Snowflake Developer

Cognizant Technology Solutions Sweden AB; Stockholms kommun; On-site; SEK 700,000 - 1,000,000; Full time

Job summary

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

You will collaborate with data architects, analysts, and business stakeholders, ensuring high performance and cost efficiency of data workloads.

Qualifications

• : Strong hands-on experience with Snowflake data warehouse and related features.
• : Experience migrating data from Teradata to Snowflake and designing scalable data models.
• : Proficiency in SQL and data lineage, governance, and security controls.
• : Familiarity with SaaS data integration tools and Python scripting for automation.

Responsibilities

• Analyse business requirements and translate them into technical Snowflake solutions.
• Design, develop, and implement ETL/ELT pipelines for Teradata-to-Snowflake migrations.
• Optimize migration processes for data integrity, performance, and cost.
• Create and manage Snowflake objects: tables, views, schemas, stages, procedures.

Skills

Snowflake

ETL/ELT pipelines

SQL

Teradata to Snowflake migration

Data modeling

Performance tuning

Data governance

Python scripting

RBAC & security

Tools

dbt Cloud

Fivetran

Databricks

Snowflake connectors

Shell scripting

Job description

Snowflake Developer

Responsible for designing, building, and optimizing data pipelines using Snowflake and IDMC. Build and maintain ETL/ELT workflows and data pipelines 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. 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, ensuring 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 with different file formats, code pages, and integrations with SaaS tools (e.g., dbt cloud, Fivetran, Databricks).
• 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 with 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 tasks (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 is preferred.

Equal Opportunity Employer

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.