Principal Hardware Engineer: High Speed Mixed Signal Designer

Responsibilities

Design high level system architectures for instruments with particular focus on driving definition of analog and RF front end designs, including signal conditioning and amplification stages, DAC and ADC selection, power and clocking schemes, as well as control and monitoring circuitry.
Own the research, simulation, prototyping, evaluation, and design of high speed mixed-signal front ends used for driving high speed and high resolution analog signals used to interface with the lasers and actuators that control our quantum computers.
Own the PCB-level design (working closely with the PCB layout designer) of multi-gigabit transceiver interfaces (10+ Gbps) between FPGAs and data converters (stackup, via and connector transitions, routing topology) and validate signal quality and crosstalk with S-parameter-based channel analysis.
Experience designing, characterizing, and optimizing for low phase noise and spurious content and good linearity in high-speed data-converter designs, inclusive of clock PLL and distribution phase noise, power-supply and reference noise coupling, data converter optimization, and gain / signal conditioning stages and correlating that budget against measured performance.
Collaborate with quantum engineers and other groups to understand system needs, discuss solutions and define hardware design requirements.
Board-level circuit design, schematic capture, and PCB layout in Altium Designer of custom control system hardware.
Actively participate in the bring-up, verification, and testing of control system hardware systems, collaborating closely with FPGA, firmware, and software engineers.
Own technical relationships with contract electronics manufacturers and suppliers, driving Design for Manufacturing (DFM) strategies to support production and scaling operations.
As an expert on high speed mixed signal front end design, mentor other members of the team in hardware design to expand their expertise and 

Required Qualifications

BS or MS in Electrical Engineering, Computer Engineering, or a related technical field.
10+ years of relevant postgraduate professional experience in board-level analog and digital circuit design, preferably with Altium Designer.
Self-motivated, collaborative, and driven to work effectively in a fast-growing startup environment.
Ability to effectively communicate and collaborate with a diverse team of experimental physicists, hardware, and software engineers.
Experience in a full design cycle, from concept and schematic capture through to layout, fabrication, and initial board bring-up.
Working knowledge of PCB design best practices and a keen attention to detail.
Mixed signal design experience
Demonstrated proficiency with electronic test equipment (e.g., oscilloscopes, spectrum and logic analyzers, signal generators) for the bring-up and debug of prototype electronics assemblies.
Capable in scripting languages (e.g., Python) for basic data acquisition, instrument control, and automating hardware test and characterization.
Experience working on boards with complicated ICs (FPGAs, processors, etc) requiring several power supplies, high speed busses, and high speed memory interfaces.

Preferred Qualifications

Familiarity with RF design concepts and/or software defined radio
Experience with multi-gigabit serial transceiver lane design, evaluation, equalization
Experience with IBIS-AMI modeling and correlation for multi-gigabit serial interfaces
Experience designing high speed memory interfaces
Experience with high speed digital and analog I/O and connector/cable selection and characterization
Experience working in a Linux environment
Familiarity with the MicroTCA, PXIe, or similar pluggable instrument standards