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Cognizant Linkedin · Posted 7d ago

Snowflake Developer

Spain

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Indexed description

As a Senior Snowflake Engineer, you will play a leading role in one of the most ambitious data modernisation programmes in the financial sector — driving the full migration from Teradata to Snowflake for a top-tier Scandinavian bank. Come and transform the future with us.

HIGH QUALITY PROJECTS | LATEST TECHNOLOGIES | REMOTE WITHIN SPAIN | LEARNING & GROWTH

About The Role

We are looking for a Senior Snowflake Engineer to lead the design, build and delivery of our client's Teradata-to-Snowflake migration. You will own end-to-end pipeline architecture using IDMC, optimise performance and cost at scale, and ensure data quality, security and governance across the programme. This is a high-impact, client-facing role within a fast-paced, cross-functional delivery team operating in the BFSI domain.

Key Responsibilities

  • Lead the Teradata → Snowflake migration lifecycle: assessment, planning, execution and cutover readiness.
  • Design Snowflake data models and objects; architect and build ETL/ELT pipelines using IDMC (preferred).
  • Optimise performance and cost: warehouse sizing, clustering/partitioning and query tuning.
  • Implement Snowflake capabilities including Snowpipe, Streams/Tasks and Time Travel.
  • Manage secure access: RBAC, encryption, storage integrations and external stages.
  • Rewrite and optimise Teradata SQL; convert Teradata-specific functions to Snowflake equivalents.
  • Automate operational tasks using Python and/or Shell scripting.
  • Perform source-to-target data reconciliation and validate transformation logic.
  • Document solutions, data flows and design decisions; communicate progress to stakeholders.

Required Skills & Experience

  • Strong Snowflake architecture expertise and hands-on SQL skills (performance tuning and optimisation).
  • Proven Teradata SQL knowledge including utilities, functions and migration/conversion experience.
  • Solid background in data warehousing and ETL/ELT design; hands-on IDMC experience preferred.
  • Deep knowledge of Snowflake features: Snowpipe, Streams/Tasks, Time Travel/Cloning, micro-partitions, stages, file formats and RBAC.
  • Cloud platform experience: Azure, AWS or GCP.
  • Scripting proficiency in Python and/or Shell for automation and pipeline support.
  • CI/CD and DevOps practices applied to data pipelines.

Nice To Have

  • BFSI domain experience.
  • Informatica PowerCenter background.
  • SnowPro certification.
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