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Data Annotation Tech Jobs in Berkeley, CA (NOW HIRING)

Prolim Global

Facebook - Linguist III

Burlingame, CA · On-site

We are seeking candidates with strong linguistic data analysis and language technology experience to manage data collection, LLM-powered data synthesis and data annotation tasks, prompt engineering ...

Mill

AI Engineer, Computer Vision

San Bruno, CA

Mill is a waste prevention technology company reimagining what it means to eliminate waste ... Experience building ML training pipelines and data annotation systems at scale. * Experience ...

Voxel Labs

Senior Software Engineer, ML Data

San Francisco, CA · Hybrid

$144K - $190K/yr

Our technology addresses the key cost drivers for workers' compensation, general liability, and ... Familiarity with human in the loop data annotation, auto labeling. Compensation & Benefits * Equity ...

Motional

Senior Full Stack Engineer

San Francisco, CA · On-site +1

$149K - $198K/yr

Collaborate closely with ML, frontend, UX, data services, data mining, and data annotation teams to ... We're creating first-of-its-kind technology that will transform transportation. To do so ...

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All JobsData Annotation Tech JobsData Annotation Tech Jobs in Berkeley, CA

Data Annotation Tech information

See Berkeley, CA salary details

$15

$27

$42

How much do data annotation tech jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for data annotation tech in Berkeley, CA is $27.97, according to ZipRecruiter salary data. Most workers in this role earn between $20.62 and $33.27 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Data Annotation Tech position, and why are they important?

To thrive as a Data Annotation Tech, you need keen attention to detail, basic computer literacy, and familiarity with data labeling standards, often supported by a high school diploma or equivalent. Experience with annotation platforms, image or text labeling tools, and basic knowledge of data management systems is highly valuable. Strong organizational skills, patience, and effective communication set top candidates apart in this field. These skills and qualities ensure annotated data is accurate, consistent, and valuable for machine learning or AI projects.

What does a typical day look like for a Data Annotation Tech?

A typical day as a Data Annotation Tech involves reviewing large sets of data—such as images, text, or audio—and accurately labeling or categorizing them using specialized software. You may work independently or as part of a team, following specific project guidelines to ensure data integrity and consistency. Collaboration with project managers or data scientists is common when clarifying ambiguous data points or addressing annotation challenges. Additionally, productivity targets and quality checks are a regular part of the workflow, helping to keep projects on schedule and maintain high standards.

What is a Data Annotation Tech job?

A Data Annotation Tech is responsible for labeling and categorizing data, such as text, images, audio, or video, to train machine learning models. They follow specific guidelines to ensure accuracy and consistency in annotations, which helps improve the performance of AI systems. This role often involves repetitive tasks, attention to detail, and familiarity with various annotation tools. Data annotation is crucial for AI development in industries like healthcare, finance, and autonomous driving.

Is data annotation legit or not?

Data annotation is a legitimate job that involves labeling data such as images, text, or audio to train machine learning models. It is commonly performed remotely and requires attention to detail, basic technical skills, and familiarity with annotation tools. Many companies hire data annotators as part of AI development projects, making it a valid employment option.
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Data Annotation Tech jobs near you
Facebook - Linguist III

Facebook - Linguist III

Prolim Global

Burlingame, CA • On-site

Contractor

Posted 27 days ago

Job description

PROLIM (www.prolim.com) is currently seeking Linguist III for one of our top Client for Location- Onsite in Redmond, WA or Burlingame, CA

Qualified candidates can directly send your updated resume and contact info via email: alec.dsouza@prolim.com

Job description:

Linguist III

Onsite in Redmond, WA or Burlingame, CA

Summary:

We are looking for a Linguist to help us develop language components for a variety of voice-enabled technologies and products. We are seeking candidates with strong linguistic data analysis and language technology experience to manage data collection, LLM-powered data synthesis and data annotation tasks, prompt engineering, rule-based classifier encoding, and quality evaluations.

Job Responsibilities:

• Provide linguistic expertise while delivering data for large language models

• Collaborate with other linguists and data operations teams in data collection, data curation, and annotation efforts

• Evaluate and curate data sets for ML models using LLM solutions

• Assess model performance and data quality

• Prompt engineering

• Create guidelines in support of labeling projects that enable annotators to consistently label language data at quality

• Collaboratively develop complex and consistent linguistic analyses

Required Qualifications

• Bachelor’s degree in general Linguistics, Computational Linguistics, or related field

• Experience with regular expression encoding

• Knowledge of syntax, semantics, pragmatics, sociolinguistics, corpus linguistics, and other areas of linguistics

• Experience working with speech and text data

• Familiar with Large Language Models (LLMs), prompt engineering and their applications

• Comfortable working in a fast paced, highly collaborative, dynamic work environment

• Strong organizational skills and detail oriented

• Excellent communication skills both verbal and written

• Experience with database queries and data analysis processes (i.e. SQL, spreadsheets)

• Proficiency in Python

Preferred (additional) Qualifications

• Master’s or PhD in Linguistics, language technologies, computational linguistics, or related field

• Experience with machine learning frameworks, NLP Libraries and Tools

2-3 Years of experience working in a Linguist role

Conversational assistant, ML Support, LLMs

About PROLIM

PROLIM is a leading provider of PLM, IoT and Digital transformation solutions to Global Fortune 1000 companies. With 9 global offices in US, India, and Australia, PROLIM has won 30+ awards and proudly serving over 1200+ customers to innovate and improve their profitability and efficiency. PROLIM was founded in 2005 and is headquartered in Farmington Hills, USA. With the global footprint and expertise in latest technologies, PROLIM can partner with you to speed up your Digital Transformation journey.