Analog Mixed Signal Design Engineer

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.

Requirements

• 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.

Benefits

• Competitive stock options
• Work from our office in The Domain, right in buzzing Austin with parking available for easy access
• Financial and operational relocation support (US and abroad)
• Visa sponsorship
• Health insurance stipend of $800/month
• 401(k) retirement savings plan
• 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
• Periodic travel to London HQ and regular team socials
• 33 days of paid time off (PTO), including US federal holidays