infrastructures supporting containerised and virtualised workloads.
• Lead on the integration of Kubernetes, Docker/Podman deployments into air-gapped defence networks.
• Configure and optimise Linux systems for high-throughput, low-latency environments.
• Design and maintain network segregation, VLANs, routing, and multicast configurations for constrained military environments.
• Support virtualisation platforms (KVM, QEMU, hypervisors) and their interaction with networking layers.
• Collaborate closely with software and algorithm engineers to ensure seamless system interoperability.

• Expert Linux networking and system internals knowledge.
• Deep understanding of TCP/IP, UDP, multicast, VLANs, routing, and network name spaces.
• Proven experience integrating containerised workloads into secure, distributed environments.
• Familiarity with defence-grade or air-gapped systems and corresponding security practices.

• Exposure to naval/sonar mission systems or similar real-time data environments.
• Experience with firewalling, ACLs, and encryption technologies.
• Network performance monitoring and optimisation within virtualised or containerised systems.

• SC Clearance

• Collaborative working environment with colleagues and clients.
• Opportunities to expand skills through challenging projects and Expleo Academy training.
• Competitive company benefits and a culture that encourages thinking big and challenging the status quo.
• Disability Confident Committed Employer commitments: inclusive recruitment, reasonable adjustments, and ongoing support for employees with disabilities or long-term health conditions.

We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of race, sex, disability, religion/belief, sexual orientation or age. We treat everyone fairly and provide the necessary support and adjustments to thrive.