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dbt Data Engineer / Developer (Snowflake)

Cognizant

RemoteWarsaw, Mazowieckie, PolandFull-time
Posted
3 weeks ago
Source
LinkedIn (remote, Europe)
Field
Engineering, Data & Analytics

Skills

CommunicationAnalyticsSnowflakeAzureCI/CDSQLdbtETLGit

Description

Role Overview We are looking for a hands-on dbt Data Engineer / Developer to build, test, and maintain scalable ELT transformation pipelines using dbt, SQL, Snowflake, and modern cloud data platforms. - Design, develop, and maintain dbt models for staging, intermediate, and mart layers. - Build ELT pipelines using SQL, dbt, and Snowflake, including staging, transformation, and data mart layers; exposure to Databricks, BigQuery, Redshift, or Azure Synapse is an added advantage. - Implement dbt tests, documentation, source freshness checks, snapshots, and reusable macros. - Optimize SQL queries and dbt models for performance, reliability, and maintainability. - Work with analysts, business users, and senior data engineers to translate requirements into data models and transformation logic. - Support Git-based development, pull requests, code reviews, CI/CD deployments, and environment management. - Exposure to legacy data warehouse migration or modernization initiatives, preferably involving Teradata to Snowflake migration, including support for SQL conversion, data validation, reconciliation, and defect fixes. - Troubleshoot pipeline failures, data quality issues, and production defects in collaboration with platform and support teams. Required Skills And Experience - Strong experience in data engineering, ETL/ELT development, analytics engineering, or data warehousing. - Strong hands-on experience with dbt Core or dbt Cloud. - Advanced SQL skills with experience in complex transformations and performance tuning. - Good understanding of dimensional modelling, star schema, data marts, and warehouse concepts. - Hands-on experience with Snowflake, including SQL development, warehouse usage, schemas, tables, views, access roles, and performance-aware query design. - Good understanding of Snowflake objects such as databases, schemas, virtual warehouses, stages, file formats, streams, tasks, and secure views. - Good understanding or hands-on exposure to Teradata concepts, SQL, data warehouse objects, BTEQ scripts, stored procedures, views, and migration activities from Teradata to Snowflake. - Experience supporting migration testing, source-to-target validation, record count checks, data quality checks, and comparison of migrated data between Teradata and Snowflake. - Good-to-have exposure to mainframe data sources, including COBOL copybooks, VSAM files, DB2 on z/OS, JCL, batch files, flat files, and mainframe-to-cloud data extraction patterns. - Experience with Git, branching strategies, pull requests, and code review processes. - Strong analytical, problem-solving, communication, and team collaboration skills. _MS1

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dbt Data Engineer / Developer (Snowflake) at Cognizant · JobMatch