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    Embedded Security Software Engineer

    • 16855
    • Software Engineering
    • Experienced Professionals
    • ISG Device Management
    • Device OS Device Engineering
    • UK
    • Cambridge


    We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class.

    Job Description

    Bring security and connectivity to even the smallest of devices through your contributions to open source projects that form the backbone of the Internet of Things: Mbed TLS, Mbed Crypto, and Mbed OS.

    We are looking for an experienced embedded software engineer to join the Devices Security team in Arm's Internet Services Group (ISG), responsible for development of the device security stack.

    You will have a strong interest in secure software and embedded systems as well as in increasing the number of IoT devices. This is your opportunity deliver a vital part of the IoT, helping to ensure they will stay robust and secure, despite their small size.

    What will you be responsible for?

    As an embedded security software engineer, you will lay the secure foundation of Mbed OS. You'll work as part of an agile team dedicated to driving the growth of IoT.

    You will secure and optimize the entire device stack: net code, TLS protocol, cryptography, OS, and drivers. You'll write and develop tight, high assurance software in C and assembly, participating in code reviews to ensure your peers do the same. You will gather requirements and build suitable solutions.

    Job Requirements

    Who are you?

    • Strong C programmer
    • Familiar with the common security issues that arise from using C
    • Excellent interpersonal skills
    • Phenomenal teamwork skills
    • Self-starter with a high degree of initiative
    • Appreciation of open source development
    • Fluent in English language, both written and spoken

    What makes you stand out?

    • Experience developing secure software
    • Understanding of common vulnerabilities and their exploitation
    • Experience in an assembly language (Thumb-2, x86, 6502, 8051, 68k, MSP430, etc.)
    • You play Capture the Flag for fun
    • You are interested in physical attacks (e.g. SCA, FI)
    • Experience working with an open source community
    • Experience with open source methods and practices, and use of git
    • You read the TOASSA and found it interesting
    • You know each rule of the SEI CERT C Coding Standard by its reference
    • Experience in development of cryptographic libraries

    At Arm, we are guided by our core beliefs that reflect our rare culture and guide our decisions, defining how we work together to defy ordinary and shape extraordinary:

    We not I

    • Take daily responsibility to make the Global Arm community thrive.
    • No individual owns the right answer. Brilliance is collective.
    • Information is crucial, share it.
    • Realise that we win when we collaborate — and that everyone misses out when we don’t.

    Passion for progress

    • Our differences are our strength. Widen and mix up your network of connections.
    • Difficult things can take unexpected directions. Stick with it.
    • Make feedback positive and expansive, not negative and narrow.
    • The essence of progress is that it can’t stop. Grow with it and own your own progress.

    Be your brilliant self

    • Be quirky not egocentric.
    • Recognise the power in saying ‘I don’t know’.
    • Make trust our default position.
    • Hold strong opinions lightly.

    Arm has a responsibility to ensure that all employees are eligible to live and work in the UK.

    ARM Benefits


    Your particular benefits package will depend on position and type of employment and may be subject to change. Your package will be confirmed on offer of employment. Arm’s benefits program provides permanent employees with the opportunity to stay innovative and healthy, ensure the wellness of their families, and create a positive working environment.

    • Annual Bonus Plan
    • Discretionary Cash Award
    • Group Personal Pension Plan with enhanced company contribution
    • Medical, Travel, Health & Life Insurances
    • Holiday, 25 days annual leave with option to buy an additional 5 days per year
    • Sabbatical, 20 paid days every four-year of service
    • Volunteering, One (1) paid working day each year (TeamARM)
    • Varies by location: cycle to work, free car parking, gym on site, team and social events

    About Arm

    Arm® technology is at the heart of a computing and connectivity revolution that is transforming the way people live and businesses operate. From the unmissable to the invisible; our advanced, energy-efficient processor designs are enabling the intelligence in 86 billion silicon chips and securely powering products from the sensor to the smartphone to the supercomputer. With more than 1,000 technology partners including the world’s most famous business and consumer brands, we are driving Arm innovation into all areas compute is happening inside the chip, the network and the cloud.

    With offices around the world, Arm is a diverse community of dedicated, innovative and highly talented professionals. By enabling an inclusive, meritocratic and open workplace where all our people can grow and succeed, we encourage our people to share their unique contributions to Arm's success in the global marketplace.

    About the office

    At our global HQ in Cambridge, England we house the majority of our engineering and our corporate groups that deliver our extraordinary success. As a world-renowned university town, Cambridge boasts both a beautiful countryside and a historical town center. Local activities include punting on the River Cam and the many museums that reside within Cambridge University.

    Cambridge, UK - Global HQ
    Arm Ltd.
    110 Fulbourn Road
    GB-CB1 9NJ
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