Zealogics LLC→
Senior Electrical Engineer (FPGA / High-Speed / Mixed-Signal)
ExperiencedOn-siteContract
Location
San Jose, CA
Salary
Not listed
Experience
Not specified
Posted
Today
Skills
fpga-based system designddr4 memory subsystem designpcie interface designserdes interface designadc and analog front-end designdc/dc power system designsignal integrity (si)power integrity (pi)high-speed timing analysishigh-speed jitter analysisschematic capturepcb designownership mindsetaccountabilitycommunicationcross-functional collaborationproblem solvingintel fpga platformsxilinx fpga platformshigh-speed data convertersoptical interfacesqsfp modulesjesd204 high-speed data linksxpeditionsiemenssi/pi analysis toolsmulti-board systemssignal-power-thermal coupling
Job Description
Key Responsibilities
- 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 performance
- High-Speed Digital & SerDes Design • Design and integrate high-speed interfaces including: o DDR4/DDR memory subsystems o PCIe Gen3/Gen4 interfaces o QSFP (10G/25G/40G/100G) links o 10G+ SerDes channels • Define routing constraints, stack-up, and impedance control • Ensure signal integrity, timing closure, and link stability Public
- Mixed-Signal & Analog Front-End Design • Design and integrate: o High-speed ADC/DAC signal chains o Data Converter Architectures (DCA) o Precision 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 sensitivity
- 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 subsystems
- 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)
- System Bring-up & Debug • Lead board bring-up and system integration: o DDR training o PCIe and SerDes link-up o ADC performance validation • Debug issues related to: o Signal integrity Public o Jitter and noise o Power coupling and system interaction • Use lab tools such as oscilloscopes, TDR/VNA, and protocol analyzers
- 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-offs
- Technical Leadership • Lead architectural decisions and technical reviews • Mentor junior engineers in high-speed and mixed-signal design • Drive structured problem-solving across complex systems Required 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 systems Core 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 experience Fundamentals • Strong understanding of: Public o Signal Integrity (SI) o Power Integrity (PI) o High-speed timing and jitter analysis Preferred Qualifications • Hands-on experience with FPGA platforms (Intel / Xilinx) • Experience with: o High-speed data converters o Optical interfaces / QSFP modules o JESD204 or similar high-speed data links • Strong PCB design experience with high-speed constraints • Experience with tools such as: o Xpedition (Mentor / Siemens) o SI/PI analysis tools Strong 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