Sr. RFIC PLL Design Engineer , Amazon Leo

Amazon • San Diego, CA

4d • Onsite

About The Position

Amazon Leo is an initiative to launch a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband connectivity to unserved and underserved communities around the world. As Senior RFIC PLL Design Engineer, you will engage with an experienced cross-disciplinary staff to conceive and design innovative product solutions. You will work closely with an internal inter-disciplinary team, and third party suppliers to drive key aspects of product definition, execution and optimization. You must be responsive, flexible and able to succeed within an open collaborative peer environment. As a member of the RFIC team, you will be responsible for the architectural definition, design, simulation, layout, and extracted simulation for RF and clock PLLs (including frac-N) as well as transmit and receive front-ends from data converters to LNAs and PAs. This position requires strong knowledge of PLL design, especially for mmWave circuits. Strong focus will be on creating power and cost optimized solutions for a given system performance.

Requirements

• Bachelor's degree in Electrical Engineering or a related field
• 7+ years of experience in mm-Wave/RFIC design, preferably in an advanced node
• Knowledge of PLL circuits and architectures, especially for mmWave designs
• Knowledge of current and upcoming RF standards in cellular (4G/5G NR), WiMAX, 802.11ad, microwave backhaul, or similar broadband wireless standards.
• U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

Nice To Haves

• Master's degree or Ph.D. degree in Electrical Engineering or related field
• Strong knowledge of Frac-N PLL architecture/design tradeoffs
• RF transceiver architecture / design for beamforming systems (including zero-IF transceivers, low-IF transceivers, polar transmitters, and RF/LO/Baseband phase shifting).
• Experience leading integrated RF transceiver chipsets containing LNAs, PAs, ADCs, DACs, baseband filters, mixers, etc.
• Millimeter-wave circuit design and layout in FinFET, SOI, BiCMOS, and Bulk CMOS technologies.
• Analog circuit design fundamentals, such as Opamps, precision biasing, and LDOs.
• Electromagnetics of passive devices and device physics of leading edge silicon and III-V devices.
• Mixed-signal design and verification techniques.
• Hands on experience with RF test equipment such as network analyzers, spectrum analyzers, oscilloscopes, and probe-stations.
• Strong written and verbal skills.

Responsibilities

• Collaborate with communications systems, digital design, and chip implementation teams to specify and implement transceivers and RFIC front-end models which will delight future Amazon LEO customers.
• Lead implementation of area/power-efficient RFIC chips with multiple transceiver chains with integrated PLLs from concept to production.
• Work closely with packaging/HW/EE/FW teams to ensure seamless system integration providing best value for LEO customers.
• Collaborate with the digital design team to define analog/digital boundary requirements for circuit calibration, clock generation, and timing.
• Explore architectures for mm-wave and RF circuits like VCOs, mixers, phase shifters, LNAs, PAs, LO distribution, frequency multipliers and dividers, and envelope/power detectors, and make detailed presentations on power/area/performance trade-offs.
• Design and simulate on-chip inductors, baluns, and power combiners in tools such as EMX or HFSS.
• Perform circuit layout, RLC extraction, and run extracted simulation across various corners to make sure designs are robust and can be taken to volume production.
• Specify bench and production test plans for your designs.

Benefits

• health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage)
• 401(k) matching
• paid time off
• parental leave
• sign-on payments
• restricted stock units (RSUs)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior