Linux Infrastructure Engineer

About the role

**About Audiebant**

Audiebant is an innovative technology company providing **cutting\-edge audio and notification solutions** for schools and businesses. Our platform integrates **real\-time alerts, player management, cloud APIs, and IoT button\-triggered events.**

**The Role**

You’ll take ownership of an existing, large\-scale Linux estate — cloud servers backed by tens of thousands of bare\-metal edge devices powering critical emergency systems — working alongside our current Linux engineering team to keep it performing reliably at scale while meeting strict security standards. Day to day, this means everything you’d expect from a strong Linux engineer — server administration, automation, patching and hardening — but applied across both our cloud servers and an estate of edge devices measured in the tens of thousands rather than the tens. A solid grounding in Linux security and a genuine interest in doing things properly at scale are essential.

**Key Skills**

* Strong, all\-round Linux engineering and systems administration, comfortable working across any distribution (our estate runs primarily on Ubuntu) * A strong security foundation — hardening, patching, vulnerability management and secure\-by\-design thinking * Bash / Shell scripting for automation at scale * Network configuration and security (DNS, DHCP, VPNs, firewalls) * Managing large\-scale edge device fleets — tens of thousands of devices — and the tooling that makes that practical * Cloud server administration — running core, backend Linux servers on Microsoft Azure * Infrastructure as Code and automation — hands\-on with Ansible and/or Terraform * Containerisation — Docker / Podman * MQTT (or similar lightweight messaging) for real\-time communication across the edge fleet * Certificate infrastructure / PKI for device identity and secure communication at scale * CI/CD and release automation — GitHub Actions for application build, test and deployment (a smaller but growing part of the role)

**What You'll Be Doing**

* Look after an established estate of tens of thousands of bare\-metal Linux edge devices, together with the cloud servers behind them, ensuring performance, security and reliability at scale. * Design, build and maintain core Linux cloud servers and the wider bare\-metal edge fleet, identifying and resolving bottlenecks before they become problems. * Implement and maintain strict security protocols to protect systems and data across the estate. * Regularly monitor for vulnerabilities, apply patches and conduct security audits. * Configure and manage firewalls, intrusion detection systems and VPNs. * Write Bash / Shell scripts and build automation to manage updates, monitoring and backups consistently across thousands of devices. * Configure and maintain DNS, DHCP and VPNs, and troubleshoot network\-related issues. * Work with MQTT and related technologies to support real\-time communication across the edge fleet. * Help build and maintain CI/CD pipelines (GitHub Actions) for application build, testing and deployment. * Create and maintain clear documentation for system configurations and procedures, in line with our ISO 27001 and ISO 9001 standards. * Collaborate with cross\-functional teams to enhance system reliability and efficiency.

**What We're Looking For**

* Minimum 3 years’ experience in Linux systems administration / infrastructure engineering, ideally including large or scalable estates. * Strong all\-round Linux knowledge, comfortable working across any distribution. * A genuine security mindset and solid understanding of Linux hardening and best practice. * Proficiency in Bash / Shell scripting for automation and task management. * Strong understanding of networking protocols, services and security practices, including VPNs at scale. * Relevant certifications are highly desirable — for example LPIC\-1/LPIC\-2, CompTIA Linux\+, RHCSA, Ubuntu/Canonical certifications, or a security qualification such as CompTIA Security\+. We’ll also support the right person in working towards these. * Experience with several of the modern fleet toolchain — Infrastructure as Code (Ansible, Terraform), containerisation (Docker / Podman), MQTT and certificate/PKI infrastructure — and the willingness to develop the rest. * Passing familiarity with PHP and/or Go is a nice to have, but not required. * Problem\-solving — the ability to diagnose and resolve complex system issues efficiently. * Communication — clear and effective verbal and written communication. * Adaptability — eagerness to learn and adopt new technologies. * Teamwork — the ability to collaborate effectively in a fast\-paced environment.

**What We Offer**

* Competitive salary * Hands\-on learning and genuine professional growth, including support towards relevant certifications * 20 days’ annual leave \+ bank holidays * Free onsite parking * The chance to be part of a fast\-growing company focused on career development, working on technology that genuinely matters — edge systems that people rely on in emergencies

**How to Apply**

If you’re passionate about learning Linux systems, security, and automation, we’d love to hear from you! Apply now by sending your CV and a short cover letter to **damian.buckley@audiebant.com.**

Join Audiebant and be part of an innovative team shaping the future of real\-time notification and audio technology!

Job Type: Full\-time

Pay: £40,000\.00\-£50,000\.00 per year

Benefits:

* Casual dress * Company events * Company pension * Free parking * On\-site parking

Ability to commute/relocate:

* Preston PR4 2SH: reliably commute or plan to relocate before starting work (required)

Experience:

* Linux: 3 years (required)

Work authorisation:

* United Kingdom (required)

Work Location: In person