Network & Infrastructure Engineer – Secure Containerised Systems en Expleo

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 individual 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.

Responsibilities

• 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.

Essential skills

• 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.

Experience

• 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.

What do I need before I apply

• SC Clearance 

Benefits

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges  
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects   
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses  
• Competitive company benefits
• Always working as one team, our people are not afraid to think big and challenge the status quo 

• As a Disability Confident Committed Employer we have committed to:
• Ensure our recruitment process is inclusive and accessible
• Communicating and promoting vacancies
• Offering an interview to disabled people who meet the minimum criteria for the job
• Anticipating and providing reasonable adjustments as required
• Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people

“We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age”. 

We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive