91 annotator jobs at 34 companies in California

1w
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Annotator
San Francisco, California, United States
$25-$30/hr RemoteContract
LegalOn
LegalOn: AI-powered software for contract review and legal workflows.
Licensed attorney in good standing, experience with commercial/corporate/transactional matters, strong analytical and written communication, legal judgment in ambiguous situations, interest in legal AI.
3w
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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
16h
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Turkish Speaker-Data Annotator
New York City or Seattle or Bellevue or Redmond or San Francisco or Sunnyvale or Burlingame or Austin or Los Angeles or Washington or Chicago or Boston
$34/hr OnsiteFull Time
Welocalize
Welocalize: Provides AI training data and multilingual localization services.
1+ YOEMust be authorized to work in the U.S., native Turkish proficiency, B2+ English, Bachelor\u0002s degree required, 1+ year writing experience, evaluate AI outputs and follow guidelines onsite.
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.
1mo
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Technical Program Manager, Data Annotation
Redwood City, California, United States
OnsiteFull Time
Sunday
Sunday: Developing autonomous robots to perform household chores.
Design and roll out data annotation tasks, manage annotation projects, create documentation, annotate data as needed, coordinate with ML/engineering/data teams, and apply intermediate ML understanding.
3mo
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Sr. Software Analyst, Annotation Strategy, 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 + 2+ years in data annotation/ML; 2+ years in 2D/3D annotation; QA/QC; databases/visualization; LiDAR/video/image data; multi-project delivery; strong communication; mentoring.
Python, SQL, Tableau, LiDAR data
1mo
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AI Expert - Armenian - Remote
Yerevan or San Francisco
RemoteContract
Lilt
Lilt: AI-powered platform for enterprise translation and content generation.
Native Armenian fluency and strong English, experience as an AI reviewer/annotator preferred, ability to assess text/audio/video, follow detailed guidelines, and produce accurate annotations.
SuperAnnotate
1mo
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Creative Producer - Special Projects
Cupertino, California, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Direct on-camera and voice talent for data capture, create annotation guidelines and taxonomies, act as lead annotator to ensure ML data quality; strong communication and production experience implied.
1w
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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
1w
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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
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
12h
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视频数据标注 & 评测专家 / 负责人
San Francisco, California, United States
RemoteFull Time
Embedding VC: Venture capital firm backing early-stage generative AI startups.
3+ years in video/image/multimodal annotation or evaluation; hands-on experience designing annotation tasks, QC (gold set, sampling, IAA, reviewer calibration), and collaborating with algorithm teams for badcase feedback; strong process and communication skills.
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
4w
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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.
3w
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Voice Recording Annotation and Transcription for Spanish (US)
United States or California or Florida or New York or Montana or New Jersey or Texas or Arizona or Nevada or Illinois or Virginia or Georgia or Utah
$17-$18/hr RemoteContract
Lionbridge
Lionbridge: Provides translation, localization, and AI training data services.
Native-level Spanish (US) and fluent English, prior transcription/annotation/recording experience, attention to detail, quiet recording environment, ability to record at 8 kHz; flexible, remote contractor work.
3mo
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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
3mo
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Project Perseus | Data Quality Analyst - German Speakers (Human-in-the-Loop AI)
New York City or Seattle or Bellevue or Redmond or San Francisco or Sunnyvale or Burlingame
$38/hr OnsiteFull Time
Welocalize
Welocalize: Provides global translation, localization, and AI training data services.
2+ YOE2-4 years in data annotation/QA; native-level German; English B2; bachelor's degree; onsite in US; no visa sponsorship.
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
1mo
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Pathologists (Freelance - Remote) - Long Beach, US
Long Beach, California, United States
$200/hr RemoteContract
Prolific
Prolific: Platform connecting researchers and AI developers with verified participants.
Verified pathologist with experience interpreting medical images, ability to annotate and review AI outputs, reliable internet and computer, PayPal account, and completion of a paid skills assessment.
Prolific, PayPal
2w
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Policy & Quality Specialist- ML Perception Data
Mountain View, California, United States
$152k-$160k/yr OnsiteFull Time
Waymo
Waymo: Autonomous driving technology for ride-hailing and logistics.
4+ YOE4+ years in data analysis, operations, or program management with focus on ML data annotation, taxonomy design, or human-in-the-loop workflows; strong analytical and project management skills.
Python, SQL