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Senior Software Engineer - Python with Snowflake

NielsenIQ · Chennai, Tamil Nadu, India

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Our Technology teams are working on our new validation platform. Our clients around the world rely on data and insights to innovate and grow. As a Senior Engineer, you’ll be part of a team of smart, highly skilled technologists who are passionate about learning and supporting cutting-edge technologies such as Snowflake Tasks, Streams, Pipes (Snowpipe), External Tables, components: Azure: Blob Storage, ADLS, Functions, ADF, Purview Qualifications6–10 years of professional experience in Data Engineering. Strong expertise in Python (pandas, asyncio, OOP, typing, packaging, pytest). Hands-on experience with Snowflake at enterprise scale. Experience with orchestration tools (Airflow/ADF/Prefect/Step Functions). Advanced SQL skills—optimizing complex joins, window functions, CTEs, and performance tuning. Strong cloud background: Azure Deep understanding of data warehousing concepts: dimensional modeling, star schemas, data marts, CDC/SCD, modeling for high-volume pipelines CI/CD experience with GitHub Actions/Azure DevOps/GitLab CI. Experience with IaC tools like Terraform/Bicep. Strong understanding of DevSecOps practices: secrets management, IAM design, vulnerability scanning, zero trust principles Excellent communication and stakeholder management skills. Experience with dbt (models, tests, exposures). Streaming platform experience (Kafka, Kinesis, Pub/Sub). Experience implementing OpenLineage, Marquez, or other lineage tools. Familiarity with Lakehouse architectures (Delta Lake, Iceberg, Hudi). Understanding of MLOps concepts and feature stores. Knowledge of cost governance and FinOps best practices. Prior leadership/mentorship experience.