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Freelance Data Science Jobs in California (NOW HIRING)

Glint Tech Solutions LLC

Supply Chain BD

Los Angeles, CA · On-site

$90 - $130/hr

... freelancers, part-time workers, etc.). * Assist in establishing systems for collector recruitment ... Majors in Computer Science, Communications, Automation, Data Science, Management, or related fields ...

Intuit

Group Creative Director - Credit Karma

Oakland, CA · On-site

$213K - $289K/yr

... Data Science, and Product Design to drive engagement, retention, trust, and financial progress ... Oversee external agencies, freelancers, and production resources as needed. * Drive measurable ...

Intuit

Group Creative Director - Credit Karma

Oakland, CA · On-site

$213K - $289K/yr

... Data Science, and Product Design to drive engagement, retention, trust, and financial progress ... Oversee external agencies, freelancers, and production resources as needed. * Drive measurable ...

Radical Numerics

Marketing Associate

San Francisco, CA · On-site

$70 - $90/hr

We've redesigned the foundation model training stack to turn the world's raw scientific data (e.g ... Source, brief, and manage specialized vendors and freelancers (designers, video producers ...

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Freelance Data Science information

See California salary details

$37K

$121.1K

$193.9K

How much do freelance data science jobs pay per year?

As of Sep 2, 2026, the average yearly pay for freelance data science in California is $121,131.00, according to ZipRecruiter salary data. Most workers in this role earn between $97,200.00 and $134,200.00 per year, depending on experience, location, and employer.

What is a freelance data scientist?

Freelance data scientists are independent professionals who analyze, interpret, and extract insights from data for clients on a project or contract basis, rather than working as full-time employees for a single organization. They leverage skills in statistics, programming, and machine learning to solve business problems, build predictive models, and visualize data. Freelance data scientists often work with multiple clients across various industries, providing flexibility and the ability to specialize in different types of data projects. Their work may include tasks such as data cleaning, exploratory data analysis, algorithm development, and reporting findings to stakeholders.

What are the key skills and qualifications needed to thrive as a freelance data scientist?

To thrive as a Freelance Data Scientist, you need strong proficiency in statistics, programming (commonly Python or R), and data analysis, often backed by a degree in a quantitative field or relevant certifications. Mastery of tools like Jupyter Notebook, SQL, machine learning libraries (e.g., scikit-learn, TensorFlow), and experience with cloud platforms are typically required. Excellent communication, self-motivation, and time management skills set successful freelancers apart by enabling effective client collaboration and project delivery. These abilities ensure you can independently deliver actionable insights and solutions that meet diverse client needs in a competitive market.

What are the most common challenges faced by freelance data scientists when working with clients remotely?

Freelance data scientists often encounter challenges such as unclear project scopes, varying data quality, and communication gaps when collaborating remotely with clients. It's essential to establish clear expectations, maintain regular updates, and set milestones to ensure both parties are aligned throughout the project. Additionally, freelancers may need to adapt to different tools or platforms based on each client's preferences, requiring flexibility and strong self-management skills. Building trust and delivering insights in a clear, actionable manner can help foster long-term client relationships.

What is the difference between Freelance Data Science vs Data Analyst?

AspectFreelance Data ScienceData Analyst
CredentialsTypically requires a degree in data science, statistics, or related fields; certifications like CAP or Microsoft Data AnalystOften requires a degree in statistics, mathematics, or related fields; certifications like Microsoft Data Analyst or Tableau
Work EnvironmentIndependent, project-based, remote or on-siteUsually employed within organizations, working in teams or departments
Employer & Industry UsageFreelance data science projects across various industries like tech, finance, healthcareIn-house roles in industries such as finance, marketing, healthcare, and retail

Freelance Data Science involves independent, project-based work requiring advanced skills in machine learning, programming, and statistical analysis. Data Analysts typically focus on interpreting existing data, creating reports, and visualizations within organizations. While both roles require strong analytical skills, freelance data scientists often handle more complex modeling tasks, whereas data analysts focus on data interpretation and reporting.

What are the most commonly searched types of Data Science jobs in California?

The most popular types of Data Science jobs in California are:

What are popular job titles related to Freelance Data Science jobs in California?

For Freelance Data Science jobs in California, the most frequently searched job titles are:

What job categories do people searching Freelance Data Science jobs in California look for?

The top searched job categories for Freelance Data Science jobs in California are:

What cities in California are hiring for Freelance Data Science jobs?

Cities in California with the most Freelance Data Science job openings:

Freelance Data Science jobs near you
Infographic showing various Freelance Data Science job openings in California as of August 2026, with employment types broken down into 1% As Needed, 88% Full Time, 9% Part Time, and 2% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $121,131 per year, or $58.2 per hour.

Digital Account Supervisor, long-term on-going freelance

INNOCEAN Worldwide Canada

Huntington Beach, CA • On-site

$95 - $110/hr

Other

Medical, Dental, Vision

Posted yesterday

New

Job description

INNOCEAN USA, a full-service advertising agency located in Huntington Beach, CA, is searching for a freelance Digital Account Supervisor to join our Hyundai team!This is a long-term, ongoing, contract role.We are a hybrid work environment, x 3 days week in-office. Local candidates only, please.OVERVIEWThe Account Supervisor is responsible for the day-to-day management of client’s automotive website initiatives that center around leveraging data to optimize a user's experience.Seeking candidates with experience in web personalization within a (digital) ad agency in client services role. The successful candidate should possess good client contact skills including, but not limited to, conducting presentations, trouble-shooting problems and thinking on their feet.DUTIES AND RESPONSIBILITIESKey Role ResponsibilitiesWork with the client to identify needs and expectations on website optimizations and large data-driven initiatives.Initiate projects derived from strategic/data insights, client/business needs, and creative ideas. Accurately plan and forecast project budgets.Deliver on (medium to large scope) site updates and self-contained projects unaided. Takes ownership of deliverables and facilitates work effectively across internal teams and vendors.Brief creative and production teams on project initiatives including website maintenance, development, and asset generation.Identify key stakeholders and disseminate information as necessary.Present/communicate progress and outcome of projects to clients and determine best next steps.Facilitate internal and client reviews, update status documents, legal routing, contact reports, and meeting coordination.Results owner – can articulate past results and measurements strategy/optimizations.Be the steward of the agency’s brand management system and show solid knowledge of the client’s business (including pricing, product, sales, marketing channels, strategies, and competitive landscape). Able to lead client discussions regarding digital marketing insights and recommendations.Embrace “We are explorers”, being pioneers with an insatiable drive to lead ideas, innovation, and science into uncharted territory for our clients.Management ResponsibilitiesManage multiple projects simultaneously, collaborating closely with several cross-functional agency teams to ensure seamless coordination and delivery of objectives.Manage client and vendor partners, fostering strong relationships, and serving as a reliable point of contact to address their needs and ensure satisfaction with our services and solutions.Oversee the efforts of junior staff and provide guidance on projects.Oversee internal process.QUALIFICATIONSExperience and Education5+ years of experience in a client services function within an ad agencyPreferred experience in website personalization, leveraging data insights to optimize user experiences and drive engagement for enhanced conversion and performance.Preferred experience with ad/mar tech stacks, coupled with a grasp of AI capabilities, enabling strategic utilization to optimize campaigns and drive engagement.Technical KnowledgeKnowledgeable in MS software, Word, Power Point, and Excel.Knowledgeable in web development process is a MUST.Skills and AbilitiesStrong presentation and communication skillsAbility to stay organized and manage multiple projects efficiently.Ability to assess a situation and make sound judgment calls / recommendations.Foster positive relationships with clients, external partners, and internal teamsAbility to manage budgets and agency billings.BENEFITSAccess to medical, dental and vision insurance401k matchOn-site BaristaBeautiful campus across from the Pacific OceanThe salary for this role is $95,000-$110,000. Pay is dependent upon several factors including but not limited to: client, experience, training, and transferable skills.Who are we? We are a global brand growth company, independent in spirit, built on one belief: if it doesn’t move people, it won’t move business. So, we go where others don’t. Deep inside human life. Closer to what people think, feel, value, and do. We’ve built the tools and methods to get there and stay there. The closeness is our advantage. That’s where momentum and growth live. #J-18808-Ljbffr

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