Senior Data Scientist

We are Cognizant AIA

About AI & Analytics: Artificial intelligence (AI) and the data it collects and analyzes will soon sit at the core of all intelligent, human-centric businesses. By decoding customer needs, preferences, and behaviors, our clients can understand exactly what services, products, and experiences their consumers need. Within AI & Analytics, we work to design the future-a future in which trial-and-error business decisions have been replaced by informed choices and data-supported strategies!By applying AI and data science, we help leading companies to prototype, refine, validate, and scale their AI and analytics products and delivery models! Cognizant's AIA practice takes insights that are buried in data and provide businesses with a clear way to transform how they source, interpret, and consume their information. Our clients need flexible data structures and a streamlined data architecture that quickly turns data resources into informative, meaningful intelligence.

Job Title - Sr Data Scientist-7 + years of experience

As a Senior Data Scientist at Cognizant, you will be at the forefront of transforming legal operations through advanced AI and machine learning. You will work in a dynamic, collaborative environment that blends the agility of a start-up with the scale of a global enterprise. Your primary focus will be on developing production-grade AI solutions that address complex legal and business challenges using large-scale natural language datasets.

Key Responsibilities:

• Design, develop, and deploy LLM-based applications tailored to legal and compliance domains.
• Build and maintain high-quality datasets and pipelines for legal document processing, annotation, and evaluation.
• Collaborate with legal experts and cross-functional teams to ensure AI models meet domain-specific requirements.
• Conduct rigorous experimentation and performance evaluation of AI/ML and GenAI models.
• Translate complex product requirements into scalable software solutions.
• Implement best practices in software development, including code reviews and CI/CD for ML pipelines.
• Ensure ethical AI practices and alignment with business objectives in all deliverables.

Required Skills & Experience:

• Strong foundation in machine learning techniques such as dimensionality reduction, clustering, embeddings, and sequence classification.
• Hands-on experience with deep learning frameworks like PyTorch, TensorFlow, and Hugging Face Transformers.
• Proficiency in NLP tools and libraries including spaCy, word2vec, Flair, BERT, and Keras.
• Experience with large language models (LLMs), prompt engineering, fine-tuning, and benchmarking using LangChain, LlamaIndex, etc.
• Solid programming skills in Python and familiarity with cloud platforms (AWS, GCP, Azure).
• Understanding of data modeling and experience with relational, NoSQL, and vector databases (e.g., Postgres, Elasticsearch, ChromaDB).
• Familiarity with distributed computing systems such as Spark, Ray, or Scala is a plus.
• Experience in ML Ops/AI Ops, API development, and containerization is highly desirable.

This role is ideal for someone who thrives on delivering production-ready code, values collaboration, and is passionate about applying AI to real-world legal challenges. If you're ready to push the boundaries of what's possible in legal tech, we'd love to hear from you.

Salary and Other Compensation:Applications will be accepted until July 4th 2025.The annual salary for this position is between $120-150K depending on experience and other qualifications of the successful candidate.This position is also eligible for Cognizant's discretionary annual incentive program, 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* 401(k) plan and contributions* Long-term/Short-term Disability* Paid Parental Leave* Employee Stock Purchase PlanDisclaimer: 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.