Principal Engineer, Infrastructure Hardware

Job Summary  We are seeking a hands-on Principal Infrastructure Hardware Engineer to architect, design, and deliver system platforms supporting characterization, validation, ATE, and high-volume manufacturing of SiTime products. This is a technical leadership role with no direct reports, ideal for a senior designer who excels at deep technical ownership and cross-functional influence.

Key Responsibilities   Own end-to-end system hardware design from architecture through production release
Define system architecture, schematics, PCB stack-ups, and layout constraints
Drive component selection and vendor strategy balancing performance, cost, quality, and supply
Lead SI/PI, PDN design and advanced simulations for low-jitter, high-speed interfaces
Drive DFM, DFA, and DFT reviews with fabrication and assembly partners
Lead hands-on prototype bring-up, debug, and characterization
Perform system-level failure analysis and root-cause debug
Utilize high-end lab equipment including oscilloscopes and phase-noise analyzers
Develop modular, reusable platforms supporting multiple product lines
Act as a technical mentor and design reviewer across hardware teams
Clearly communicate technical status, risks, and trade-offs to stakeholders

Required Qualifications   MS in Electrical Engineering or equivalent experience
7+ years of hands-on experience designing complex system hardware for high-volume products
Proven delivery of hardware from concept through production
Deep expertise in board, package, socket, and manufacturing technologies
Strong SI/PI, high-speed digital, and mixed-signal design experience
Proficiency with OrCAD, Allegro, ADS, HFSS, or equivalent tools
Experience working with ODM/OEM partners and external compliance labs

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