Analog Design Engineer - High Speed ADC/DAC
Analog Design Engineer - High Speed ADC/DAC

Analog Design Engineer - High Speed ADC/DAC

London Full-Time 72000 - 108000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and produce ultra-high-speed analog circuits for cutting-edge AI technology.
  • Company: Join Flux Computing, a leader in optical processors for AI model training and inference.
  • Benefits: Enjoy competitive salary, remote work options, and exciting corporate perks.
  • Why this job: Be part of a dynamic team pushing the boundaries of AI innovation in a fast-paced environment.
  • Qualifications: 7+ years in CMOS data-converter design; strong electrical engineering background required.
  • Other info: Frequent travel between Austin and London offices; opportunities for mentorship and collaboration.

The predicted salary is between 72000 - 108000 ÂŁ per year.

Analog Design Engineer – High Speed ADC/DAC

Join to apply for the Analog Design Engineer – High Speed ADC/DAC role at Flux Computing

Analog Design Engineer – High Speed ADC/DAC

1 week ago Be among the first 25 applicants

Join to apply for the Analog Design Engineer – High Speed ADC/DAC role at Flux Computing

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.
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 strong background in electrical engineering and semiconductor physics, along with a passion for developing reliable, high-performance analogue circuits that drive breakthrough AI hardware.
Responsibilities

  • Define converter architectures that will deliver on the target of Analog bandwidth > 20 GHz.
  • Design critical high‑speed building blocks: bootstrapped or switch‑linearised T/H, low‑skew clock trees (< 50 fs rms aperture jitter), broadband input buffers, thermometer and binary‑weighted current cells, dynamic element matching (DEM) and background calibration loops.

  • Model and close performance using transistor‑level and behavioural co‑simulation (SpectreRF / AFS RF + Verilog‑A/AMS), then drive post‑layout extraction, EM/IR and thermal analysis to achieve first‑silicon success.
  • Collaborate with packaging, SerDes and PLL teams to co‑design I/O impedance, ESD, supply isolation and on‑interposer routing so converters integrate cleanly into multi‑lane fabrics.
  • Lead silicon bring‑up: on‑wafer static and dynamic tests, high‑speed digitiser / AWG measurements, DNL/INL, static‑power and jitter transfer characterisation; oversee production test pattern generation and built‑in self‑test (BIST) hooks.
  • Mentor junior engineers, conduct rigorous design and layout reviews, and publish internal app‑notes to disseminate best practices for GHz‑class data‑converter design.
  • Track and inject into the team the latest advances in time‑interleaving calibration, background mismatch correction, supply‑noise tolerant reference generation and layout techniques.
  • Skills & Experience

  • 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.
  • Frequent travel is expected between our Austin and London offices.
    We’re building fast and that includes our benefits. More exciting additions are coming soon for the Flux crew.
    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. Apply now to join Flux and be a key player in shaping the future of computing.

    Seniority level

    • Seniority level

      Mid-Senior level

    Employment type

    • Employment type

      Full-time

    Job function

    • Job function

      Engineering and Information Technology

    • Industries

      Semiconductor Manufacturing

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    Analog Design Engineer - High Speed ADC/DAC employer: PageBolt WordPress

    At Flux Computing, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration. Our Austin location provides a vibrant environment for professional growth, with opportunities to mentor junior engineers and engage in cutting-edge projects that push the boundaries of AI technology. With competitive benefits and a commitment to employee development, joining our team means becoming part of a forward-thinking company dedicated to shaping the future of computing.
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    PageBolt WordPress Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land Analog Design Engineer - High Speed ADC/DAC

    ✨Tip Number 1

    Familiarise yourself with the latest advancements in high-speed ADC/DAC design. Being able to discuss recent innovations in low-jitter sampling circuits and calibration techniques during your interview will demonstrate your passion and expertise in the field.

    ✨Tip Number 2

    Network with professionals in the semiconductor industry, especially those who have experience with CMOS data-converters. Engaging in discussions or attending relevant conferences can provide insights and connections that may help you stand out as a candidate.

    ✨Tip Number 3

    Prepare to showcase your lab skills by discussing specific projects where you've successfully implemented high-speed testing techniques. Highlighting your hands-on experience with AWG/BERT operation and dynamic testing will set you apart from other candidates.

    ✨Tip Number 4

    Research Flux Computing's current projects and technologies. Understanding their focus on optical processors and AI models will allow you to tailor your conversation during interviews, showing that you're genuinely interested in contributing to their mission.

    We think you need these skills to ace Analog Design Engineer - High Speed ADC/DAC

    Analog Circuit Design
    High-Speed Data Converter Design
    Low-Jitter Sampling Circuits
    Broadband Front Ends
    Calibration Techniques
    Transistor-Level Modelling
    Behavioural Co-Simulation
    Post-Layout Extraction
    Electromagnetic/IR Analysis
    Thermal Analysis
    Silicon Bring-Up
    Dynamic Testing
    Data Reduction Scripting (Python/MATLAB)
    Cross-Disciplinary Collaboration
    Mentoring and Leadership Skills
    Knowledge of EDA Tools (Cadence Virtuoso, SpectreRF)
    Understanding of Supply-Noise Coupling
    Advanced-Node Layout Techniques

    Some tips for your application 🫡

    Tailor Your CV: Make sure your CV highlights relevant experience in analog design, particularly with high-speed ADCs and DACs. Emphasise your mastery of low-jitter sampling circuits and any specific projects that demonstrate your skills in this area.

    Craft a Compelling Cover Letter: In your cover letter, express your passion for developing high-performance analogue circuits and how your background aligns with the role at Flux Computing. Mention specific achievements that showcase your expertise in CMOS data-converter design.

    Showcase Technical Skills: Clearly outline your proficiency with industry-standard EDA tools like Cadence Virtuoso and SpectreRF. Include any relevant projects where you achieved significant results, such as minimising aperture jitter or improving DNL/INL.

    Highlight Collaboration Experience: Since the role involves collaboration with various teams, mention any past experiences where you successfully worked with cross-disciplinary teams. This could include packaging, SerDes, or PLL teams, showcasing your ability to communicate effectively and drive projects forward.

    How to prepare for a job interview at PageBolt WordPress

    ✨Showcase Your Technical Mastery

    Be prepared to discuss your experience with high-speed analog design, particularly focusing on CMOS ADCs and DACs. Highlight specific projects where you achieved low-jitter sampling circuits or improved power efficiency, as this will resonate well with the interviewers.

    ✨Demonstrate Problem-Solving Skills

    Expect technical questions that assess your ability to tackle complex design challenges. Prepare examples of how you've approached issues like aperture jitter minimisation or current-steering DAC glitch energy reduction in past projects.

    ✨Familiarise Yourself with EDA Tools

    Since proficiency with industry EDA flows is crucial, brush up on your knowledge of tools like Cadence Virtuoso and SpectreRF. Be ready to discuss how you've used these tools in your previous roles to model and simulate designs effectively.

    ✨Emphasise Collaboration and Mentorship

    Flux Computing values teamwork and mentorship. Share experiences where you've collaborated with cross-disciplinary teams or mentored junior engineers, showcasing your ability to communicate complex concepts clearly and effectively.

    Analog Design Engineer - High Speed ADC/DAC
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    • Analog Design Engineer - High Speed ADC/DAC

      London
      Full-Time
      72000 - 108000 ÂŁ / year (est.)

      Application deadline: 2027-09-01

    • P

      PageBolt WordPress

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