Senior Electrical Engineer (FPGA / High-Speed / Mixed-Signal)

Zealogics.com

  • San Jose CA, CA
  • 30+ days ago

    Highlights

    High-Speed Digital & SerDes Design•Design and integrate high-speed interfaces including:oDDR4/DDR memory subsystemsoPCIe Gen3/Gen4 interfacesoQSFP (10G/25G/40G/100G) linkso10G+ SerDes channels•Define routing constraints, stack-up, and impedance control•Ensure signal integrity, timing closure, and link stabilityPublic3. Mixed-Signal & Analog Front-End Design•Design and integrate:oHigh-speed ADC/DAC signal chainsoData Converter Architectures (DCA)oPrecision analog front-end (AFE) circuits•Develop circuits using low-noise OpAmps, filters, and gain stages•Optimize performance metrics such as SNR, ENOB, bandwidth, and jitter sensitivity4.

    Numbers & Facts

    LocationSan Jose CA, CA

    Description

    Key Responsibilities1. FPGA-Based System Architecture•Define FPGA-centric system architectures for high-throughput data processing platforms•Partition functionality across FPGA, ADC/DAC, and host interfaces•Collaborate with FPGA/FW teams on interface definition, timing, and performance2. High-Speed Digital & SerDes Design•Design and integrate high-speed interfaces including:oDDR4/DDR memory subsystemsoPCIe Gen3/Gen4 interfacesoQSFP (10G/25G/40G/100G) linkso10G+ SerDes channels•Define routing constraints, stack-up, and impedance control•Ensure signal integrity, timing closure, and link stabilityPublic3. Mixed-Signal & Analog Front-End Design•Design and integrate:oHigh-speed ADC/DAC signal chainsoData Converter Architectures (DCA)oPrecision analog front-end (AFE) circuits•Develop circuits using low-noise OpAmps, filters, and gain stages•Optimize performance metrics such as SNR, ENOB, bandwidth, and jitter sensitivity4. Power System Design•Design multi-rail DC/DC power systems for FPGA and high-speed circuits•Manage power sequencing, noise, ripple, and efficiency•Ensure power integrity for sensitive ADC and high-speed SerDes subsystems5. Hardware Design & PCB Implementation•Own schematic design and hardware architecture (Xpedition preferred)•Guide PCB layout for high-layer-count, high-speed boards•Lead design reviews focusing on SI/PI/EMI risks•Ensure manufacturability (DFM) and testability (DFT)6. System Bring-up & Debug•Lead board bring-up and system integration:oDDR trainingoPCIe and SerDes link-upoADC performance validation•Debug issues related to:oSignal integrityPublicoJitter and noiseoPower coupling and system interaction•Use lab tools such as oscilloscopes, TDR/VNA, and protocol analyzers7. Cross-Functional Collaboration•Work closely with FPGA, firmware, software, mechanical, and system engineering teams•Align electrical design with system-level performance requirements•Drive cross-domain trade-offs8. Technical Leadership•Lead architectural decisions and technical reviews•Mentor junior engineers in high-speed and mixed-signal design•Drive structured problem-solving across complex systemsRequired Qualifications•Bachelor’s or Master’s degree in Electrical Engineering or related field•8–12+ years of experience in high-speed, FPGA, or mixed-signal systemsCore Technical Requirements•FPGA-based system design experience•DDR4 memory subsystem design experience•PCIe / SerDes / high-speed link experience•ADC and analog front-end design experience•DC/DC power system design experienceFundamentals•Strong understanding of:PublicoSignal Integrity (SI)oPower Integrity (PI)oHigh-speed timing and jitter analysisPreferred Qualifications•Hands-on experience with FPGA platforms (Intel / Xilinx)•Experience with:oHigh-speed data convertersoOptical interfaces / QSFP modulesoJESD204 or similar high-speed data links•Strong PCB design experience with high-speed constraints•Experience with tools such as:oXpedition (Mentor / Siemens)oSI/PI analysis toolsStrong Plus•Experience in semiconductor equipment, imaging, or instrumentation systems•Experience with multi-board or modular systems•Understanding of signal-power-thermal coupling effects•Full product lifecycle experience (R&D NPI production)Soft Skills•Strong ownership mindset and accountability•Ability to solve complex multi-domain engineering problems•Excellent communication and cross-functional collaboration skills

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