Mid-level Data Science & Analytics Jobs in California

39 open Mid-level Data Science & Analytics jobs in California at 21 companies, including Amazon, Brex and Oscar Health. Updated daily from company career pages.

Amazon

Amazon is an e-commerce website for consumers, sellers, and content creators.

Brex

Brex is the first fully unified global spend platform — with corporate cards, expense management, reimbursements, and bill pay.

Oscar Health

Oscar is a health insurance company that offers individual and family plans, medicare advantages, and small group products.

OpenAI

OpenAI is an AI research and deployment company that conducts research and implements machine learning.

5 more open roles at OpenAI

Pinterest

Pinterest is a visual bookmarking tool for saving and discovering creative ideas.

Adobe

Adobe is a software company that provides its users with digital marketing and media solutions.

Moloco

Moloco offers programmatic advertising solutions to help optimize the client's acquisition, retention, and monetization campaigns.

Character.ai

Character.ai provides open-ended conversational applications in which users create characters and converse with them.

Together AI

Together AI is a cloud-based platform designed for constructing open-source generative AI and infrastructure for developing AI models.

Checkr

Checkr automates and speeds up the process of professional background checks.

Booz Allen Hamilton

Booz Allen Hamilton is a consulting firm that specializes in analytics, technology, and engineering.

Factory

The machine that builds the machine.

Lightning AI

Lightning AI is the first operating system for AI. Build AI models and Lightning Apps (end to end ML systems).

Hive

Hive provides cloud-based AI solutions for understanding, searching, and generating content

Prime Intellect

Find compute. Train Models. Co-own intelligence.

Nuro

Nuro develops and operates a fleet of electric and autonomous vehicles.

Cognition

Cognition is an applied artificial intelligence lab that focuses on reasoning and code.

Magic

Magic is working on frontier-scale code models to build a coworker, not just a copilot. Come join us: http://magic.dev

Waabi

Waabi is an artificial intelligence (AI) company that commercializes driverless trucks.

DatologyAI

DatologyAI optimize training efficiency, maximize performance and reduce compute costs.

Updated 2026-10-11.