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Ai Annotation Jobs in California (NOW HIRING)

Perform AI/ML-related tasks such as data labeling, annotation, and content evaluation * Participate in remote assignments or attend on-site sessions when required * Follow project guidelines and ...

Perform AI/ML-related tasks such as data labeling, annotation, and content evaluation * Participate in remote assignments or attend on-site sessions when required * Follow project guidelines and ...

Perform AI/ML-related tasks such as data labeling, annotation, and content evaluation * Participate in remote assignments or attend on-site sessions when required * Follow project guidelines and ...

Perform AI/ML-related tasks such as data labeling, annotation, and content evaluation * Participate in remote assignments or attend on-site sessions when required * Follow project guidelines and ...

Perform AI/ML-related tasks such as data labeling, annotation, and content evaluation * Participate in remote assignments or attend on-site sessions when required * Follow project guidelines and ...

Linguist II (LLM/AI)

Sunnyvale, CA · On-site

$36 - $40.20/hr

Linguist II (LLM/AI) Location: Sunnyvale, CA; New York, NY; Burlingame, WA; or Redmond, WA (Onsite ... Develop and maintain annotation schemas and guidelines for LLM training data, including instruction ...

Perform AI/ML-related tasks such as data labeling, annotation, and content evaluation * Participate in remote assignments or attend on-site sessions when required * Follow project guidelines and ...

AI Data Strategist

Redwood City, CA · On-site

$148K - $192K/yr

The Role We are hiring an AI Data Strategist to define the data requirements that drive model ... Exposure to annotation tooling such as Labelbox, Scale, CVAT, Encord, or Voxel51.

AI Data Operations Lead

Milpitas, CA · On-site

$145K - $205K/yr

Recruit, develop, and retain a 20-50 person team across data collection, annotation, and ... Partner with AI researchers to organize evaluation resources, execute testing plans, and deliver ...

AI Data Operations Lead

Milpitas, CA · On-site

$145K - $205K/yr

Recruit, develop, and retain a 20-50 person team across data collection, annotation, and ... Partner with AI researchers to organize evaluation resources, execute testing plans, and deliver ...

Showing results 41-60

Ai Annotation information

What is an AI annotation?

An AI Annotation job involves labeling, tagging, or annotating data, such as images, text, or audio, to train machine learning models. Annotators help improve AI accuracy by providing high-quality, structured data that algorithms use to learn patterns. Tasks may include identifying objects in images, transcribing speech, or classifying text-based content. This job is essential for developing AI applications like self-driving cars, chatbots, and image recognition systems.

What does an AI annotation specialist do?

As an AI Annotation specialist, your typical day will involve accurately labeling, categorizing, or tagging large volumes of images, text, audio, or video data to train AI models according to project guidelines. You may work independently or as part of a team, using specialized annotation platforms and regularly reviewing your work to ensure quality and consistency. Collaboration with data scientists or project managers may be required to clarify ambiguous cases or update labeling criteria. You can expect periodic feedback and performance reviews to help refine your skills and ensure the data meets the project’s standards, making attention to detail and adaptability essential for success.

What are the key skills and qualifications needed to thrive in the AI annotation position?

To thrive as an AI Annotation professional, you need keen attention to detail, strong analytical skills, and a basic understanding of machine learning concepts, often supported by a high school diploma or relevant technical training. Familiarity with data labeling tools, annotation platforms such as Labelbox or Supervisely, and basic spreadsheet or database management is commonly required. Strong communication, time management, and the ability to maintain focus during repetitive tasks are standout soft skills. These abilities are crucial for producing high-quality, consistent data that supports the effective development and accuracy of AI models.

What are the most commonly searched types of Ai Annotation jobs in California? The most popular types of Ai Annotation jobs in California are:
What are popular job titles related to Ai Annotation jobs in California? For Ai Annotation jobs in California, the most frequently searched job titles are:
What job categories do people searching Ai Annotation jobs in California look for? The top searched job categories for Ai Annotation jobs in California are:
What cities in California are hiring for Ai Annotation jobs? Cities in California with the most Ai Annotation job openings:
Infographic showing various Ai Annotation job openings in California as of August 2026, with employment types broken down into 67% Full Time, 28% Part Time, 2% Temporary, and 3% Contract. Highlights an 67% Physical, 3% Hybrid, and 30% Remote job distribution.

Project Perseus | Speech & Voice AI Analyst - German Speakers

Welocalize

Los Angeles, CA • On-site

Full-time

Re-posted 14 days ago


Welocalize rating

6.5

Company rating: 6.5 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

329th of 485 rated business services


Job description

Job Summary:
Welo Data is looking for detail-oriented and reliable individuals to join our team as Speech & Voice AI Analysts. This role focuses on executing high-volume data labeling and annotation tasks to support speech and voice AI systems, ensuring accuracy and data integrity in the datasets used for AI training.
Responsibilities:
• Execute high-volume data labeling and annotation tasks across speech and voice datasets
• Follow detailed guidelines to ensure consistency, accuracy, and data integrity at scale
• Work with audio and language data, including transcription, categorization, and tagging
• Maintain strong throughput while meeting quality expectations
• Escalate unclear or ambiguous cases appropriately
• Adapt to evolving guidelines and workflows as systems and requirements change
• Support baseline data production needs for AI training pipelines
• Contribute to team calibrations and quality alignment sessions
Qualifications:
Required:
• Native-level fluency in German
• Strong written communication skills and language fundamentals
• 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree or equivalent academic qualification in a related field.
• Ability to follow detailed instructions and apply guidelines consistently
• High attention to detail and ability to maintain accuracy in repetitive tasks
• Comfort working in structured, process-driven environments
• Ability to manage time effectively and maintain steady output
• Willingness to ask questions and escalate when needed
Preferred:
• Basic familiarity with AI, speech technology, or language data is a plus
Company:
Welocalize provides translation supply chain management solutions that deliver market-ready, translated content. Founded in 1997, the company is headquartered in Frederick, USA, with a team of 1001-5000 employees. The company is currently Late Stage.

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