Senior Data Engineer - Snowflake & Python Pipelines

Cognizant Technology Solutions Corporation; Buffalo (NY); On-site; USD 100,000 - 135,000; Full time

Job summary

Cognizant Technology Solutions Corporation is seeking a Senior Data Engineer in the United States with expertise in Snowflake and Python to design, build, optimize, and support scalable data pipelines and cloud solutions processing large volumes of structured and semi-structured data.

The role requires hands-on ETL/ELT development, Snowflake warehousing, Python automation, data quality, performance tuning, CI/CD, and production troubleshooting, with mentoring for junior engineers.

Qualifications

• 7+ years of experience in data engineering or related development.
• Hands-on development experience with Snowflake.
• Advanced Python for data processing and automation.
• Advanced SQL skills and large-volume data processing.

Responsibilities

• Design, develop, and maintain scalable ETL/ELT pipelines using Python, SQL, and Snowflake.
• Build ingestion and transformation processes from Oracle, SQL Server, APIs, files and cloud storage.
• Develop and optimize Snowflake databases, schemas, tables, views, stages and procedures.
• Write performance‑oriented SQL queries for analytics workloads.
• Implement data quality, monitoring, and production troubleshooting.

Skills

Snowflake

Python

SQL

ETL/ELT

Data Warehousing

Tools

Git

CI/CD

REST APIs

Job description

Cognizant Technology Solutions Corporation is seeking a Senior Data Engineer in the United States with expertise in Snowflake and Python to design, build, optimize, and support scalable data pipelines and cloud solutions processing large volumes of structured and semi-structured data.

The role requires hands-on ETL/ELT development, Snowflake warehousing, Python automation, data quality, performance tuning, CI/CD, and production troubleshooting, with mentoring for junior engineers.