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Salary
≈ $21k – $56k per year (Estimated)
Location
Hybrid (Chennai, India)
Seniority
Principal · 12+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Sep 30, 2026. Cognizant scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Cognizant is an American information technology services and consulting company founded in 1994 as an in-house technology unit of Dun and Bradstreet in Chennai, India, and headquartered in Teaneck, New Jersey. It builds, integrates and operates software and infrastructure for large enterprises, with particularly deep positions in healthcare, financial services, insurance and life sciences, delivered by a global workforce of more than three hundred thousand people concentrated in India. Listed on Nasdaq, the company competes with the large Indian and global systems integrators and has reoriented its offerings around cloud migration, data platforms and AI-assisted engineering.

About Cognizant Corporate

Cognizant Corporate is a global community united by a shared purpose: to make a meaningful impact. We are committed to excellence and driven by outcomes that matter. Collaboration is at the heart of how we work, and our forward-thinking mindset fuels continuous learning, innovation, and growth. At Cognizant, careers transcend titles. We empower our people to think strategically, inspire others, and lead with purpose, always guided by our core values. Join us in shaping the future of business. Could you be the one to make a difference?

About the Role

As a Tech Lead/Architect (M) - Python and Data Science Tech Stack, you will drive impactful contributions and focus on delivering data-driven solutions that create business value. You will be a key member of the engineering and data science organization, collaborating with technical teams, business stakeholders, architects, and cross-functional partners. You will have the autonomy to lead, innovate, and improve workflows while upholding our commitment to quality and continuous learning.

In this role, you will:

  • Lead and mentor a team of Python developers and data scientists, providing technical guidance, fostering innovation, and driving a collaborative team culture.
  • Architect, design, and develop scalable, robust, and high-performance software solutions using Python and modern data science technologies.
  • Oversee project delivery by managing technical design, timelines, stakeholder communication, and ensuring successful execution within scope and budget.
  • Implement and optimize machine learning models, data science solutions, and analytics capabilities to address complex business challenges.
  • Collaborate with cross-functional teams and business stakeholders to translate business requirements into technical solutions while ensuring consistency, integration, and engineering excellence across projects.

What You Must Have to Be Considered

  • 12+ years of hands-on experience in application design and engineering.
  • Strong proficiency in Python programming and data science libraries including Pandas, NumPy, Scikit-learn, TensorFlow, and PyTorch.
  • Deep understanding of machine learning algorithms, statistical analysis, and predictive modeling techniques.
  • Expertise in data preprocessing, feature engineering, data wrangling, and model optimization.
  • Strong experience with SQL and NoSQL databases.
  • Experience with big data technologies such as Hadoop, Spark, and Kafka.
  • Proficiency in CI/CD implementation using Jenkins, GitLab CI, CircleCI, Azure DevOps, or similar platforms.
  • Hands-on experience with Docker and Kubernetes.
  • Experience working with cloud platforms including AWS, Microsoft Azure, and Google Cloud Platform (GCP).
  • Strong analytical, problem-solving, leadership, and stakeholder management skills.
  • M.Sc., M.Tech., or B.Tech. in Computer Science, Artificial Intelligence, or a related field.
  • Experience in a similar leadership role within the industry.
  • A strong sense of ownership, desire to create meaningful outcomes, and passion for impactful work.
  • The embodiment of Cognizant’s Values of: Work as One, Dare to Innovate, Raise the Bar, Do The Right Thing, and Own It.

These Will Help You Succeed

  • Relevant certifications in Data Science, Artificial Intelligence, and Machine Learning.
  • Experience leading large-scale data science and AI transformation initiatives.
  • Strong experience with enterprise architecture and solution design.
  • Proven ability to develop innovative solutions for complex technical and business problems.
  • Expertise in performance tuning and scalability optimization for data-driven applications.

Work Model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring work from a Cognizant office in Bangalore or Chennai as needed by business and project requirements. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting and may change based on project, business, or client requirements.

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