Embedded Systems Engineer

Buckingham
4 days ago
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On site: This role is on site 4 days per week

Security Clearance: Sole British born citizenship

Secure Boot & SoC Integration
Experience with Arm Cortex-M/A SoCs, secure boot chains (TF-M, MCUboot), device tree configuration, and hardware bring-up for mission-critical platforms.

Core Profile

  • Embedded Systems Engineer (Secure Boot & SoC Integration)
    Focused on Arm-based SoCs, with experience in:

    • Boot chains (ROM → FSBL → TF-M/MCUboot → application)

    • Secure boot concepts (chain of trust, key provisioning, anti-rollback)

    • Arm TrustZone for Cortex-M (SAU/IDAU configuration)

    • Device tree configuration for complex SoCs (MPUs with multiple cores)

    • Flash partitioning and update mechanisms (MCUboot, PSA FWU)

    • Low-level bring-up (clocks, memory controllers, OctoSPI/NOR, UART)

      Key Skills

  • TF-M integration: Building secure/non-secure images, configuring partitions, enabling PSA services.

  • MCUboot: Understanding slot layout, signature verification, serial recovery.

  • U-Boot/FreeRTOS familiarity: knowledge of device trees and bootloaders (U-Boot, TF-A) to support future expansion plans.

  • Security fundamentals: Public key infrastructure, image signing, secure provisioning.

  • Debug tools: JTAG/SWD (SEGGER J-Link), CubeProgrammer, and familiarity with OTP fuses and debug lock.

    Experience Indicators

  • Worked on STM32MP1/MP2, NXP i.MX, or similar SoCs.

  • Delivered secure boot implementations for aerospace/defence or IoT platforms.

  • Comfortable with bare-metal and RTOS environments, but also understands SoC complexity (firewalls, TrustZone, multiple cores)

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