The Role. We’re searching for a Senior/Staff Analog Design Engineer to. architect, design and bring to production ultra‑high‑speed (> 20 GHz analog bandwidth, > 40 GS/s) CMOS ADCs and DACs. that directly interface with our optical compute fabric. Success in this role requires mastery of low‑jitter sampling circuits, broadband front ends, and calibration techniques that deliver outstanding ENOB and power efficiency. The ideal candidate will have a...
The Role. We’re searching for a Staff Performance Modelling Engineer (. San Francisco). to create and own the analytical and simulation models that steer OTPU architecture and software evolution. You will build functional simulators as well as high-fidelity, cycle-accurate models of our optical compute system. This role is critical to explore “what-if” design spaces, and deliver insights that directly influence our software, hardware, and optical...
The Role. We’re searching for a Senior Performance Modelling Engineer (. San Francisco. ) to create and own the analytical and simulation models that steer OTPU architecture and software evolution. You will build functional simulators as well as high-fidelity, cycle-accurate models of our optical compute system. This role is critical to explore “what-if” design spaces, and deliver insights that directly influence our software, hardware, and optic...
The Role. We are seeking highly skilled and motivated Senior/Staff Digital Design Engineers with a strong focus on CMOS digital design to take. end‑to‑end ownership of high‑speed, real‑time data‑processing silicon. —from early algorithm modelling to verified RTL and silicon bring‑up. You will join a multidisciplinary group creating next‑generation OTPUs where digital, optical and mixed‑signal domains intersect. The ideal candidate will have a str...
The role. We’re searching for Senior Compiler Engineers to join the team building the ML backend (compiler, run-time, and debugger) for our next-generation OPTUs that connect PyTorch, Tensorflow, JAX, and MXNet down to our low-level kernel drivers.Your mission will be to create seamless support for a broad ecosystem of large AI models, and ensure we are pushing the limits of their performance envelope by closely partnering with hardware and model...
The Role. We are seeking highly skilled and motivated. Senior/Staff Analog Engineers. with expertise in. CMOS analog design. to lead the design, validation, and implementation of high-performance analog circuits for our next-generation OTPUs. This role demands deep knowledge of. CMOS analog circuit design, simulation, and testing. The ideal candidate will have a strong background in. electrical engineering and semiconductor physics. and a passion...
The Role. We’re searching for Staff Compiler Engineers to architect and build the ML backend (compiler, run-time, and debugger) for our next-generation OPTUs. You will own integration with PyTorch, Tensorflow, JAX, and MXNet down to our low-level kernel drivers. Your mission will be to create seamless support for a broad ecosystem of large AI models, and ensure we are pushing the limits of their performance envelope by closely partnering with har...
The Role. We are seeking an experienced Analog /RF IC designer to architect, implement and productise the. multi‑lane, multi‑standard SerDes (serialiser / deserialiser) interfaces. that move data in and out of the OTPU at tens of gigabits per second per lane. You will own both transmit and receive paths—equalisers, CDRs, drivers, samplers and clocking assist blocks—while ensuring robust operation over challenging channels and across multiple aggr...
Company Overview. Flux is pioneering a new class of AI accelerators called Optical Tensor Processing Units (OTPUs). Our work environment rewards innovation, speed, and bold thinking. We are headquartered in London with offices in Austin and San Francisco. The Role. We’re looking for a Talent Acquisition Coordinator to support hiring during one of Flux’s most critical periods of growth. We’re building a software team in San Francisco from the grou...
Company Overview. Flux is pioneering a new class of AI accelerators called Optical Tensor Processing Units (OTPUs). Our work environment rewards innovation, speed, and bold thinking. We are headquartered in London with offices in Austin and San Francisco. The Role. We’re looking for a Talent Acquisition Partner to drive hiring during one of Flux’s most critical periods of growth. We’re building a software team in San Francisco from the ground up ...
The Role. We are seeking highly skilled and motivated Senior/Staff Digital Design Engineers with a strong focus on CMOS digital design to take. end‑to‑end ownership of high‑speed, real‑time data‑processing silicon. —from early algorithm modelling to verified RTL and silicon bring‑up. You will join a multidisciplinary group creating next‑generation OTPUs where digital, optical and mixed‑signal domains intersect. The ideal candidate will have a str...
The Role. We’re searching for an. ASIC Digital Design Manager. to lead and deliver the digital subsystems of our next-generation high-speed mixed-signal ASICs. This is a hands-on leadership role with a strong focus on execution speed, first-time-right delivery, people management, and cross-functional alignment. You will drive your team to deliver complex digital systems that integrate high-bandwidth interfaces, deterministic control loops, and ad...
