Principal Platform Security Architect

Salary: £45,000 - 80,000 per year

Requirements:

• Hands-on experience with embedded Linux systems, including building and customizing platforms using Yocto/OpenEmbedded
• Hands-on experience implementing and validating Linux hardening controls, including service/interface hardening, privilege management, and reduction of system attack surface
• Experience contributing to the implementation or integration of security controls in firmware or embedded environments
• Strong understanding of low-level firmware and boot flows, including BIOS/UEFI, bootloaders, and platform firmware components
• Experience with secure boot chains and firmware trust models, including firmware verification and UEFI-based systems
• Experience working with firmware update mechanisms, including signing, verification, and rollback protection
• Familiarity with Arm architecture and boot processes, including early boot stages and firmware-hardware interaction
• Familiarity with platform interconnects such as PCIe, and associated security considerations in device and data-center environments
• Experience developing automation, validation tools, or scripts, including integration into CI workflows
• Proficiency in C/C++ for systems or embedded development, with the ability to work with low-level components when needed
• Understanding of Linux security fundamentals, including authentication, authorization, and system-level protections
• Familiarity with file system and data protection mechanisms, including encryption approaches such as eCryptfs or similar
• Ability to analyze and reason about firmware and system-level attack surfaces
• Nice to have: experience with BMC platforms or ecosystems such as OpenBMC
• Nice to have: experience with Linux security features such as SELinux, AppArmor, or capabilities
• Nice to have: experience with firmware analysis, fuzzing, or security testing techniques
• Nice to have: familiarity with container security in embedded or management environments
• Nice to have: familiarity with hardware roots of trust such as TPM or DICE
• Nice to have: familiarity with networking and network security concepts, particularly in management or data-center environments

Responsibilities:

• Evaluate and support integration of security mechanisms across BIOS, BMC, and device firmware, including secure boot, firmware verification, update flows, rollback protection, and debug controls
• Contribute to improving the security of Linux-based management environments through system hardening, service isolation, access control, and secure configuration
• Identify potential attack surfaces and configuration gaps, and help apply and validate hardening measures and secure defaults
• Collaborate with internal security evaluation and engineering teams to support testing, develop validation tools/scripts, and integrate security checks into CI workflows
• Support threat modeling and analysis of firmware and management plane components to identify attack paths and improvement areas

Technologies:

• ARM
• Architect
• Embedded
• Firmware
• Hardware
• Support
• Linux
• Network
• PCIe
• Security
• AI

More:

We are Arm, and we are looking for a Platform Security Architect to support the design and improvement of security mechanisms across platform firmware and embedded Linux environments. This is a hands-on technical role spanning embedded systems and data center systems, with work across low-level firmware, embedded Linux, and system hardening. You will work closely with firmware and platform engineering teams and collaborate with internal security evaluation teams to support validation and continuous improvement of security controls. We offer a relocation package, including visa sponsorship support, for candidates who require it. We also support hybrid working, with team-specific patterns determined by role and business needs. We value our 10x mindset, built on curiosity, ambition, collaboration, and turning bold ideas into real technology, and we are an equal opportunity employer committed to mutual respect and inclusive hiring.

last updated 34 week of 2026