Clockwork Systems, Inc.
Senior Software Engineer – Time Synchronization
Palo Alto, California · Senior
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Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
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The bottom of this range ($150,000) is below the Level I prevailing wage of $152,797. An H-1B cannot be filed below the prevailing wage, so an offer at the floor of this band could not be sponsored as posted.
Based on the DOL prevailing wage for this occupation and worksite, a base salary of $187,075 would place this position at wage Level II. That figure is within the posted range, and I'd like to target it. This role classifies under "Software Developers" for prevailing-wage purposes.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · San Jose-Sunnyvale-Santa Clara, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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About the role
- You will work at the intersection of distributed systems, networking, and systems engineering to ensure correctness, reliability, and performance of time coordination across clusters and services.
Responsibilities
- Design and implement core time synchronization algorithms and services
- Build globally scalable services that operate under tight latency and consistency constraints
- Optimize performance at the OS, kernel, and network levels where necessary
- Collaborate with infrastructure, platform, and product teams
- Lead technical direction and mentor engineers
- We are committed to building world-class teams by welcoming bright, passionate individuals from all backgrounds.
- We believe diversity drives innovation, and we grow stronger together.
Requirements
- 6+ years of experience in systems or distributed systems engineering
- Strong proficiency in C++ and Go
- Experience with time synchronization protocols (NTP, PTP) or related domains
- Familiarity with Linux systems programming and networking stacks
- Experience debugging low-level performance and correctness issues
Nice to have
- Experience with kernel development or eBPF
- Background in real-time systems or high-frequency trading infrastructure
- Knowledge of hardware clocks, NIC timestamping, or GPS-based timing
- Experience operating large-scale distributed systems in production
- Challenging projects.
- A friendly and inclusive workplace culture.
- Competitive compensation.
- Clockwork Systems is an equal opportunity employer.
Compensation
- For candidates hired at the posted level, the expected base salary range is $150,000 - $230,000.
- In addition to cash compensation, this role is eligible to participate in the company's equity program, which may include stock options granted in accordance with the company's equity plan and subject to approval and applicable vesting schedules.
Benefits
- Develop observability systems for clock health, skew detection, and anomaly analysis
- for this position will vary based on the skills and experience you bring, as well as internal equity considerations.
Company info
- About Clockwork Systems
- Clockwork.io - Software Driven Fabrics to increase GPU cluster utilization
- Clockwork Systems was founded by Stanford researchers and veteran systems engineers who share a vision for redefining the foundations of distributed computing.
- As AI workloads grow increasingly complex, traditional infrastructure struggles to meet the demands of performance, reliability, and precise coordination.
- Clockwork is pioneering a software-driven approach to AI fabrics by delivering cross-stack observability to catch and quickly resolve problems, workload fault tolerance to keep jobs running through failures, and performance acceleration that dynamically routes and paces traffic to avoid congestion.
- To learn more, visit www.clockwork.io.
- We are seeking a Senior Engineer to lead development of our Core ClockSync systems.
- What We're Looking For
This listing is sourced directly from Clockwork Systems, Inc.'s careers page and normalized into a canonical job model.