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Senior / Staff AI Research Engineer, Data Infrastructure

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Before you apply
Salary$185k – $325k
LocationMilpitas, CA, Milpitas, CA
Work modeon-site
Typefull-time
SeniorityLead
Experience5+ yrs
DepartmentAI
EquityIncluded
Company size51–200 people
PostedDec 11, 2025 · 11mo ago
Verified live1d ago
May no longer be actively hiring
Posted by the company on Dec 11, 202569% of this company's open roles have been listed for 90+ days
How we check a job is still live
At a glanceSummarised by Seekless from the posting.
Bachelor's or Master's degree in Computer Science, Robotics, or related field
5+ years of experience
Strong proficiency in Python
Experience building production-grade data pipelines and ETL systems
Hands-on experience with large-scale dataset management, including versioning, deduplication, quality filtering, and distributed storage (e.g., S3, GCS, HDF5, WebDataset, Zarr)
Experience building or working with post-training infrastructure — SFT pipelines, reward modeling, or RL training loops (e.g., PPO, DPO, rejection sampling)
Familiarity with deep learning frameworks (PyTorch, JAX) and ML training workflows
Experience with robotics data collection hardware — teleoperation devices, UMI, GELLO, or similar
Familiarity with robot learning pipelines: imitation learning, behavior cloning, or VLA/VLM fine-tuning workflows
Experience building evaluation or experiment tracking infrastructure (e.g., Weights & Biases, MLflow, custom rollout loggers)
Proven ability to design annotation tooling or human-in-the-loop labeling systems for structured or multimodal data
Requires 5 days/week in-office collaboration with the teams
Skills
Python
PyTorch
JAX
S3
GCS
HDF5
WebDataset
Zarr
Weights & Biases
MLflow
Benefits
Health insurance
Dental insurance
Vision insurance
401(k)
Visa sponsorship
Green card support
Why RoboForce
RoboForce is an AI robotics company developing Physical AI–powered Robo-Labor for dull, dirty, and dangerous work. The company’s robots are engineered for demanding industrial environments, with a focus on real-world deployment and scalability.
About the role
We are looking for a Senior / Staff AI Research Engineer, Data Infrastructure to build the data and learning engine behind RoboForce’s Physical AI stack. In this role, you will own the full pipeline — from raw teleoperation and UMI device data collection through curation, annotation, and storage, to post-training infrastructure that scores demonstrations, identifies failure patterns, and closes the loop back into model retraining.
Responsibilities
•
Design and maintain end-to-end data collection pipelines ingesting multimodal demonstration data from teleoperation devices and UMI hardware, including synchronization, versioning, and distributed storage at scale.
•
Build annotation tooling and data curation workflows — quality filtering, deduplication, episode scoring, and domain reweighting — to produce high-quality training datasets for robot policy learning.
•
Develop post-SFT reinforcement learning infrastructure: implement reward scoring on demonstrations, mine and categorize failure patterns, and feed curated failure data back into the retraining loop.
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Build evaluation and test infrastructure to log policy rollouts on-robot, capture structured results, and surface actionable diagnostics for the research team.
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Collaborate with ML researchers to define data schemas, episode formats, and pipeline interfaces that support rapid iteration on VLA and manipulation policy training.
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Architect scalable storage and retrieval systems for heterogeneous robot data (vision, proprioception, action, language) across both cloud and on-prem environments.
Requirements
•
Bachelor’s or Master’s degree in Computer Science, Robotics, or related field with 5+ years of experience.
•
Strong proficiency in Python and experience building production-grade data pipelines and ETL systems.
•
Hands-on experience with large-scale dataset management, including versioning, deduplication, quality filtering, and distributed storage (e.g., S3, GCS, HDF5, WebDataset, Zarr).
•
Experience building or working with post-training infrastructure — SFT pipelines, reward modeling, or RL training loops (e.g., PPO, DPO, rejection sampling).
•
Familiarity with deep learning frameworks (PyTorch, JAX) and ML training workflows sufficient to collaborate tightly with research teams.
•
Requires 5 days/week in-office collaboration with the teams.
Bonus Qualifications
•
Experience with robotics data collection hardware — teleoperation devices, UMI, GELLO, or similar — and the synchronization and preprocessing challenges they introduce.
•
Familiarity with robot learning pipelines: imitation learning, behavior cloning, or VLA/VLM fine-tuning workflows.
•
Experience building evaluation or experiment tracking infrastructure (e.g., Weights & Biases, MLflow, custom rollout loggers).
•
Proven ability to design annotation tooling or human-in-the-loop labeling systems for structured or multimodal data.
Benefits
•
Competitive stock options/equity programs.
•
Health, dental, and vision insurance, 401(k) plan.
•
Visa sponsorship and green card support for qualified candidates.
•
Lunches and dinners, a fully stocked kitchen, and regular team-building events.
Compensation: Salary $185,000–$325,000 USD + Bonus + Equity
Legal
The base salary range above represents the expected compensation for this full-time U.S. position. Final compensation will be determined based on role scope, level, location, job-related skills, experience, and relevant education or training, and may fall outside the listed range in exceptional cases.