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103 annotator jobs at 29 companies in South San Francisco, CA

3w
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Croatian Speaker-Data Annotator
San Francisco or Seattle or New York City
$34/hr OnsiteFull Time
Welocalize
Welocalize: Provides AI training data and multilingual localization services.
1+ YOENative-level Croatian, strong written communication, 1 year data labeling/annotation experience or Bachelor's degree, authorized to work in the U.S.; ability to follow detailed guidelines for audio and language data.
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17h
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Annotation Specialist, Video (Contract)
San Francisco, California, United States
$25/hr OnsiteMultiple Commitments Available
Hooglee
Hooglee: AI-powered video generation and social networking platform.
Fluent English reading, writing, and speaking; meticulous attention to detail and consistency. Annotation, labeling, or quality assurance experience is helpful but not required.
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2w
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Language Lead - French (Contract)
San Francisco or London or Bangalore
$25-$35/hr RemoteContract, Full Time
Cartesia
Cartesia: Builds real-time generative voice and multimodal AI models.
Native-level French, linguistics background, experience with annotation/transcription or language QA, strong English writing, ability to manage QA, audits, and annotator feedback.
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2mo
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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
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2mo
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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.
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1w
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Annotation Operations Manager
Redwood City, California, United States
OnsiteFull Time
Dyna Robotics
Dyna Robotics: Develops general-purpose robots powered by proprietary embodied AI models.
3+ YOERequires 3+ years in operations, program, or team management; direct people management, hiring, performance and approval experience; operational metrics, reporting, vendor management, and annotation tooling fluency.
Encord, SQL
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2mo
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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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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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1mo
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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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3w
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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.
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3w
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Technical Program Manager, Human Data Annotation (Code)
Paris or Palo Alto or London
HybridFull Time
Mistral AI
Mistral AI: Developing frontier artificial intelligence models and enterprise AI solutions.
5+ YOE5+ years experience combining software engineering and technical program management; strong Python skills, project management, stakeholder communication, team leadership, and experience with data annotation operations.
Python, JavaScript, TypeScript, FastAPI, Django, React
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3mo
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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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3mo
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Senior ML Systems Engineer
Sunnyvale or United States
$171k-$261k/yr RemoteFull Time
General Motors
General MotorsNYSE: GM: Manufactures and sells automobiles and automotive parts globally.
6+ YOE6+ years of distributed platforms and full-stack development; Python, TypeScript, Go, React, GraphQL; cloud-based apps; ML/annotation tooling.
Python, TypeScript, Go, React, GraphQL, WebGL, SQL
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6d
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Italian Data Labeling Analyst(Speech & Voice)
New York City or Seattle or Bellevue or Redmond or San Francisco or Sunnyvale or Burlingame
$26-$28/hr OnsiteFull Time
Welocalize
Welocalize: Provides global translation, localization, and AI training data services.
1+ YOENative-level Croatian fluency, strong written communication, and one year of labeling, annotation, or content experience, or a related bachelor's degree. Requires accuracy and guideline adherence.
AI, speech technology
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2mo
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Portuguese (Portugal) Language Analyst - US-based
New York City or Seattle or Bellevue or Redmond or San Francisco or Sunnyvale or Burlingame or California or Austin or Los Angeles or Washington or Chicago or Boston
$26-$28/hr OnsiteFull Time
Welocalize
Welocalize: Provides global translation, localization, and AI training data services.
1+ YOENative-level Portuguese (Portugal), 1+ year labeling/annotation or related Bachelor's degree, strong written communication, attention to detail, US work authorization required.
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3w
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Machine Learning Data Engineer (DataOps), Materra
Mountain View, California, United States
$166k-$244k/yr OnsiteFull Time
X, The Moonshot Factory
X, The Moonshot FactoryNASDAQ: GOOGL: Develops early-stage technologies and experimental projects.
3+ YOE3+ years building scalable data pipelines, strong Python and SQL skills, experience with data validation, dataset versioning, and ML data lifecycle for annotation and training.
Python, Pandas, NumPy, SQL, BigQuery, Cloud Storage, Dataflow, Dataproc, Vertex AI Data Pipelines, Google Cloud Composer, Apache Airflow, Prefect, Dagster, Great Expectations, DVC, TFX, Data Validation
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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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1mo
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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
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1mo
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Senior Language Engineer
Redwood City, California, United States
$200k-$290k/yr OnsiteFull Time
Retell AI
Retell AI: Develops human-like AI voice agents for automated call centers.
2+ YOE2+ years in computational linguistics or language data processing, scripting for large-scale text/audio pipelines, managing annotation, native-level English, strong linguistic judgement.
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3w
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Applications Engineer
San Francisco, California, United States
OnsiteFull Time
Radical Numerics
Radical Numerics: Building general biological intelligence models for scientific discovery.
Experience building full-stack tools for genomics data (Python, TypeScript, React), familiarity with VCFs and variant annotation, strong communication and partner-facing skills, ability to ship prototypes quickly.
Python, TypeScript, React, VCF
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