Flux Computing
11-50 employees
Cloud Computing
High Performance Computing
Artificial Intelligence
Software Development
About Flux Computing
Flux Computing is a technology company specializing in cloud-based high performance computing (HPC) solutions. Their platform enables enterprises to access and manage HPC resources on-demand, optimizing compute workloads for AI, machine learning, and scientific simulations. Founded in 2017, Flux Computing aims to democratize access to powerful computing infrastructure by simplifying the deployment and management of HPC in the cloud. The company serves industries such as aerospace, automotive, and life sciences, helping organizations accelerate innovation through scalable and cost-effective computing solutions.
3 months ago
Analog Mixed Signal Design Engineer
San Francisco, California - Office
Full-time
Mid Level
Analog Mixed Signal Design Engineer
📋
Description
- 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 interface with optical compute fabric.
- Success requires mastery of low‑jitter sampling circuits, broadband front ends, and calibration techniques delivering outstanding ENOB and power efficiency.
- Responsibilities include defining converter architectures, designing high-speed building blocks, modeling and simulation, collaborating on packaging and I/O design, leading silicon bring-up, mentoring engineers, and staying updated on latest techniques.
- The role demands 7+ years of CMOS data‑converter design experience, deep knowledge of high-speed analog design, proficiency with industry EDA tools, and a strong academic background in electrical engineering.
- The position is based in San Francisco, California, and offers a salary range of $194,000 to $270,000 per year, along with stock options, relocation support, health insurance stipend, 401(k), PTO, and other benefits.
🎯
Requirements
- 7 + years of production CMOS data‑converter design, with at least two tape‑outs running ≥ 20 GHz analog bandwidth.
- Deep knowledge of track‑and‑hold linearity, aperture‑jitter minimisation, current‑steering DAC glitch energy reduction, capacitor and device matching, and metastability‑hard comparators.
- Proficiency with industry EDA flows: Cadence Virtuoso, SpectreRF / AFS RF, Verilog‑A/AMS, EMX / HFSS for package + on‑chip inductor modelling, and mixed‑signal verification.
- Demonstrated ability to achieve < 100 fs rms aperture jitter, < 0.5 LSB DNL/INL (post‑calibration), and low‑ppm clock‑to‑data skew in silicon.
- Experience incorporating digital calibration engines (DSP or µ‑controller‑driven) for offset, gain, timing and element‑mismatch correction.
- Solid grasp of supply‑noise coupling, substrate isolation, ESD, latch‑up, and advanced‑node layout techniques (double patterning, EUV constraints, local interconnect).
- Strong lab skills: high‑speed AWG/BERT operation, FFT‑based dynamic testing, de‑embedding, and scripting (Python / MATLAB) for data reduction.
- Bachelor’s degree in Electrical Engineering or related field (Master’s / PhD preferred).
- Excellent communication, cross‑disciplinary collaboration, and a demonstrated ability to execute quickly in innovation‑driven environments.
🏖️
Benefits
- Competitive stock options, you’re not just part of the journey, you will own a piece of it.
- Live within 45 minutes of the office? Perfect. Live within 20 minutes? We’ll add an extra location bonus 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 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 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.