Senior Linux Product Engineer (AU)

About the role

Senior Linux Engineer will lead and evolve the operation, performance, and security of Linux systems across DroneShield’s infrastructure and edge platforms. This is a hands-on, systems-level engineering role working across production servers, on-prem assets, and edge compute devices, with a focus on reliability, automation, and system observability.

You’ll be part of the Linux Product Team with a main focus on DroneSentry C2 and contribute to a broad scope of systems.

This role reports to the Platforms Lead.

Responsibilities, Duties and Expectations 

• Own the configuration, tuning, and lifecycle of Linux systems across DroneShield’s product and infrastructure landscape
• Build secure Linux images for company-wide use, from embedded systems to critical infrastructure
• Optimise performance and reliability across bootloaders, init systems, filesystems, and kernel modules
• Automate provisioning, patching, and system diagnostics using Bash, Python, and infrastructure tooling
• Lead secure-by-design hardening efforts: kernel lockdown, SELinux/AppArmor, TPM integration
• Design telemetry and observability into the operating system: system metrics, structured logs, boot diagnostics
• Maintain and evolve custom Linux images based on Ubuntu Classic and Ubuntu Core, for both x86 and ARM platforms
• Provide Level 3 support for OS and system-level issues across production and deployed assets
• Collaborate with security and embedded teams to ensure OS stability and traceability
• Document standards, interfaces, recovery workflows, and tuning decisions.

Qualifications, Experience and Skills 

• Extensive experience operating and debugging Linux systems (Ubuntu Core, Ubuntu Classic, Debian, RHEL, or Yocto-based)
• Deep understanding of Linux internals: kernel, init systems, udev, cgroups, bootloaders
• Proficiency in Bash scripting and at least one additional language (e.g. Python, Go)
• Experience with secure boot, TPMs, disk encryption, and OS-level security controls
• Experience building or managing custom Linux images for embedded or production use
• Working knowledge of system observability, logging, and performance analysis tools
• Familiarity with PXE, systemd services, Kickstart/preseed, or cloud-init workflows
• Understanding of core networking fundamentals (IP routing, DNS, iptables/nftables, bonding/VLANs)

Nice to have

• Experience working in a product team
• Understanding of container runtimes and Linux namespaces
• Experience with UKIs, GRUB, shims, or early boot firmware
• Exposure to embedded Linux platforms and ARM SoCs
• Familiarity with real-time Linux (PREEMPT_RT) or deterministic system workloads
• Contributions to open-source Linux or OS infrastructure tooling
• Background in secure infrastructure or regulated environments (e.g. defence, critical systems)

Note for recruitment agencies: We do not accept unsolicited candidates from external recruiters unless specifically instructed.