Senior Embedded Software Engineer

Flux Computing; Camden Town; On-site; GBP 140,000 - 187,000; Full time

Job summary

A technology company specializing in optical processors is seeking a Senior Embedded Engineer to design and build ultra-high performance tooling. You will collaborate across teams and create tools for validation and bring-up. The ideal candidate has over 5 years of experience in hardware systems and deep proficiency in C/C++. Competitive salary and benefits offered, including relocation support and healthcare.

Benefits

£140,000 - £187,000 annual salary

Competitive stock options

Full BUPA healthcare and dental cover

25 days of paid holiday

High-spec tech for everyone

Monthly off-site team socials

Qualifications

• 5+ years experience with bring-up, calibration, and debug of custom hardware systems.
• Deep proficiency in C/C++ for embedded applications.
• Strong Python skills for prototyping and automation.

Responsibilities

• Own and deliver projects on the team's roadmap.
• Partner with optical, hardware, and software teams.
• Create tooling for hardware validation and bring-up.

Skills

C/C++ proficiency

Python programming

Hardware debugging tools

CI/CD pipeline development

Real-time systems understanding

Job description

Overview

We're searching for Senior Embedded Engineers to design and build ultra-high performance tooling that supports our OTPU hardware development. You will own tools that span hardware safety, calibration, debugging, and validation. Your mission is to go from concept to deployment - rapidly iterating, prototyping, and delivering robust embedded solutions that enable our OTPUs to run safely, efficiently, and continuously push the limits of their performance envelope.

Flux Computing designs and manufactures optical processors to train and run inference on large AI models. Join us to be part of a highly motivated and skilled team that thrives on delivering impact and innovation at speed.

Responsibilities

• Project Ownership: Own and deliver projects on your team's roadmap that unlock key high-impact technical and business milestones that drive the success of Flux.
• Collaboration: Partner closely with optical, hardware, and software teams to align on system interfaces, requirements, and performance goals.
• Validation & Bring-up: Create robust tooling for hardware validation and bring-up, with rapid prototyping in Python and a clear path to production-grade implementations.
• Embedded Systems: Design and implement embedded systems for hardware safety, synchronization, and low-level control.
• Calibration & Debug Tooling: Develop calibration and debug utilities - starting with fast Python prototypes and iterating toward robust releases.
• CI/CD for Embedded: Create CI/CD pipelines tailored to embedded firmware, enabling quick iterations and reliable system integrity with hardware-in-the-loop and software-in-the-loop testing.
• Real-Time Monitoring & Fault Handling: Build systems for live hardware diagnostics, monitoring, and automated fault recovery across OTPU platforms.

Qualifications

• 5+ years experience with bring-up, calibration, and debug of custom hardware systems (e.g. SoCs, FPGAs, or AI accelerators).
• Deep proficiency in C/C++ for embedded applications, with a solid grasp of real-time constraints, memory models, and low-level hardware interfaces.
• Strong Python skills for prototyping, automation, and test harness development.
• Demonstrated experience building CI/CD pipelines for embedded development (e.g. automated flashing, test orchestration, artifact tracking).
• Proficiency with hardware debugging tools (oscilloscopes, logic analyzers, JTAG, etc.) and interpreting electrical signals in context.
• Solid understanding of hardware/software boundaries, including interrupt handling, bus protocols (e.g. PCIe), and memory-mapped I/O.
• Excellent written & verbal communication; thrive in fast-paced, cross-disciplinary start-up settings.

Compliance

Due to U.S. export control regulations, candidates' eligibility to work at Flux depends on their most recent citizenship or permanent residency status. We are generally unable to consider applicants whose most recent citizenship or permanent residence is in certain restricted countries (currently including Iran, North Korea, Syria, Cuba, Russia, Belarus, China, Hong Kong, Macau, and Venezuela). Applicants who have subsequently obtained citizenship or permanent residency in another country not subject to these restrictions may still be eligible.

Benefits

• £140,000 - £187,000 annual salary, depending on experience, skills, and location.
• Competitive stock options, you're not just part of the journey, you will own a piece of it.
• Work from our HQ in King's Cross, right in the middle of London's buzzing AI scene.
• Live within 45 minutes of the office? Perfect. Live within 20 minutes? We'll add an extra location bonus to your salary.
• We offer visa sponsorship and full relocation support (UK and abroad).
• Full BUPA healthcare and dental cover.
• High-spec tech for everyone - M4 Macs as standard, M4 Pros for Engineers.
• Sony noise-cancelling headphones and ergonomic setups to keep you comfortable and focused.
• Personal company card to spend on tools that help you do your job.
• Healthy, chef-cooked dinners in the office every night, with something for every diet and taste.
• Monthly off-site team socials.
• 25 days of paid holiday, plus all the UK bank holidays.
• Access to our in-house 3D printer for personal or work projects.
• Cycle2work scheme.
• Need a caffeine fix? We’ve got you covered with a tab at our favourite local coffee shop.
• We offer a pension plan and salary sacrifice options.