Data Scientist

About Us
Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World's Best Employers 2024) is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at

Job Title: Data Scientist
Location: Redwood City, CA
Job Summary
We are looking for a highly skilled and motivated Senior Data Scientist with 7–10 years of experience in machine learning, deep learning, and advanced data analytics. This hybrid role involves designing and deploying scalable AI solutions using cloud platforms, collaborating with cross-functional teams, and driving innovation across business domains. The ideal candidate will have strong statistical foundations, hands-on experience with modern ML frameworks, and a passion for solving real-world problems.

Responsibilities

• Design, develop, and deploy machine learning models for business-critical applications such as fraud detection, predictive maintenance, and search optimization.
• Conduct hypothesis-driven research, build and test multiple models, and refine them for performance and accuracy.
• Perform exploratory data analysis (EDA) to uncover insights and inform model development.
• Utilize Azure OpenAI Service, Cloud AutoML, and ML Ops practices for scalable and efficient model deployment.
• Build and manage data pipelines using Airflow and other orchestration tools.
• Apply deep learning techniques using PyTorch and TensorFlow for NLP, computer vision, and time-series analysis.
• Leverage OpenCV for image processing and computer vision tasks.
• Integrate knowledge graph techniques to enhance data connectivity and retrieval.
• Collaborate with domain experts and cross-functional teams to align data science efforts with business goals.
• Stay current with advancements in AI/ML and contribute to continuous improvement of solutions.

Qualifications

• MS or PhD in Computer Science, Statistics, Electrical Engineering, or a related field.
• Strong foundation in statistics, linear algebra, calculus, and probability.
• Proven experience in supervised and unsupervised learning, regression, classification, and deep learning.
• Proficiency in Python and R for data analysis, modeling, and visualization.
• Experience with scalable ML systems (e.g., MapReduce, streaming architectures).
• Hands-on experience with Azure OpenAI, ML Ops, and cloud-based ML platforms.
• Familiarity with NLP, computer vision, and image processing using OpenCV.
• Knowledge of SEO and data-driven optimization techniques is a plus.
• Experience in Listing & Finding Services domain is an advantage.
• Excellent communication skills and ability to work independently and in teams.
• Preferred: Experience with JavaScript/Java, time-series modeling, and a portfolio of projects (GitHub, publications, etc.).

Data Scientist JD Discussion

• Hypothesis, identifying what type of models to build
• Build multiple models
• Test the models
• Refine and fine tune the models
• This is not data analytics. They need to be pure data scientists

Application Expire: 10/31/2025

Salary Range : 70 to 109k USD

This position is also eligible for Cognizant's discretionary annual incentive program and stock awards, based on performance and subject to the terms of Cognizant's applicable plans.

Benefits
Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance
• Paid holidays plus Paid Time Off
• Long-term/Short-term Disability
• Paid Parental Leave
• Employee Stock Purchase Plan

Disclaimer
The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.