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Senior Embedded Software Engineer
FiltronicEmbedded Software Engineer developing embedded Linux control platforms for RF and communications. Collaborating with multidisciplinary teams in a hybrid working environment based in Cambridge, England.
Tech Stack
Tools & technologiesDockerKubernetesLinuxPythonRTOS
About the role
Key responsibilities & impact- Architecting, developing, and maintaining subsystem firmware in Zephyr or bare-metal environments.
- Architecting, developing, and maintaining embedded Linux systems using Yocto.
- Supporting board bring-up, including diagnosis using oscilloscopes, logic analysers, and software-based debugging techniques.
- Designing and maintaining board-to-board communication protocols.
- Designing and maintaining networking interfaces, including REST APIs, SNMP agents, and OpenAPI specifications.
- Implementing and debugging TCP/UDP communication layers, low-level networking behaviour, and protocol performance.
- Developing secure communication methods and applying best practices for authentication, encryption, secure OTA updates, and system hardening.
- Using tools such as Nmap, OpenVAS, Nessus, or similar to assess system vulnerabilities and improve security.
- Developing system services, daemons, device drivers, and communication middleware on embedded Linux.
- Leading troubleshooting and root-cause analysis for embedded networking and security issues.
- Defining embedded software requirements, interface specifications, and technical documentation.
- Working closely with hardware, FPGA, and systems engineers to ensure reliable and secure data and control flow.
Requirements
What you’ll need- Bachelor’s degree in Computer Science, Electronic Engineering, or a related field, or equivalent practical experience in low-level embedded systems development.
- Strong professional experience in embedded Linux software development.
- Professional experience in one or more real-time operating systems (RTOS) and/or bare-metal development.
- Solid experience in prototype board bring-up.
- Strong proficiency in C/C++ for embedded systems, including optimising CPU and RAM utilisation.
- Knowledge of digital communication interfaces such as Gigabit Ethernet, CAN, SPI, I2C, UART, and RS422.
- Strong debugging experience using oscilloscopes, logic analysers, and software debugging tools such as GDB, perf, and valgrind.
- Excellent analytical, communication, and documentation skills.
- Solid experience with ARM Cortex-M and Cortex-A devices, particularly STM32.
- Hands-on experience with the Yocto Project, PetaLinux, or similar build systems.
- Professional experience with Zephyr OS.
- Strong understanding of Linux kernel architecture, device drivers, bootloaders, systemd, and system services.
- Solid understanding of secure networking protocols such as TLS, SSH, IPSec, and HTTPS, as well as authentication and encryption methods.
- Experience in secure bootloader and firmware update development.
- Solid proficiency in Python.
- Experience with extremely high frequency RF systems.
- Familiarity with MISRA C/C++ or other high-reliability embedded software standards.
- Experience in Linux systems automation, including CI/CD and testing.
- Familiarity with container technologies such as Docker and Kubernetes.
- Basic soldering ability for minor modifications or attaching leads for probing.
- Ability to obtain SC security clearance, where required by the nature of the work.
Benefits
Comp & perks- 37.5 hour working week
- 25 days’ holiday plus public holidays, with the option to buy up to 5 additional days
- Contributory pension scheme with up to 8% company contribution
- Life Assurance (4 x basic salary)
- Income Protection Insurance
- Save As You Earn (SAYE) share scheme
- Electric Vehicle (EV) scheme
- Cycle to Work scheme
- Volunteering day
- Learning and development opportunities
- Hybrid working available
ATS Keywords
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Hard Skills & Tools
Embedded Linux DevelopmentC/C++ ProgrammingReal-Time Operating Systems (RTOS)Debugging with OscilloscopesDigital Communication InterfacesSecure Communication MethodsDevice Drivers DevelopmentLinux Kernel ArchitecturePython ProgrammingFirmware Update Development
Soft Skills
Analytical SkillsCommunication SkillsDocumentation Skills
Certifications
Bachelor’s Degree in Computer Science or Electronic EngineeringSC Security Clearance