Senior Engineer - Data & Training Infrastructure San Francisco, CA, Cambridge, MA

Senior Member of Technical Staff:
Data & Training Infrastructure

Position Summary:

You’ll build and scale the infrastructure where data meets training—the systems that feed data efficiently into large-scale training and keep those runs fast, stable, and reproducible. As a senior IC you lead this workstream together with our world-class data team and are a force multiplier for the research teams that depend on it.

Core Responsibilities:

• Data Path: Design and scale the data-loading, sharing , and caching that feeds large training runs.
• Training Reliability:
  Design and implement training-infra efficiency and reliability—throughput, utilization, checkpointing, fault tolerance.
• Bottleneck Removal: Find and remove bottlenecks between the data platform and training.
• Observability: Build tooling that makes training performance and failures easy to understand.
• Technical Leadership: Set standards and mentor MTS engineers across data and training infra.

Required Qualifications:

• Systems / ML Infra: Strong background with experience supporting large-scale training.
• Distributed Training: Deep understanding of distributed-training performance and the data path that feeds it.
• Technical Judgment: The ability to lead a work stream and make high-leverage infrastructure decisions.
• Performance: A rigorous, measurement-driven approach to performance work.
• Leadership: Experience mentoring engineers and setting technical standards.

Preferred Qualifications:

• Experience with large multimodal or video training pipelines.
• Familiarity with accelerator utilization, high-performance I/O, or distributed storage.
• Contributions to training-infrastructure or performance tooling.

Walden Robotics offers a competitive total compensation program, including salary, annual cash bonus, company equity, company-subsidized insurance programs, 401(k) with company match, flexible PTO, daily lunch, and other benefits. The pay ranges noted on our posts are for salary only.

Walden Robotics is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations, and ordinances.

If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request to

Walden Robotics participates in E-Verify. If you receive an offer of employment from Walden, you will need to go through the E-Verify process of digital verification of your employment authorization documents as provided on the Form I-9. Participation in E-Verify does not limit your right to work and verification will only be completed after you become.