> Markdown version of [/jobs/ext/103125-senior-mcu-firmware-engineer-real-time-arm-cortex-m](https://www.wearedevelopers.com/jobs/ext/103125-senior-mcu-firmware-engineer-real-time-arm-cortex-m). 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). --- # Senior MCU Firmware Engineer - Real-Time ARM Cortex-M - **Company:** Hs Design, Inc. - **Location:** Bristol, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** ARM Architecture, C++ (Programming Language), Linux, Embedded C, Firmware, Real Time Systems - **Published:** May 26, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/37364729/ ## About the Role HS Design, Inc. in Bristol is hiring a firmware engineer to lead the design and delivery of MCU firmware for real-time systems. You will own technical decisions while collaborating across hardware, Linux, UI, and test to integrate complete solutions.The ideal candidate will have strong experience with ARM Cortex-M, embedded C/C++, and a background in quality-controlled environments. Flexible hybrid working policies are in place, alongside a range of employee benefits including private healthcare and performance-related bonuses. #J-18808-Ljbffr ## Related Videos - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [Unleashing the Full Potential of the Arm Architecture – Write Once, Deploy Anywhere](https://www.wearedevelopers.com/videos/940-unleashing-the-full-potential-of-the-arm-architecture-write-once-deploy-anywhere) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [When Agents Meet Legacy: Never Change a Running System](https://www.wearedevelopers.com/videos/100320-when-agents-meet-legacy-never-change-a-running-system) - [Modulith Instead of Monolith - Pragmatically Towards Microservices](https://www.wearedevelopers.com/videos/987-modulith-instead-of-monolith-pragmatically-towards-microservices) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Top 6 Hackathons for Developers in 2023](https://www.wearedevelopers.com/magazine/263-top-6-hackathons-for-developers-in-2023) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)