Flux Computing builds optical processors to speed up AI training and inference with lower energy use. They develop Optical Tensor Processing Units and other optical chips that rely on light-based circuits, integrated with supporting electronics and control software, and connected to AI frameworks. This positions them as a hardware provider for data centers and research environments handling large models. Category: B2B hardware for AI workloads; integrates with common AI frameworks and data-center tooling. The company targets scalable deployments in enterprises and labs pursuing advanced AI research and production workloads.
Flux Computing builds optical processors to speed up AI training and inference with lower energy use. They develop Optical Tensor Processing Units and other optical chips that rely on light-based circuits, integrated with supporting electronics and control software, and connected to AI frameworks. This positions them as a hardware provider for data centers and research environments handling large models. Category: B2B hardware for AI workloads; integrates with common AI frameworks and data-center tooling. The company targets scalable deployments in enterprises and labs pursuing advanced AI research and production workloads.
The Role
We’re searching for a Director of Hardware - ASICs to own the technical, schedule and organisational delivery of multiple ASICs within OTPU. You will line‑manage the Analog ASIC Lead and Digital ASIC Lead (each with their own teams) and act as the single point of accountability for silicon execution. Success demands a rare blend of hands‑on technical depth, proven people leadership and disciplined program management—all exercised across multiple concurrent tape‑outs.
Responsibilities
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Build and maintain the ASIC master schedule—including IP development, verification, physical implementation, package co‑design, MPW/test‑chip shuttles, qualification and production ramps. Drive weekly cross‑functional reviews and executive read‑outs.
Directly manage and mentor the Analog and Digital ASIC Leads (and, via them, ~25 + engineers). Set goals, hire strategically, grow technical leaders and foster a culture of first‑pass silicon success.
Provide architectural guidance and critical design‑review sign‑off for blocks running from > 20 GHz analog bandwidth to > 100 MHz digital core clocks. Resolve spec splits, timing closures, power budgets and mixed‑signal interactions.
Act as primary interface to foundry and IP vendors: negotiate PDK access, mask slots, MPW shuttles, wafer starts, corner‑split strategies and yield‑learning plans.
Own silicon CAPEX/OPEX budgets, mask and backend costs, and risk registers. Drive make/buy decisions for IP, EDA, test hardware and probe cards.
Skills & Experience
15 + years in semiconductor development, with 3 + complex ASICs driven from concept through ramp‑to‑production at ≤ 22 nm.
Demonstrated track record managing managers and multi‑disciplinary teams (analog/RF, digital, verification, physical design, test).
Deep understanding of high‑speed mixed‑signal design challenges—multi‑lane SerDes, fast‑settling DACs/ADCs, sub‑picosecond clocking, advanced power‑delivery and packaging.
Proven success negotiating foundry schedules, MPW slots, mask‑set revisions and yield‑improvement plans with Tier‑1 fabs (TSMC, Samsung, GF, UMC, etc.).
Compensation & Benefits
$247,000 – $301,000 + 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 office in The Domain, right in buzzing Austin with parking available for easy access.
Live within 45 minutes of the office? Perfect. Live within 20 minutes? We’ll add an extra location bonus ($24K) to your salary.
We offer financial and operational relocation support (US and abroad), through a dedicated third-party provider who is on hand to make your move to Austin as seamless as possible.
We offer visa sponsorship so if we make you an offer we will make every reasonable effort to secure you a visa, but we may not be able to sponsor visas for every role and candidate.
We’re in the process of setting up a US group policy once we have 5+ employees. In the meantime, we’re providing a health insurance stipend of $800/month to offset costs. Once the group policy is live, Flux will cover 100% of the employee premium, and offer options like dental, vision and life insurance with an aim to remain competitive among Austin tech and start up employers.
We offer US employees access to a 401(k) retirement savings plan and we plan to introduce an employer match in line with Austin tech market norms (commonly in the 4-5% range). Our goal is to keep our retirement benefits competitive while we scale.
Top of the line, high-spec tech for everyone.
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 - like ChatGPT Pro or anything else that boosts your workflow.
Periodic travel to London HQ and regular team socials.
33 days of paid time off (PTO), including US federal holidays.
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.
We do not accept unsolicited CVs from recruitment agencies, will not be liable for any fees, and prohibit unauthorised use of our company name in recruitment activities.We’re building fast and that includes our benefits. More exciting additions are coming soon.If you are passionate about pushing the boundaries of what's possible in AI and thrive in a high-energy, fast-paced environment, we want to hear from you.
