Snowflake Developer

Cognizant Technology Solutions Sweden AB; Stockholms län; On-site; SEK 700,000 - 950,000; Full time

Job summary

Cognizant Technology Solutions Sweden AB is seeking a Snowflake Developer to design, build, and optimize data pipelines using Snowflake and IDMC. You will migrate data from Teradata to Snowflake, create scalable data models, and ensure data quality.

The role involves collaborating with data architects and business stakeholders, implementing governance and security, and delivering reliable ETL/ELT workflows in a fast-paced environment.

Qualifications

• Strong hands-on experience with Snowflake cloud data warehouse.
• Experience migrating data from Teradata to Snowflake with validation.
• Proficient in SQL and scripting for automation (Python, Shell).
• Knowledge of Snowflake features: Time Travel, micro-partitions, Streams, Tasks.

Responsibilities

• Analyse business requirements and translate them into technical solutions.
• Design, develop, and implement ETL/ELT pipelines to migrate data from Teradata to Snowflake.
• Optimize migration processes ensuring data integrity, accuracy, and performance.
• Create and manage Snowflake objects (tables, views, schemas, stages, procedures).
• Implement partitioning, clustering, and performance tuning strategies.
• Develop reusable scripts for automation of migration tasks (Python, Shell).
• Document migration processes, best practices, and technical solutions.

Skills

Snowflake

ETL/ELT development

SQL

Python

Shell scripting

Data modeling

Data governance

CI/CD

Teradata migration

Tools

dbt cloud

Fivetran

Databricks

Snowpipe

Job description

Snowflake Developer is responsible for designing, building, and optimizing data pipelines using Snowflake and IDMC. Build and maintain ETL/ELT workflows and data pipelines using Snowflake and IDMC to process large datasets efficiently. Design data models, create and maintain views, stored procedures, and other database objects in Snowflake, optimize data storage, and ensure scalability in Snowflake. Implement data governance, access controls, and encryption to protect sensitive information.

Key Responsibilities

• Analyse business requirements and translate them into technical solutions.
• Design, develop, and implement ETL/ELT pipelines to migrate data from Teradata to Snowflake.
• Optimize migration processes ensuring data integrity, accuracy, and performance.
• Create and manage Snowflake objects (tables, views, schemas, stages, procedures).
• Implement partitioning, clustering, and performance tuning strategies.
• Implement and manage Snowflake features such as Snowpipe, Streams, Tasks, and Time Travel
• Develop and maintain data models, schemas, and stored procedures in Snowflake SQL
• Monitor and tune Snowflake performance, including warehouse sizing and query optimization and ensure efficient resource utilization and cost optimization.
• Manage external stages, storage integrations, data security, access controls, and role-based permissions in Snowflake
• Automate data ingestion from various sources using Snowflake connectors and external stages using different file format, code pages, and any integration with Saas tools (e.g. dbt cloud, Fivetran, Databricks etc).
• Rewrite and optimize Teradata SQL scripts, macros, and stored procedures for Snowflake compatibility.
• Develop reusable scripts for automation of migration tasks (Python, Shell etc.).
• Conduct data reconciliation between Teradata and Snowflake post-migration.
• Work closely with data architects, analysts, and business stakeholders to understand requirements
• Document migration processes, best practices, and technical solutions.

Technical Skills

• Strong hands‑on experience with Snowflake cloud data warehouse.
• Knowledge of Snowflake features: Time Travel, Cloning, Micro‑partitions, Streams & Tasks.
• Hands on experience in Snowflake features like external stages, Snowpipe, storage integration, File Formats, RBAC etc.
• Strong experience with SQL and various database technologies (Oracle, Teradata SQL Server, PostgreSQL, etc.).
• Knowledge of DevOps and CI/CD practices for data pipelines and workflows.
• Experience in data engineering or database development, particularly with data migrations.
• Experience in different batch processing and data loading/transformation strategies.
• Proficiency in scripting for automating regular or repeating task (python, shell scripting etc).
• Understanding of Teradata architecture, SQL, and utilities (BTEQ, FastLoad, MultiLoad, TPT).
• Experience in analysing and converting Teradata‑specific functions to Snowflake equivalents.
• Strong problem‑solving and analytical skills.
• Snowflake SnowPro Certification is a plus.
• Experience in banking and financial services will be preferred.

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, state or local laws.