Principal Engineer, Infrastructure Hardware

About Si Time

SiTime is the Precision Timing company.

Timing is the heartbeat of all electronics, ensuring performance, resilience and scalability. For decades, quartz devices, non-silicon technology, have kept systems in sync, but they struggle in harsher, more demanding environments. MEMS-based Precision Timing delivers greater accuracy, smaller size and resilience. Today, MEMS timing powers over 400 applications, including high-growth ones in AI datacenters, automated driving, industrial and humanoid robots, wearables and IoT.

Our semiconductor MEMS programmable solutions offer a rich feature set that enables customers to differentiate their products with higher performance, smaller size, lower power, and better reliability. With more than 4 billion devices shipped, SiTime is changing the timing industry. For more information, visit:

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
System Architecture & Design Ownership

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

Manufacturing, Prototype Bring‑Up, Debug & Validation

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

Platform Scale & Technical Influence

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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