Data Scientist Jobs in California, United States

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.

Northrop Grumman Aeronautics Systems Tooling organization is seeking an Associate Data Scientist or Data Scientist to build data mining architectures, statistical models, and visualizations that drive efficiency and insight across the sector. The role creates data pipelines, dashboards, and cost analysis reports while collaborating with cross‑functional teams and supporting SharePoint data sites.

Data Scientist for Analytics (Engineer/Scientist Support) at CACI International. Seeking proactive engineer or scientist skilled in MATLAB/Python to analyze defense system data, develop automation scripts, produce technical reports, and collaborate with government teams.

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.

Data Science & Architecture team at DDN builds AI‑driven data platforms that power high‑performance workloads. The role designs modern data architectures, develops machine learning models for forecasting, anomaly detection and product intelligence, and delivers scalable analytics solutions.

Applied Materials seeks a Data Scientist & Data Analyst to build EPIC Center’s operational data foundation and deliver actionable insights that boost lab productivity and throughput. The role involves designing data models, identifying data gaps, and creating dashboards that provide real‑time visibility into lab performance.

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.

Data Science team at Beast Industries builds a first‑of‑its‑kind consumer membership ecosystem, centralizing CRM, loyalty, and marketing across all lines of business. The Senior Data Scientist anchors the experimentation program, designing, powering, and analyzing A/B tests, causal studies, and lifecycle metrics that drive real‑world decisions for membership, Feastables, and other LOBs.

Data Scientist for Analytics (Engineer/Scientist Support) at CACI International. Seeking proactive, detail-oriented engineer or scientist with MATLAB/Python foundation to analyze defense system data, develop automated scripts, prepare technical reports, and collaborate with multidisciplinary teams.

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.

Salary Range: $9,333.00 - $12,576.46 per month SUMMARY The Los Angeles County Department of Homeless Services and Housing (HSH) consolidates our countywide response to homelessness. The driving force behind HSH is increasing accountability and transparency, improving care for people experiencing or at risk of homelessness, and streamlining collaboration with partners including services providers, the County’s 88 cities, and unincorporated areas to deliver high-quality, life-saving care.

Data Scientist at PayPal focuses on payments risk management and data analytics. Develop and implement predictive models, analyze complex datasets, and ensure data quality.

Tempus AI, Inc. seeks a Data Scientist II to join the Scientific and Technological Solutions team, bridging the gap between the company’s proprietary real‑world evidence platform and the complex research questions of clients. The role focuses on client onboarding, scientific problem solving, and translating research hypotheses into actionable workflows on the Tempus Data Platform.

Data Modeling & AI Analytics team at Astreya builds next‑generation data platforms for predictive analytics, machine learning and intelligent automation. The Data Scientist III designs AI‑ready data models, creates feature‑ready datasets and implements semantic layers to support use cases like grid reliability, wildfire risk and generative AI. Remote, CA, remote work model.

CACI’s Data Science team in Norco, CA, drives analytical insights for Integrated Combat Systems. The role analyzes defense data, automates workflows with MATLAB/Python, and prepares technical reports for government stakeholders.

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

Data Scientists at Disney Entertainment Direct-to-Consumer partner with Content, Product, Marketing, Analytics, Business Operations, and Engineering teams across Disney+, Hulu, and ESPN+. They build machine learning models, perform statistical analysis, and create visualizations to empower decision‑makers with predictions and insights that influence millions of users worldwide.