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55 data annotator jobs at 14 companies in Vacaville, CA

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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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3mo
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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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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
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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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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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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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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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3w
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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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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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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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2mo
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Product Management, Human Data Platform
San Francisco or New York City
$305k-$385k/yr HybridFull Time
Anthropic
Anthropic: Developing safe and reliable artificial intelligence systems.
Product management experience building data collection/annotation tooling for research or ML contexts, strong technical judgment, cross-functional collaboration, and ability to define outcome-based KPIs; Bachelor's degree or equivalent.
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Lead, Product Content Engineering
Menlo Park or New York or San Francisco
$193k-$269k/yr HybridFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
6+ YOE6+ years in content relevance; 1+ year GenAI; data annotation; independent work; cross-functional collaboration; industry trends; cross-functional project leadership; multilingual content experience.
Tableau, GenAI, prompt engineering
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1w
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Program Manager, Human Data Operations (San Francisco)
San Francisco, California, United States
$120k-$150k/yr OnsiteFull Time
mpathic: AI platform analyzing and enhancing clinical and corporate communication.
5+ YOE5+ years program management or operations experience managing large-scale human-data, annotation, evaluation, or expert-driven workflows; experience with distributed teams and customer-facing programs; strong communication and operational rigor.
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4w
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Insurance SME - Policy & Claims Labeling (Contract)
San Francisco or United States
RemoteContract, Part Time
Brain Co.
Brain Co.: Builds AI software platforms for governments and large enterprises.
3+ YOEUSA-based insurance professional with 3+ years (5+ preferred) in excess & specialty lines; experience in underwriting and claims, strong written communication, ability to annotate insurance documents and meet throughput/accuracy targets.
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3w
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Strategic Project Lead
San Francisco, California, United States
$150k-$200k/yr HybridFull Time
Contra
Contra: Professional network and marketplace for independent creative talent.
3+ YOE3+ years designing studies and running evaluations; experience with data labeling/annotation and human-in-the-loop systems; track record managing concurrent projects; strong analysis and presentation skills; must be based in San Francisco.
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4w
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Project Manager
San Mateo or San Francisco
HybridFull Time
XDOF
XDOF: Data infrastructure and collection systems for general-purpose robot training.
2+ YOE2+ years project management experience (2–5 years preferred), strong cross-functional coordination, ability to design data collection/annotation solutions, fluent English, comfortable with international travel and overseas assignments.
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2mo
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Chemistry - Graduates - AI Training - Sacramento, US
Sacramento or United States
$60/hr RemoteContract
Prolific
Prolific: Platform connecting researchers and AI developers with verified participants.
BS/MS/PhD in chemistry or related physical science, laboratory/industrial/pharma/academic experience, deep chemistry knowledge, familiarity with safety/regulatory standards (SDS, GHS, EPA/REACH/FDA), ability to evaluate and annotate chemical data; PayPal account required.
SMILES, NMR, IR, Mass Spec, PayPal, IUPAC, SDS, GHS, EPA, REACH, FDA
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