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Sr. Data Scientist

47480

Job Responsibilities:

  • Collaborating with business users to understand their key priorities and use cases; proposing and developing solutions using data science and/or Generative AI techniques to drive business value

  • Researching emerging AI/data science techniques and identifying relevant ones to explore and adopt (e.g. Agentic, LLM, Predictive, Fraud/Anomaly Detection, Text Analytics, Customer Segmentation)

  • Data wrangling & analysis - preprocessing, cleaning and feature engineering

  • Supporting the daily operations and maintenance of deployed data science models and products

  • Developing backend APIs and services to support AI model deployment and integration

  • Building frontend interfaces and user experiences for AI-powered applications

  • Documenting changes to existing products

  • Reviewing and implementing fixes for reported security vulnerabilities;

Job Requirements:

  • Able to understand and apply a range of AI/ML techniques for regression and classification

  • Familiar with popular python packages ( e.g. pandas, matplotlib, scikit-learn, XGBoost, NLTK, spaCy )

  • Understanding of LLM concepts (e.g. context windows, embeddings, chunking, token management) and architectures (e.g. RAG)

  • Experience with context engineering techniques and prompt optimization strategies

  • Proficient in git, SQL

  • Proficient in Business Intelligence tools (e.g. Tableau, Qlik, MS PowerBI, Microstrategy)

Bonus Skillsets

  • Proficient in modern programming languages (e.g. typescript, C#)

  • Experience in cloud platform and services preferably in AWS

  • Experience in Docker/Kubernetes

  • Experience with web frameworks and full-stack development, including backend frameworks (e.g. FastAPI, Flask, Express.js) and RESTful API development, and frontend technologies (e.g. React, Vue.js, HTML/CSS, TypeScript)

  • Experience with LLM frameworks (e.g. LangChain, LlamaIndex, Hugging Face Transformers)

  • Knowledge of vector databases and embedding techniques (e.g. Pinecone, Chroma, FAISS)

  • Understanding of AI agent frameworks and multi-agent systems

  • Strong presentation skills and ability to explain technical concepts clearly to a non-technical audience

  • Proficient in statistical software tools (e.g. R, SAS)

#LI-CTSAPAC


About Cognizant: 
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.

Additional employment information
Compensation 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.

Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.

Benefits that help you thrive and grow

Our benefits program is built with you in mind—so you can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include financial education, a pension plan with matching contributions, etc.

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Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

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Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations—and build the skills you need to grow your career.

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Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

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