Principal Engineer, Infrastructure Hardware

About SiTime 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: www.sitime.com. 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. We value diverse experiences, perspectives, and career paths, and welcome candidates who are excited to contribute to our mission. 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 • English proficiency is required, including the ability to effectively communicate, collaborate, and perform job responsibilities in a professional business environment. Compensation: At SiTime, we believe great work deserves great rewards. We offer a comprehensive and highly competitive compensation package designed to attract top talent. In addition to base salary, this role is eligible for a quarterly bonus tied to the achievement of innovation goals—reflecting our commitment to recognizing meaningful impact. We also offer equity grants, providing a meaningful opportunity to share in the company’s future growth and success. Benefits offered: 401k plan, health and wellness that includes medical, dental, vision, life, parental leave, legal services, and time off plans. SiTime is an Equal Opportunity Employer. We treat each person fairly and we do not tolerate discrimination or harassment against anyone on the basis of any protected characteristics, including race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, pregnancy, political affiliation, protected veteran status, protected genetic information, or marital status or other characteristics protected by law. SiTime participates in the E-Verify program. Learn More about SiTime: Review the Get to Know SiTime section of our career page to explore our culture, values, and what makes us unique. • Innovation on Top – Philosophies of Innovation with Rajesh Vashist • Fabrication Knowledge – An Interview with Rajesh Vashist • SiTime Corporation – YouTube Pay Range $148,320—$203,940 USD