Data Scientist Jobs in California, United States

C3 AI is an Enterprise AI application software company building the C3 Agentic AI Platform and industry-specific SaaS enterprise AI applications. As a member of the C3 AI Data Science team, you will partner with data scientists, AI engineers, and subject matter experts to design, implement, and deploy AI capabilities for enterprise customers on the C3 AI Platform.

Catastrophe Engineering and Analytics (CAT E&A) team at Berkshire Hathaway Specialty Insurance builds advanced risk models for natural and man‑made catastrophes. The Data Scientist develops and applies machine learning, AI, and statistical techniques to large claims, hazard, and geospatial datasets to improve underwriting decisions.

C3 AI Data Science team builds enterprise AI applications on the C3 AI Platform, enabling large organizations to accelerate digital transformation. The role leads research, design, implementation, and deployment of AI models, agentic solutions, and optimization algorithms, collaborating with customers, data engineers, and subject matter experts.

DoorDash seeks experienced Data Scientists to lead analytics across multiple teams, driving data‑driven decisions in areas such as customer acquisition, fraud prevention, marketing, and marketplace efficiency. Candidates will design experiments, build dashboards, mentor junior analysts, and collaborate with engineering to implement data solutions.

Catastrophe Engineering and Analytics (CAT E&A) team at Berkshire Hathaway Specialty Insurance builds advanced risk models for natural and man‑made catastrophes. The Data Scientist applies machine‑learning, statistical and probabilistic techniques to large claims, hazard and geospatial datasets, developing predictive models and tools that inform underwriting decisions.

Data Science team at CACI supports government assessments of Integrated Combat and Weapons Systems. The role analyzes system performance data, builds MATLAB/Python scripts for data extraction and visualization, and prepares technical reports for senior analysts.

Deepgram is seeking a Senior Data Scientist, Data Flywheel to sit at the intersection of research and data, focusing on conversational audio and voice AI. You will characterize data, design active-learning loops, build human-in-the-loop workflows, and create benchmarking datasets to drive model improvements. This hands-on role reports to the VP of Data Operations and offers latitude to define areas from first principles.

GTM Data Science & Analytics at Adobe builds growth strategy for Adobe.com B2C, turning customer journey data into actionable insights. The Senior Data Scientist analyzes acquisition, conversion, retention, and churn across the funnel, drives weekly performance reviews, and elevates the team’s technical bar by contributing to shared code libraries.

Growth Data Science (GDS) at Moloco partners with advertisers, product, and engineering to maximize Moloco Ads effectiveness. The role bridges commercial advertiser objectives with product strategy, designing activation frameworks, influencing roadmaps, and translating insights into scalable solutions.

Clinical Data Solutions team at Neurocrine Biosciences builds scalable data pipelines and analytical products to support clinical trial design, monitoring, and analysis. The Senior Data Scientist develops and maintains data pipelines, dashboards, and AI-enabled tools, collaborates with Clinical Development, Operations, Biometrics, and IT, and ensures production‑ready solutions in a regulated environment.

CACI is seeking a Data Scientist for Analytics to support Engineer/Scientist teams in technical analysis for government-led assessments of Integrated Combat Systems and Weapons Systems, including IAMD, SUW, BMD, GBAD, Strike, Area Defense, Self-Defense, and Point Defense. Day-to-day work involves analyzing data from defense training, testing, and evaluation events, developing and maintaining automated MATLAB or Python scripts for data extraction and transformation, preparing technical inputs and

Deepgram is seeking a Senior Data Scientist for its Data Flywheel team to sit at the intersection of research and data, characterizing conversational audio and shaping data strategies that drive model gains. You will build analysis and active-learning loops, design human-in-the-loop workflows, create representative benchmarks, and turn ambiguous data into measurable model improvements.

PlayStation Global’s Direct to Consumer (D2C) Data Science team builds data‑driven insights for payment and subscription experiences. The role applies statistics, machine learning, and experimentation to optimize payment flows, recover subscriptions, and evaluate ROI of new payment features.

The Data Scientist I, Transportation & Traffic Data role sits within ICBC's Road Safety Data Services team in North Vancouver, BC, supporting evidence-based decision-making through advanced analytics, road safety intelligence, and mobility insights. Day-to-day, you will apply statistical, geospatial, predictive, and exploratory techniques to large, diverse datasets (crash, claims, traffic, telematics, enforcement, demographic, and partner data), design and maintain analytical models and data pro

Strava’s Data Products team sits at the core of the company’s AI strategy, turning community and activity data into reliable, enriched datasets that power user experiences at scale. As a Lead Data Scientist, you will drive the team’s measurement strategy, define evaluation frameworks and offline/online metrics, own experimentation and monitoring for production models, and partner closely with Machine Learning Engineers to scope AI/ML opportunities.

Multimedia Data Science team at TikTok focuses on optimizing the app experience through data-driven solutions for video on demand content. The Data Scientist Intern will develop experience metrics, conduct experiments, and build models to personalize publishing experiences while collaborating with cross‑functional partners.

Physical Sciences AI team at Lila Sciences builds scientific superintelligence systems to accelerate drug discovery. The role develops low-data machine learning models, active and meta‑learning strategies, and multimodal pipelines that guide experimental design and compound selection.

Senior Data Scientist leading data science projects for Los Angeles County Homeless Services. Build dashboards, predictive models, and metrics to improve program outcomes.

AI Data team at Google drives the creation of high-quality training data for large language models. The Senior Staff Research Data Scientist leads the design and deployment of advanced data science solutions, collaborates with product and model teams, and defines metrics to improve model performance.

AI Data Intelligence team at Google drives the creation of high-quality data for large language models. The role designs and deploys novel data acquisition and quality improvement techniques, collaborating with Research, Engineering, and Product teams to enhance model performance.