Network & Infrastructure Engineer – Secure Containerised Systems

Expleo Group; Cheadle; On-site; GBP 30,000 - 40,000; Full time

Job summary

A technology services company is seeking a Network & Infrastructure Engineer to support secure containerisation and virtualised systems for defence projects in Cheadle. The role requires expertise in Linux networking and secure integrations. Applicants must have SC Clearance and a passion for collaborating on innovative solutions. This entry-level position offers a supportive working environment and opportunities for skill development.

Benefits

Collaborative working environment

Access to accredited training courses

Competitive company benefits

Qualifications

• Expert knowledge of Linux networking and system internals.
• Deep understanding of TCP/IP, UDP, multicast, VLANs, routing, and network namespaces.
• Proven experience integrating secure, containerised workloads.

Responsibilities

• Architect and manage secure network infrastructures for containerised workloads.
• Lead integration of Kubernetes and Docker into air-gapped defence networks.
• Design network segregation, VLANs, and routing for military environments.

Skills

Linux networking

TCP/IP and UDP

Containerised workloads integration

Defence-grade systems familiarity

Job description

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.

Role: Network & Infrastructure Engineer – Secure Containerised Systems

Location: UK-based with work on secure, air-gapped environments as part of defence-related 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 namespaces.
• 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 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
• ExpleoAcademy - 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
• Disability Confident Committed Employer – commitments include inclusive recruitment, accessible vacancies, offering interviews to disabled applicants who meet minimum criteria, reasonable adjustments, and support for existing employees with disabilities
• 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 equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive

Seniority level

Entry level

Employment type

Other

Job function

Industries: IT Services and IT Consulting