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Data Modeler - Medallion Architecture

zyoin
Bangalore
5 - 7 Years

Posted on: 05/12/2025

Job Description

Description :


Key Responsibilities :


- Design and develop Conceptual, Logical, and Physical Data Models based on business requirements, ensuring alignment with data governance and architectural standards.


- Collaborate with business analysts, data engineers, and stakeholders to translate business needs into scalable and maintainable data structures.


- Perform data design, model design, and data profiling to ensure data quality, consistency, and integrity across multiple systems.


- Work with different modeling methodologies including :


- 3NF (Third Normal Form) for operational data stores.


- Data Vault modeling for scalable, auditable enterprise data warehouses.


- Common Data Model (CDM) for standardized data representation across applications.


- Industry domain models (e.g., finance, healthcare, retail) to ensure semantic consistency.


- Design and support implementation of Medallion Architecture (Bronze, Silver, Gold layers) in modern data platforms such as Microsoft Fabric, Azure Synapse, or Databricks.


- Define and maintain metrics and attributes for analytical models and ensure proper dimensional modeling for BI and reporting solutions.


- Support forward and reverse engineering processes to generate physical databases from logical models and derive models from existing databases.


- Collaborate with development teams to ensure model changes are properly implemented and version-controlled.


- Participate in performance tuning and optimization of database structures.


- Maintain documentation and metadata for all data models, ensuring compliance with data governance and architectural best practices.


Technical Skills Required :


- Strong expertise in Conceptual, Logical, and Physical Data Modeling.


- Hands-on experience in Data Design, Data Profiling, and Normalization/Denormalization techniques.


- Practical knowledge of Data Vault, 3NF, and Dimensional Modeling.


- Good understanding of Medallion Architecture (Bronze, Silver, Gold Layers) and its role in data pipelines.


- Familiarity with Common Data Model (CDM) and Industry Domain Models.


- Understanding of Forward Engineering (creating databases from models) and Reverse Engineering (deriving models from existing databases).


- Experience with at least one Data Modeling Tool such as Erwin Data Modeler, PowerDesigner, or SQL Data Modeler.


- Basic to intermediate proficiency in Erwin Data Modeler, including schema generation, version control, and metadata management.


- Familiarity with relational databases (e.g., Oracle, SQL Server, PostgreSQL) and cloud-based data platforms (e.g., Azure Synapse, MS Fabric, Snowflake).


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