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Python, Pyspark, AWS

00066815781

Skill: Python, Pyspark, AWS

Exp: 6 to 12 years

Location: Pune

Job Summary

We are seeking a skilled Python + PySpark + AWS Developer to design, develop, and maintain scalable data engineering solutions. The role involves building high-performance ETL pipelines, processing large datasets, and integrating with AWS cloud services to support enterprise analytics and reporting needs.

Key Responsibilities

  • Design, develop, and optimize ETL pipelines using PySpark and Python.
  • Work with large-scale datasets to perform data cleansing, transformation, and aggregation.
  • Integrate with AWS services such as S3, Glue, EMR, Lambda, Redshift, Athena, Kinesis.
  • Implement data lake and data warehouse solutions on AWS.
  • Ensure data quality, consistency, and security across all processing stages.
  • Collaborate with data scientists, analysts, and business stakeholders to deliver data solutions.
  • Monitor, troubleshoot, and optimize data workflows for performance and cost efficiency.
  • Follow best practices for code versioning, CI/CD, and cloud resource management.
  • Write unit tests and maintain documentation for all developed solutions.

Required Skills & Qualifications

  • Strong programming skills in Python (data manipulation, APIs, automation).
  • Hands-on experience with PySpark for distributed data processing.
  • Proficiency in AWS cloud services (S3, Glue, EMR, Lambda, Redshift, Athena, IAM).
  • Solid understanding of SQL and relational database concepts.
  • Experience with data lake and data warehouse architectures.
  • Knowledge of ETL/ELT design patterns and best practices.
  • Familiarity with Git and CI/CD tools (e.g., Jenkins, GitHub Actions).
  • Strong problem-solving and debugging skills.
  • Bachelor’s degree in Computer Science, Information Technology, or related field.

Preferred Skills

  • Experience with streaming data (Kafka, Kinesis).
  • Knowledge of Docker and containerized deployments.
  • Familiarity with Terraform or CloudFormation for infrastructure as code.
  • Exposure to machine learning pipelines in a big data environment.
  • Understanding of data governance and compliance standards.

Work Environment

  • Location: Onsite / Remote / Hybrid (as per company policy)
  • Team: Works closely with data engineers, analysts, and cloud architects.
  • Tools: AWS Cloud, Spark, Python, SQL, Git, CI/CD pipelines.

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.

Your path to Cognizant

Here’s what you can expect from our hiring process. Please keep in mind that it may vary by role and location. Explore our FAQs to learn more.

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Step 1: Apply to the right opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

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Step 2: Connect with your recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

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Step 3: Show off your skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

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Step 4: Decision time

Our team will then review each candidates’ potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us—but you can count on us to keep you updated.

CAN Brigitte
Cognizant is great for those wanting to make the world a better place, as we create solutions with top technology partners to address complex problems for our clients.
Brigitte Roy Director of Strategy Alliances
CAN Rahul
I’m supported by motivational leaders who empower me to grow in my career through learning programs, industry conferences and internal job moves. I’m proud of the career progression I’m making here.
Rahul Sathe Principal Product Architect – Insurance
Can Amita
The moment I joined Cognizant, I felt like I belonged. I was heard and empowered to challenge ideas—and I still am to this day.
Dr. Amita Oppal Gill Service Line Sales Manager
1 (2)
Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.
Debashish Mishra SAP MM Developer

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