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Data Rater Jobs in California (NOW HIRING)

Data Engineer III

Newport Beach, CA ยท On-site

$70 - $75/hr

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Data Reporting Analyst

Oakland, CA ยท On-site

$55 - $59/hr

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Staff Data Engineer

Los Angeles, CA ยท On-site

$123K - $148K/yr

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... rater feedback. โ€ข Conduct data quality assessment on labeled sets to identify biases and refine the framework/training. โ€ข Collaborate with Data Science/Engineering to prototype, validate, and ...

Administrative & Data Entry

Oceanside, CA ยท On-site

$22 - $24/hr

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Sr. Data Quality Engineer

San Ramon, CA ยท On-site

$127K - $153K/yr

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Sr. Data Quality Engineer

Beverly Hills, CA ยท On-site

$131K - $157K/yr

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Data Rater information

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

To thrive as a Data Rater, you need strong analytical abilities, attention to detail, and proficiency in following detailed guidelines, often requiring at least a high school diploma or equivalent. Familiarity with web-based evaluation tools, spreadsheets, and sometimes proprietary rating platforms is typically expected. Excellent time management, critical thinking, and effective written communication are valuable soft skills for excelling in this role. These skills ensure accurate and consistent data evaluation, which directly impacts the quality and effectiveness of machine learning models and search algorithms.

What are some common challenges Data Raters face, and how can they effectively manage them?

Data Raters often encounter challenges such as maintaining consistency in their evaluations, understanding complex guidelines, and managing repetitive tasks. To effectively handle these, it's important to regularly review guideline updates, seek clarification from team leads when unsure, and use productivity techniques to stay focused during long periods of rating. Collaborating with peers through forums or team meetings can also help share best practices and resolve ambiguities.

What is the difference between Data Rater vs Data Annotator?

AspectData RaterData Annotator
Required CredentialsHigh school diploma or equivalent; some roles may require basic technical skillsHigh school diploma; some roles may prefer familiarity with annotation tools
Work EnvironmentRemote or office-based; often involves reviewing data for qualityRemote or office-based; involves labeling or tagging data for machine learning
Employer & Industry UsageTech companies, data services, AI firmsAI and machine learning companies, data labeling services

Data Raters primarily review and assess data quality, ensuring accuracy and consistency, while Data Annotators focus on labeling data to train machine learning models. Both roles are essential in AI development, often sharing similar skills and work environments, but differ in their specific tasks and objectives.

What are Data Raters?

Data Raters are professionals who evaluate and provide feedback on data, such as search engine results, advertisements, and social media content, to help improve the accuracy and relevance of algorithms. They often work with large tech companies to assess whether content meets specific quality guidelines and user intent. Data Raters typically work remotely on a part-time or flexible schedule, and their work is crucial in training artificial intelligence systems to better understand human preferences.
What are the most commonly searched types of Data Rater jobs in California? The most popular types of Data Rater jobs in California are:
What are popular job titles related to Data Rater jobs in California? For Data Rater jobs in California, the most frequently searched job titles are:
What job categories do people searching Data Rater jobs in California look for? The top searched job categories for Data Rater jobs in California are:
Infographic showing various Data Rater job openings in California as of July 2026, with employment types broken down into 1% As Needed, 83% Full Time, 12% Part Time, 1% Temporary, and 3% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution.
Senior Data Analyst - Hybrid

Senior Data Analyst - Hybrid

Worker's Compensation Insurance Rating Bureau

San Francisco, CA โ€ข On-site

$117K - $123K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 6 days ago


Job description

Are you eager to make a real difference through data and innovation?

At the WCIRB, the Sr. Data Analyst plays a vital role in supporting a healthy California workersโ€™ compensation system through data-driven insights, innovation, and collaboration. We take pride in producing work that is consistent, accurate, and impactful. Our culture values curiosity, empowerment and safe space, where every question is encouraged and every new idea has the potential to shape the future of our projects. We also believe that great work thrives in balance. Our hybrid work model promotes flexibility and well-being, empowering our team to do their best work while maintaining a healthy work-life balance.
We work on a variety of workersโ€™ compensation projects, from medical cost trend analysis and classification research that support advisory pure premium rate changes (see:โ€ฏRegulatory and Pure Premium Rating Filings | WCIRB California), to innovative studies uncovering emerging drivers of system costs. Our research dives into timely and relevant topics, such asโ€ฏemployee tenure,โ€ฏlong COVID, andโ€ฏthe effectiveness of experience rating in promoting workplace safety. We also push boundaries by exploring how climate change and AI may influence the workersโ€™ compensation landscape in the years ahead. โ€ฏ
Essential Duties and Responsibilities of the Sr. Data Analyst

Assist with the designโ€ฏand implementation of medical and classification analytics projects through:

  • Reviewing published data, information and studies on various research topics and contributing to study design.
  • Independently developing well-documented and reproducible scripts in SQL, R or Python for pulling and wrangling data for the Analystโ€™s own work and for the use of research staff in studies or to address ad-hoc requests.
  • Performing accuracy and reasonableness checks to assure quality of the working dataset is appropriate to each study.โ€ฏ
  • Communicating clearly to research staff the rules employed to prepare the working datasets for study.
  • With limited directions, independently conducting exploratory analyses and statistical analyses (e.g., hypothesis testing, regression analysis, predictive modeling) to answer key research questions.โ€ฏ
  • Applying judgement and discretion in the analyses and in the production of reports and presentations.
  • Exploring external data sources for specific research purposes and performing integration of diverse internal and external data sources, such as external code sets or policy data, to enhance analyses.โ€ฏ
  • Preparing well-formatted tables and figures to present analysis results in reports and presentations.
  • Assuring analysis results are accurate following the Data Analytics team review protocol.
  • Providing technical and peer review of other analystsโ€™ work.
  • Communicating results via written and oral presentations at internal and external meetings.
  • Lead the development of automating routine analysis data and reporting tasks, including quarterly medical benchmarking reports.
  • Provideโ€ฏtraining to data analysts and members of other actuarial and research teams onโ€ฏresearch protocols and team processes (if applicable).
  • Participate in discussions with external agencies, working groups and research groups on medical and classification research.

Education, Experience, and Skill Qualifications

  • Bachelorโ€™s Degree or above in a quantitative field such as statistics, economics, data science, computer science or other related field.โ€ฏ
  • A minimum of four years of SQL, R or Python programming experience in a Data Analyst or equivalent role, or through coursework.โ€ฏ
  • A minimum of two years of professional experience with rating organizations, data analytic companies, property/casualty insurers, health insurers, managed care companies, consulting, and/or hospital systems.
  • Strong proficiency in data wrangling, building functions and producing data visualization in R or Python.
  • Track record of completed analytical projects in R or Python.
  • Proficiency in statistical modeling (e.g., regression analysis), text analytics, geospatial data, or predictive modelling.
  • Strong proficiency in working with relational databases, large data sets and multiple data sources.โ€ฏ
  • Ability to communicate both effectively and professionally, both verbally and in writing.
  • Strong listening and interpersonal skills.
  • Strong proficiency in Microsoft Office suite.

About the WCIRB

For over a century, the Workers' Compensation Insurance Rating Bureau of California (WCIRB) has been California's trusted, objective provider of actuarially based information and research, advisory pure premium rates and educational services integral to a healthy workers' compensation system. The WCIRB is a California unincorporated, private, nonprofit association comprised of all companies licensed to transact workers' compensation insurance in California. The operations of the WCIRB are funded primarily by membership fees and assessments; no state money is used to fund its operations. The WCIRB is a stable company and a proven leader in the workersโ€™ compensation insurance industry nationwide.โ€ฏ

The WCIRB performs a number of functions to accurately measure the cost of providing workers' compensation benefits and ensure a healthy workersโ€™ compensation system. To learn more about our company, please visitโ€ฏAbout Us | WCIRB California.โ€ฏThe WCIRB employs approximately 175 people with the average tenure of over 10 years. We are committed to fostering a healthy, safe and diverse work environment leading to a dedicated, collaborative and innovative workforce This is a hybrid position where approximately 40% of the work time is spent at the home office in downtown San Francisco.โ€ฏ

Perks & Benefits

Our employees enjoy a state of the art, energy-efficient, open work environment that nurtures collaboration and creativity. At the WCIRB, we go the extra mile to keep our employees happy and healthy.โ€ฏ

Proud to be recognized as a Plan Sponsor of the Year finalist for our commitment to retirement readiness through strong 401k and pension offerings.

Some of our perks include:โ€ฏ

  • Hybrid work environment (40% onsite 60% remote)
  • Medical, dental and vision benefits
  • Competitive PTO Program
  • Wellness benefitsโ€ฏ
  • 401K and pension plan
  • Social activities
  • Community volunteer involvement

WCIRB is an equal opportunity employer committed to an inclusive workplace that fosters belonging. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, age, genetic information, or any other basis prohibited by law. We also consider qualified applicants with criminal histories consistent with applicable federal, state and local law.

The successful candidate will reside in California and will work from our headquarters in San Francisco at least 40% of the time. We are NOT able to pay for relocation costs for candidates orโ€ฏto sponsor or take over sponsorship of an employment Visa at this time. Thank you for your interest in the WCIRB!