Senior Embedded Systems Engineer

JR United Kingdom; Watford; On-site; GBP 135,000 - 165,000; Full time

Job summary

A cutting-edge AI company is seeking a Senior Embedded Systems Engineer in Watford to design high-performance tooling for their Optical Tensor Processing Units. The role involves developing robust embedded solutions, collaborating across teams, and applying advanced techniques in software/hardware integration. Passionate engineers interested in shaping the future of AI are encouraged to apply.

Benefits

Salary range up to £165,000

Stock options

Comprehensive healthcare insurance

Private use of 3D printer

Incentive for short commute

Qualifications

• 5+ years experience with bring-up, calibration, and debug of custom hardware systems.
• Proficiency in C/C++ and Python for embedded systems.
• Experience in CI/CD pipelines for embedded development.

Responsibilities

• Architect tooling for hardware validation and rapid prototyping in Python.
• Design and implement embedded systems ensuring hardware safety.
• Develop calibration and debug tooling and implement CI/CD infrastructure.

Skills

Bring-up of hardware systems

Calibration

Debugging

C/C++ programming

Python programming

Building CI/CD pipelines

Hardware debugging tools

Communication skills

Job description

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Senior Embedded Systems Engineer, Watford, Hertfordshire

Company Overview

Flux has developed the world’s first Optical Tensor Processing Unit (OTPU). Flux's OTPUs are custom-designed AI accelerators optimized for training and inference of large AI models. Join us in London to be part of a dynamic team that thrives on innovation and speed.

The role

We’re searching for Senior Embedded Engineers to design and build high-performance tooling supporting 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 operate safely, efficiently, and push their performance limits.

Responsibilities

• Architect robust tooling for hardware validation and bring-up, with rapid prototyping in Python and a clear path to production-grade implementations.
• Design and implement embedded systems for hardware safety, synchronization, and low-level control.
• Develop calibration and debug tooling, primarily in Python.
• Define and implement CI/CD infrastructure tailored for embedded development, ensuring fast iteration and high confidence in system integrity.
• Create systems for real-time monitoring, diagnostics, and fault handling across OTPU hardware.
• Define and enforce boundaries between prototype and production code for maintainability.
• Collaborate with optical, hardware, and software teams to align on system interfaces, requirements, and performance goals.

Skills & Experience

• 5+ years experience with bring-up, calibration, and debug of custom hardware systems (e.g., SoCs, FPGAs, AI accelerators)
• Proficiency in C/C++ for embedded applications, with understanding of real-time constraints, memory models, and hardware interfaces
• Strong Python skills for prototyping, automation, and testing
• Experience building CI/CD pipelines for embedded development
• Proficiency with hardware debugging tools (oscilloscopes, logic analyzers, JTAG, etc.)
• Understanding of hardware/software boundaries, including interrupt handling, bus protocols (e.g., PCIe), and memory-mapped I/O
• Excellent communication skills; ability to thrive in fast-paced, cross-disciplinary environments

Details

• Salary: £135,000 - £165,000 depending on experience
• Stock options in a rapidly growing AI company
• Location: London, Kings Cross, with a 45-minute commute requirement; additional £24,000/year incentive for those within 20 minutes
• Comprehensive healthcare insurance
• Private use of 3D printer

If you are passionate about advancing AI and thrive in a high-energy environment, we want to hear from you. Apply now to join Flux and shape the future of computing.