> Markdown version of [/jobs/ext/2490541-cybersecurity-software-engineer](https://www.wearedevelopers.com/jobs/ext/2490541-cybersecurity-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Cybersecurity Software Engineer - **Company:** JAM Recruitment - **Location:** London, UK - **Experience:** Experienced - **Salary:** £41,500.0 - £71,000.0 - **Contract:** Temporary contract - **Skills:** C (Programming Language), User Authentication, AUTomotive Open System Architecture (AUTOSAR), Booting (BIOS), Configuration Management, Code Review, Cyber Security, Computer Programming, Software Debugging, Embedded Software, Firmware, GNU Linker, Issue Tracking Systems, MISRA C (C Programming Language), ISO/IEC 15504, RSA (Cryptosystem), Security Software, Software Engineering, Systems Integration, U-Boot - **Published:** August 5, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5827652617 ## About the Role * We require 5-10 years of automotive embedded software development experience, including at least 3 years of hands-on embedded cybersecurity experience. * We require deep AUTOSAR Classic experience with a leading configuration tool, preferably Vector DaVinci or MICROSAR. * We require proven hands-on integration experience with Infineon AURIX HSM, including HSM firmware, host-side driver, key slots, and secure services. * We require practical implementation experience with Secure Boot on AURIX or a comparable platform, including chain of trust, measured boot, and secure key storage. * We require strong C programming skills with MISRA-C:2012, embedded programming, linker and memory layout, MPU, and bootloader-to-application transitions. * We require working knowledge of UDS (ISO 14229-1), including Security Access (0x27), Authentication (0x29), and secure flashing (0x34 / 0x36 / 0x37) with signature verification. * We require solid knowledge of the AUTOSAR Crypto Stack (CSM / CryIf / Crypto Driver) and KeyM. * We require a strong understanding of cryptography fundamentals, including AES, SHA-2/3, HMAC, RSA / ECC, ECDSA, and key derivation. * We require familiarity with debug and trace tooling, as well as CAN tooling. * We require working knowledge of ISO/SAE 21434 and Automotive SPICE (ASPICE). * We require experience with configuration management and issue tracking. * We require rigorous debugging discipline and a strong code review culture. ## Description * We implement, integrate, and validate security foundations for our automotive electro-mechanical systems. * We take ownership of HSM integration, Secure Boot, Secure Diagnostics, and Secure Programming within AUTOSAR Classic. * We define and drive implementation patterns for secure software development. * We develop reusable software IP. * We ensure robust, scalable cybersecurity solutions across the software stack. * We collaborate with cross-functional teams to integrate security features across the software stack. Technologies: * AUTOSAR * Cryptography * Embedded * Firmware * HSM * Security * SPICE, We specialise in electro-mechanical systems for the Automotive / EV industry and are seeking a Cyber Security Software Engineer for a contract role based in Surrey, initially scheduled for 6 months. 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