ZipRecruiter

Log In

1

Data Science Junior Jobs in California (NOW HIRING)

Oscar Health

Data Scientist II

Los Angeles, CA · Hybrid

$131K - $172K/yr

Help ensure data science processes and outputs align with broader team strategies and roadmaps * Provide guidance or informal mentorship to junior data scientists or analysts when needed * Contribute ...

Oscar Health

Data Scientist II

Los Angeles, CA · On-site

$131K - $172K/yr

Help ensure data science processes and outputs align with broader team strategies and roadmaps * Provide guidance or informal mentorship to junior data scientists or analysts when needed * Contribute ...

Omnicom

Data Science and Analytics_05

Los Angeles, CA · On-site

Data Science and Analytics As an Associate Director on the Marketing Science Measurement and ... Experience partnering with mid-level and junior clients on key deliverables. Prior management of ...

Panasonic

Data Scientist IV

Irvine, CA · On-site

Mentor and guide the technical direction of junior data scientists, reviewing modeling approach and code to ensure rigor and consistency across the team * Partner with Data Engineering, Product, and ...

Apple

Data Scientist

Cupertino, CA · On-site

As Data Science organization, our goal is to harness the power of user data to help Maps make great ... junior data scientists and leading projects of varying sizes and scopes

Jobtailor

Senior Data Scientist

San Mateo, CA · On-site

$150 - $190/hr

Work on data science projects across marketing and customer domains, including personalization ... Support and mentor junior team members through collaboration and knowledge sharing Requirements ...

Knit Health

Senior Data Scientist

San Francisco, CA

$140K - $175K/yr

As a senior member of a small data science team, this person will also help establish strong scientific and analytical practices while supporting the growth of junior team members. What you'll do You ...

Kros-Wise

Senior Data Scientist

San Diego, CA · On-site

$160K - $200K/yr

S. Citizenship with an active or interim Secret clearanceBachelor's degree in Data Science ... junior data scientists and lead cross-disciplinary technical teams

Namely

Senior Data Scientist

Mountain View, CA · On-site

$120 - $160/hr

... and data science stack, and contributes as a dependable, collaborative team member ... Mentor junior team members, review their work, and ensure delivery quality and reliability.

previous pagenext page

Showing results 21-40

All JobsData Science JobsData Science Junior JobsData Science Junior Jobs in California

Data Science Junior information

See California salary details

$34K

$78.3K

$125.8K

How much do data science junior jobs pay per year?

As of Aug 21, 2026, the average yearly pay for data science junior in California is $78,313.00, according to ZipRecruiter salary data. Most workers in this role earn between $56,300.00 and $80,400.00 per year, depending on experience, location, and employer.

What is a data science junior?

A Data Science Junior is an entry-level role in data science where professionals assist in analyzing data, building models, and generating insights. They work under the guidance of senior data scientists, helping with data cleaning, visualization, and basic machine learning tasks. This role requires proficiency in programming languages like Python or R, knowledge of statistics, and familiarity with data manipulation tools. It serves as a foundation for gaining hands-on experience and advancing in the data science field.

What are the typical daily responsibilities of a data science junior?

As a Data Science Junior, your daily tasks often include cleaning and preparing data sets, conducting exploratory data analyses, and supporting the development of predictive models under the guidance of senior team members. You may also assist in visualizing data and preparing reports to help communicate insights to both technical and non-technical stakeholders. Collaboration is a key part of the role, as you'll frequently work with data engineers, analysts, and business teams to understand project goals. These responsibilities help you build foundational skills and gain exposure to a variety of real-world data problems early in your career.

What are the key skills and qualifications needed to thrive as a data science junior?

To thrive as a Data Science Junior, a strong understanding of statistics, mathematics, and data analysis is essential, often supported by a bachelor's degree in a related field. Familiarity with programming languages like Python or R, as well as tools such as SQL and visualization platforms, is typically required. Strong problem-solving abilities, effective communication, and a willingness to learn make candidates stand out in this role. These skills enable efficient data exploration, clear communication of insights, and successful collaboration on data-driven projects.

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 Data Science Junior jobs in California?

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

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

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

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

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

Data Science Junior jobs near you
Infographic showing various Data Science Junior 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 $78,313 per year, or $37.7 per hour.

Data Scientist II

Oscar Health

Los Angeles, CA • Hybrid

$131K - $172K/yr

Full-time

Re-posted 16 days ago

Oscar Health rating

6.9

Company rating: 6.9 out of 10

Based on 6 frontline employees who took The Breakroom Quiz

260th of 311 rated insurance

Job description

Hi, we're Oscar. We're hiring a Data Scientist II to join our Data team.

Oscar is the first health insurance company built around a full stack technology platform and a relentless focus on serving our members. We started Oscar in 2012 to create the kind of health insurance company we would want for ourselves - one that behaves like a doctor in the family.

About the role:

Oscar's data team is focused on pushing our understanding of this complex landscape of health care and insurance business. Insurance companies sit on a trove of data that is both broad and deep, spanning financial claims, clinical medical records, and rich product interaction data from our members. Connecting the dots across these datasets gives us unique insight into how the healthcare system functions and allows us to improve care coordination, better manage risk, build higher-performing provider networks, and create a standout consumer experience in our product.

As a Data Scientist II you will drive data science projects across multiple teams and domains. In this role, you'll take ownership of analytical and modeling work, contribute to technical direction, and partner closely with business, engineering, product and data stakeholders to deliver impactful solutions.

This is a mid-level role for data scientists who can operate independently, manage ambiguity, and apply advanced analytics or modeling techniques with minimal oversight.
​​You will report into a leader on the Data team (Senior Data Scientist and above). This posting is representative of multiple roles, and final team placement will be determined during the interview process.

Work Location: This position is a hybrid role based in our New York City office, Los Angeles Office, or Tempe Office requiring a hybrid work schedule with 3 days of in-office work per week Thursdays are a required in-office day for team meetings and events, while your other two office days are flexible to suit your schedule. #LI-Hybrid

Pay Transparency: The base pay for this role is: $131,200 - $172,200 per year. You are also eligible for employee benefits, participation in Oscar's unlimited vacation program, company equity grants, and annual performance bonuses.

Responsibilities:

  • Research, develop, and maintain data pipelines, statistical models, and advanced analytical solutions
  • Own projects end-to-end, including problem definition, implementation, validation, and iteration
  • Deliver high-quality analytical and modeling outputs with limited manager oversight
  • Collaborate closely with data science peers and cross-functional partners across business units
  • Help ensure data science processes and outputs align with broader team strategies and roadmaps
  • Provide guidance or informal mentorship to junior data scientists or analysts when needed
  • Contribute to improving data science practices, tooling, and documentation

Requirements:

  • 3+ years of experience in data science, applied analytics, or a related quantitative field (industry, academia, or both)
  • 2+ years of experience using SQL and Python and/or R to query, analyze, and manipulate data
  • 2+ years of experience building data models, using more advanced analytics methods, statistical modeling, and/or data processing

Bonus points:

  • Master's degree in a quantitative or technical field
  • Knowledge of or previous work experience in health care or health insurance
  • Experience mentoring or supporting junior team members
  • Experience deploying or supporting models in production environments

This is an authentic Oscar Health job opportunity. Learn more about how you can safeguard yourself from recruitment fraud here.

At Oscar, being an Equal Opportunity Employer means more than upholding discrimination-free hiring practices. It means that we cultivate an environment where people can be their most authentic selves and find both belonging and support. We're on a mission to change health care -- an experience made whole by our unique backgrounds and perspectives.

Pay Transparency: Final offer amounts, within the base pay set forth above, are determined by factors including your relevant skills, education, and experience. Full-time employees are eligible for benefits including: medical, dental, and vision benefits, 11 paid holidays, paid sick time, paid parental leave, 401(k) plan participation, life and disability insurance, and paid wellness time and reimbursements.

Artificial Intelligence (AI): Our AI Guidelines outline the acceptable use of artificial intelligence for candidates and detail how we use AI to support our recruiting efforts.

Reasonable Accommodation: Oscar applicants are considered solely based on their qualifications, without regard to applicant's disability or need for accommodation. Any Oscar applicant who requires reasonable accommodations during the application process should contact the Oscar Benefits Team (accommodations@hioscar.com) to make the need for an accommodation known.

California Residents: For information about our collection, use, and disclosure of applicants' personal information as well as applicants' rights over their personal information, please see our Privacy Policy.

What Oscar Health employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom