Cognizant Hiring 2025 – Python Testing (Automation & Data Validation)
Cognizant Technology Solutions is hiring for the position of Python Testing (Automation Engineer). This is a specialized role focusing on Data Validation, API Testing, and ETL processes using Python libraries like Pandas. If you have 4 to 10 years of experience, this is a high-growth opportunity.
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About Cognizant
Cognizant (NASDAQ: CTSH) is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. It is consistently listed among the most admired companies in the world.
Job Overview
| Category | Details |
|---|---|
| Role | Python Automation Tester (Testing) |
| Company | Cognizant Technology Solutions |
| Experience | 4 to 10 Years (Mid-Senior Level) |
| Education | B.E / B.Tech / M.Tech / MCA |
| Employment Type | Full-time / Hybrid |
| Location | Chennai, Tamil Nadu, India |
Key Responsibilities
- Data Validation: validating large datasets using Python libraries.
- API Automation: Creating automation scripts using the
requestslibrary. - CI/CD Integration: integrating tests with Jenkins or GitHub Actions.
- Database Testing: Writing advanced SQL queries for backend validation.
- Data Analysis: Using Pandas for data manipulation and verification.
Skills & Qualifications Required
- Proven experience in Python-based automation.
- Strong Knowledge of Data Validation using Pandas.
- Experience with API Automation (Requests Lib).
- Good Knowledge of SQL and Database testing.
- Familiarity with CI/CD tools like Jenkins.
Estimated Salary / Compensation
| Level | CTC Range (Approx) |
|---|---|
| 4 - 6 Years | ₹8.0 LPA – ₹14.0 LPA |
| 7 - 10 Years | ₹15.0 LPA – ₹22.0 LPA |
Note: Based on market standards for Python Automation.
How to Prepare for Cognizant Role
- Brush up on OOPs: Python Classes, Inheritance, and Polymorphism.
- Practice Pytest: Learn about Fixtures, Decorators, and Markers.
- Data ETL: Understand how to Extract, Transform, and Load data validation rules.
- Resume Tip: Highlight keywords like "Automated Data Validation," "Pandas," and "API Testing".
Cognizant Python Tester – Required Tech Skills Explained
For this Cognizant Python Testing role, candidates are expected to have knowledge of automation, data processing, and backend validation. Below is a simple explanation of each important skill and how you can start learning.
Python "Pandas" for Testing
Pandas is a library usually used for Data Science, but in testing, it is used to read Excel/CSV files and compare them with Database tables automatically to find discrepancies.
- DataFrames & Series
- Reading/Writing CSV/Excel
- Data filtering & cleaning
Learn Pandas basics:
API Automation (Requests Lib)
Instead of using manual tools like Postman, you write Python scripts to hit API endpoints (GET, POST) and verify the response status and JSON body programmatically.
- HTTP Methods (GET, POST)
- Status Codes (200, 404, 500)
- JSON Parsing
Start learning API Automation:
Advanced SQL for Backend Testing
You need to verify that the data shown on the front end matches the data stored in the backend. This requires writing complex SQL queries with joins and aggregations.
- Joins (Inner, Left, Right)
- Group By & Having clauses
- Subqueries
CI/CD (Jenkins)
Continuous Integration involves running your test scripts automatically whenever code is changed. You need to know how to configure Jenkins pipelines to trigger your Python tests.
- Pipeline configuration
- Build triggers
- Analyzing build logs
Note: You are expected to have hands-on experience in writing scripts from scratch, not just running existing ones.
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How to Apply
- Visit the official Cognizant careers page.
- Create your candidate profile.
- Upload your resume highlighting Python & Automation.
- Submit the application for Job ID 00063747613.
| Option | Action / Link | Notes |
|---|---|---|
| Join Telegram Job Channel | Fresher Jobs | Get daily verified job updates |
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| Apply – Cognizant Official | Apply Here | Direct official application page |
| Apply – MongoDB Support Engineer | Apply Here | Fresher & Experienced (₹18 LPA) |
| Apply – Scopely Engineering Intern | Apply Here | Engineering Internship 2025 |
| Apply – IBM Technical Support | Apply Here | Internship for Freshers |
| Apply – Metayb Software Fresher | Apply Here | MERN Stack Developer (Fresher) |
| Apply – Philips Software Intern | Apply Here | Internship Opportunity |
| Apply – CGI Full Stack | Apply Here | Java Full Stack Developer |
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Disclaimer
This post is for informational purposes only. We are not affiliated with Cognizant. Always verify job details on the official careers page.
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