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Freelance Data Annotation Specialist Jobs (NOW HIRING)

The Data Annotation Specialist will be responsible for creating, refining, and validating ground-truth data for the company's perception and mapping stacks. Responsibilities : • 3D Perception ...

As a Data Annotation Specialist, you will be pivotal in iterating on our AI system by annotating data on various tasks performed by robots, directly influencing the performance of robotic arms.

Role Overview We are seeking a highly meticulous and motivated Data Annotation Specialist to join our team. High-quality data is the lifeblood of our "Physical AI" and the foundation of our ...

Role Overview We are seeking a highly meticulous and motivated Data Annotation Specialist to join our team. High-quality data is the lifeblood of our "Physical AI" and the foundation of our ...

Perform accurate data entry and data validation to ensure high-quality datasets. * Review, label, and categorize images to support machine learning and AI model training. * Follow detailed annotation ...

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Freelance Data Annotation Specialist information

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How much do freelance data annotation specialist jobs pay per hour?

As of Jul 27, 2026, the average hourly pay for freelance data annotation specialist in the United States is $20.24, according to ZipRecruiter salary data. Most workers in this role earn between $16.35 and $21.88 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Freelance Data Annotation Specialist, and why are they important?

To thrive as a Freelance Data Annotation Specialist, you need strong attention to detail, proficiency in data labeling concepts, and a foundational understanding of data privacy and security. Familiarity with annotation tools like Labelbox, Supervisely, or CVAT, and sometimes basic knowledge of Python or data formats (e.g., JSON, CSV) is often required. Being reliable, self-motivated, and able to follow complex guidelines distinguishes top performers in remote, independent work environments. These skills ensure high-quality, accurate datasets that are essential for training reliable machine learning models.

What is the difference between Freelance Data Annotation Specialist vs Data Labeler?

AspectFreelance Data Annotation SpecialistData Labeler
CredentialsBasic computer skills, attention to detailBasic computer skills, attention to detail
Work EnvironmentRemote, flexible freelance projectsRemote or on-site, often part-time or full-time
Employer/IndustryTech companies, AI/ML firms, freelance platformsTech companies, AI/ML teams, often in-house or outsourced

Freelance Data Annotation Specialists and Data Labelers perform similar tasks involving labeling data for machine learning. The main difference lies in the scope and flexibility: Freelance Specialists often work independently on varied projects, while Data Labelers may be employed full-time or part-time within organizations. Both roles require attention to detail and basic technical skills, but Freelance Data Annotation Specialists typically have more flexibility and diverse project experience.

What does a Freelance Data Annotation Specialist do?

A Freelance Data Annotation Specialist is responsible for labeling, tagging, or categorizing data—such as images, text, or audio—to help train artificial intelligence and machine learning models. They work independently, often on a contract basis, for organizations that require large annotated datasets. Their tasks may include identifying objects in photos, transcribing spoken words, or classifying text according to specific criteria. This work is essential for improving the accuracy and performance of AI systems. Freelance specialists must pay close attention to detail and follow specific guidelines to ensure high-quality annotations.

What are some common challenges faced by Freelance Data Annotation Specialists, and how can they be managed?

Freelance Data Annotation Specialists often encounter challenges such as maintaining consistent data quality, meeting tight deadlines, and understanding complex annotation guidelines from clients. It's important to develop strong time management skills and clarify instructions with clients before starting a project. Additionally, using annotation tools efficiently and staying updated on best practices can help ensure accuracy and efficiency in your work.
More about Freelance Data Annotation Specialist jobs
What cities are hiring for Freelance Data Annotation Specialist jobs? Cities with the most Freelance Data Annotation Specialist job openings:
What are the most commonly searched types of Data Annotation Specialist jobs? The most popular types of Data Annotation Specialist jobs are:
What states have the most Freelance Data Annotation Specialist jobs? States with the most job openings for Freelance Data Annotation Specialist jobs include:
Infographic showing various Freelance Data Annotation Specialist job openings in the United States as of July 2026, with employment types broken down into 3% Locum Tenens, 23% Full Time, 28% Part Time, 1% Contract, 44% Nights, and 1% Summer. Highlights an 46% Physical, 1% Hybrid, and 53% Remote job distribution, with an average salary of $42,098 per year, or $20.2 per hour.
Data Annotation Specialist

Data Annotation Specialist

Blackstone Talent Group

Santa Rosa, CA • On-site

$30 - $35/hr

Other

Posted 12 days ago


Job description

Data Annotation Specialist


Position Details:

Location: San Francisco, CA 94107 (Onsite)

Type: Contract

$30-35w2 per hour


The Annotation QA Specialist is responsible for ensuring the quality, accuracy, and consistency of annotated datasets. Working closely with internal teams, this role maintains high standards of data integrity and supports the smooth execution of data-related projects.


Responsibilities

  • Serve as the primary quality checkpoint for our route configuration and annotation process, ensuring adherence to quality standards and project requirements.
  • Review and evaluate datasets for accuracy, completeness, and consistency — identifying, flagging, and resolving discrepancies or errors.
  • Conduct regular quality control audits on annotated data, implementing and tracking corrective measures as needed.
  • Document QA findings and trends, providing actionable insights and recommendations to improve annotation quality over time.
  • Collaborate with annotation team members and cross-functional partners to communicate quality standards and address recurring issues.
  • Assist with data analysis and reporting tasks as needed.


Required Qualifications

  • Excellent attention to detail with a high degree of accuracy in reviewing and evaluating annotated data.
  • Strong communication and interpersonal skills, with the ability to work effectively in a team environment.
  • Ability to prioritize tasks, meet deadlines, and adapt to shifting project requirements.
  • Strong analytical and problem-solving skills, with the ability to translate data findings into actionable recommendations.
  • Proficiency in spreadsheet tools (Excel, Google Sheets).




EEO Statement:


Blackstone Talent Group is a division of Blackstone Technology Group, a global IT services and solutions firm that implements technological solutions across commercial industry verticals and the US Federal Government. Blackstone’s global talent augmentation practice was founded in 1998. Blackstone Talent Group has offices in San Francisco, Denver, Houston, Colorado Springs, and Washington, DC. We specialize in providing clients the best talent across a variety of industries and sectors.