About PentenAmio

PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us.

Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale.

In our 2024 Employee Survey, our team said they enjoy working with us because we:

• Have a friendly and welcoming culture
• Enjoy excellent working conditions with genuine flexibility
• Focus on innovation, have interesting work and a sense of purpose
• Take pride in what we do and deliver tangible results
• Work with cutting edge technologies

About the Role

As an Infrastructure Engineer, you will support managing, maintaining and supporting our internal computing infrastructure including secure environments and cloud-based services. Assisting with testing and assessing technologies to enhance the security or capabilities of environments completing technical work packages for internal and external infrastructure projects.

Typical activities include:

• Collaborate with Project Delivery, Engineering, and Managed Services teams to support stakeholder and customer outcomes.
• Develop and improve infrastructure policies, procedures, and controls to strengthen Information Security.
• Maintain the ISMS and support ISO 27001 and Cyber Essentials Plus audits.
• Identify IT needs and risks, propose solutions, and implement improvements.
• Define and manage risk-based policies, procedures, and system enhancements.
• Support internal IT infrastructure, including devices, networks, monitoring, and security patching.
• Provide technical support, enhance documentation, and help build an ITIL-driven service culture.

Skills and Experience

• Broad hands-on experience designing, configuring, and supporting enterprise IT infrastructure across diverse platforms and technologies.
• Strong troubleshooting skills across infrastructure components including networking, storage (SAN/iSCSI), Windows/Linux systems, and virtualisation platforms (Hyper-V, Proxmox, VMware).
• Proven experience working within security frameworks such as ISO27001, CIS, NCSC, and Cyber Essentials Plus.
• Skilled in managing infrastructure tools like Active Directory, Azure, Intune, Autopilot, EntraID, and scripting in PowerShell/Bash.
• Strong knowledge of networking concepts including firewalls, load balancing, VPNs, VLANs, DNS, DHCP, and enterprise Wi-Fi.
• Experienced with containerisation (LXC, Docker), Linux tools (Nginx, OpenSSL, FreeIPA), and monitoring platforms like the ELK Stack.
• Excellent communication, customer service, problem-solving, and team collaboration skills with a proactive and flexible approach.

Qualifications and Eligibility Criteria

To be eligible for this position you must:

• A minimum 3 years’ experience as an Infrastructure or Systems Engineer across multi-vendor enterprise IT environments.

• Be a British Citizen; and
• Hold or be eligible for NSV – DV (please see the gov.uk for guidance)