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82 data annotator jobs at 29 companies in California

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Data Annotator
Los Angeles, California, United States
$60k-$80k/yr OnsiteFull Time
Horizon Surgical Systems
Horizon Surgical Systems: AI-driven robotic systems for ophthalmic microsurgery
Bachelor's degree required; strong attention to detail, English proficiency, experience with Linux/Windows, ability to review and organize complex surgical data, and communicate with contracted labelers.
Linux, Windows
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2mo
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Video Data Annotator - Contract
San Francisco, California, United States
$25/hr OnsitePart Time
Hooglee
Hooglee: AI-powered video generation and social networking platform.
Part-time on-site role in San Francisco; 10-week contract; $25/hour; strong English and attention to detail required.
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1mo
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Data Annotation Lead
Redwood City, California, United States
OnsiteFull Time
Sunday
Sunday: Developing autonomous robots to perform household chores.
Experience building and leading data annotation teams, strong written/verbal communication, stakeholder management, prioritization, intermediate ML understanding, and ability to create documentation and annotation processes.
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Data Scientist - Survey Design, Data Annotation, and Machine Learning Evaluation
Cupertino or San Francisco
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
2+ YOEBA or MS in Data Science/Statistics; 2+ years in survey design and human data annotation; Python proficiency; strong communication.
Python
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Data Labeling Associate
San Francisco Bay Area or New York
OnsiteFull Time
Welocalize
Welocalize: Provides translation, localization, and AI data training services globally.
Foundation in ML, data annotation, QA, NLP; English US data focus; strong analytical skills.
Command Line, Data Annotation Tools, Labeling Guidelines
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Data Annotation Analyst
San Francisco, California, United States
$71k-$89k/yr OnsiteFull Time
Atoms
Atoms: Building robotics and software to automate physical world industries.
Experience labeling or performing quality control for ML training data; familiarity with annotation platforms, CLI tools, spreadsheets/BI dashboards, and version control; strong communication and attention to detail.
Git
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Data Annotation Analyst
San Francisco, California, United States
$71k-$89k/yr OnsiteFull Time
Atoms
Atoms: Building specialized industrial robots and physical AI systems.
Experience labeling or quality-controlling ML training data, managing remote labelers, familiarity with annotation platforms, CLI tools preferred, spreadsheet/BI dashboards, and Git or ticketing tools.
command-line interface, annotation platforms, spreadsheet tools, BI dashboards, Git
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2mo
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Clinical Data Abstractor
San Francisco, California, United States
$80k-$100k/yr RemoteFull Time
Citizen Health
Citizen Health: AI-powered patient advocate and research platform for rare diseases.
2+ YOE2+ years clinical care in rare genetic disorders; licensed clinician (RN/NP/PA/Genetic Counselor); strong collaboration; HIPAA knowledge; data annotation experience.
HIPAA compliant software, Healthcare data annotation tools
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Data Labeling Analyst - Finnish Speakers
New York City or Seattle or Bellevue or Redmond or San Francisco or Sunnyvale or Burlingame or Manhattan
$26-$28/hr OnsiteFull Time
Welocalize
Welocalize: Provides AI training data and multilingual localization services.
1+ YOEFinnish language fluency; native-level Finnish; 1 year data labeling/annotation experience or Bachelor’s degree; strong attention to detail; ability to follow guidelines.
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1mo
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Senior Annotation and Data Pipeline Manager
San Carlos, California, United States
OnsiteFull Time
Genesis AI
Genesis AI: Building general-purpose robots with human-level physical intelligence.
4+ YOE4+ years in data or ML pipelines including leadership; strong Python (Pandas, NumPy, PyTorch) and SQL; experience scaling annotation/labeling operations; ML literacy and hands-on technical leadership.
Python, Pandas, NumPy, PyTorch, SQL
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2mo
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AI/ML Data Contributor
Los Angeles or United States
HybridContract, Full Time
Service Measure
Service Measure: Provides global field data collection and customer experience measurement.
Must be based in the U.S., strong attention to detail, basic computer skills, reliable internet and device, availability for variable task-based schedule; prior data annotation or QA experience is a plus.
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AI Data Expert - Spanish (US) - Remote
San Francisco or United States
RemoteContract
Lilt
Lilt: AI-powered platform for enterprise translation and content generation.
Native Spanish fluency, strong attention to detail, able to review and annotate textual and audio/video content, follow detailed guidelines, prior AI reviewer/annotator experience preferred.
SuperAnnotate
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Sr. Software Analyst, Data, Autonomy
Palo Alto, California, United States
$132k-$165k/yr OnsiteFull Time
Rivian
RivianNASDAQ: RIVN: Designs and manufactures electric vehicles and charging networks.
2+ YOEBS in technical field with 2+ yrs experience or 5+ yrs exp; 2+ yrs data annotation/ML labeling; Python/SQL; LiDAR/video/image data analysis; multitask; strong communication.
Python, SQL, Databases, Data Visualization
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2mo
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Project Perseus | Data Labeling Analyst - Czech Speakers (Speech & Voice AI)
New York City or Seattle or San Francisco or Sunnyvale or Burlingame or Bellevue or Redmond
$26-$28/hr OnsiteFull Time
Welocalize
Welocalize: Provides global translation, localization, and AI training data services.
1+ YOEData labeling/annotation, transcription, and quality-focused; 1-2 years experience; Czech language required; attention to detail; ability to follow guidelines.
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Data Annotation Lead
San Francisco, California, United States
OnsiteFull Time
Physical Intelligence
Physical Intelligence: Creating foundation models for general-purpose robot intelligence.
7+ YOE3+ Mgmt7+ years leading scaled data/annotation operations, 3+ years managing managers, experience scaling 100s→1,000s, building training/certification pipelines, integrating autolabeling/HITL workflows, and driving operational quality metrics.
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1mo
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Agentic Data Understanding
San Francisco or New York City
OnsiteFull Time
Bedrock Robotics
Bedrock Robotics: Automates heavy construction machinery with AI retrofit kits.
8+ YOE8+ years in ML/data engineering or applied AI with production annotation/labeling systems, strong Python skills, pipeline and model-inference experience, familiarity with 2D/3D annotation modalities, metrics and cross-functional collaboration.
Python, VLMs, LLMs, LiDAR, IMU, cameras
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2mo
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Data Annotation Specialist
Redwood City, California, United States
$32/hr OnsiteContract
Dyna Robotics
Dyna Robotics: Develops general-purpose robots powered by proprietary embodied AI models.
Associate’s or Bachelor’s degree (or equivalent); strong attention to detail; follow detailed instructions; work independently; clear written communication.
Video annotation tools, COCO format, YOLO format, MOT/KITTI knowledge, Pre-annotation/autolabeling tools
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2mo
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Language Engineer, Artificial General Intelligence - Data Services
Boston or Bellevue or Sunnyvale
OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
2+ YOEExperience in language annotation, scripting (Python, KornShell), multilingual data, and computational linguistics; 2+ years in language data processing; Masters or higher.
Python, KornShell, SQL, R, Matlab
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1mo
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Data Collection Operator
San Francisco or Irvine
$29/hr OnsiteFull Time
ALTEN
ALTENEuronext Paris: ATE: Provides engineering and technology consulting services to industrial clients.
Operate robotics platforms and VR teleoperation (Apple Vision Pro), collect motion-capture data, perform basic annotations and QC, run simple terminal commands, write daily reports; good dexterity, vision, and stamina required.
Apple Vision Pro, Terminal
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2w
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Senior AI Data Science Engineer
Sunnyvale, California, United States
$152k-$257k/yr OnsiteFull Time
Intuitive
IntuitiveNASDAQ: ISRG: Robotic-assisted systems for minimally invasive surgery.
3+ YOEMaster's (6+ yrs) or PhD (3+ yrs) in CS/Data Science/EE/Robotics or related; strong Python and SQL; experience building data pipelines for multi-modal surgical/robotics data; data quality and annotation workflow expertise.
Python, SQL, Spark, Airflow, MLFlow, DVC, Weights & Biases, Docker, Kubernetes
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