Data Modeller

Corevia Staffing; California (MO); Hybrid; USD 100,000 - 160,000; Full time

Job summary

Corevia Staffing is seeking an experienced Data Modeller to design, develop, and maintain enterprise data models that support BI, analytics, reporting, and operations.

The role translates business requirements into conceptual, logical, and physical models, ensuring data quality, governance, and scalable architectures. Collaboration with analysts, data engineers, solution architects, DBAs, and stakeholders is essential.

Qualifications

• Strong understanding of conceptual, logical, and physical data modelling.
• Strong knowledge of relational data modelling and ER modelling.
• Experience with dimensional data modelling.
• Experience designing Star and Snowflake schemas.
• Understanding of slowly changing dimensions (SCD), fact tables, dimension tables, and surrogate keys.

Responsibilities

• Strong SQL skills.
• Good knowledge of relational databases such as: PostgreSQL, Oracle, SQL Server, MySQL, Snowflake.
• Understanding of database performance, indexing, partitioning, and query optimization.
• Knowledge of database constraints and referential integrity.

Skills

Data modelling

SQL

Data warehousing

ETL/ELT

Cloud data platforms

Education

Bachelor's or Master’s degree in CS/IT/Data Management

Tools

Erwin Data Modeler

ER/Studio

SAP Power Designer

Oracle SQL Developer Data Modeler

Sparx Enterprise Architect

Lucidchart

Microsoft Visio

Job description

Title: Data Modeller

Work Location: SFO - Hybrid

Project Duration: 1 year, with possible extension

Role Overview

We are looking for an experienced Data Modeller to design, develop, and maintain enterprise data models that support business intelligence, analytics, reporting, and operational applications. The role involves translating business requirements into conceptual, logical, and physical data models while ensuring data quality, consistency, scalability, and governance.

The Data Modeller will work closely with Business Analysts, Data Engineers, Solution Architects, Database Administrators, and business stakeholders to create robust and scalable data architectures.

Key Responsibilities:

• Strong understanding of Conceptual, Logical, and Physical Data Modelling.
• Strong knowledge of Relational Data Modelling and ER Modelling.
• Experience with Dimensional Data Modelling.
• Good understanding of normalization and denormalization techniques.
• Experience designing Star and Snowflake schemas.
• Understanding of slowly changing dimensions (SCD), fact tables, dimension tables, and surrogate keys.

Database & SQL

• Strong SQL skills.
• Good knowledge of relational databases such as:
  • PostgreSQL
  • Oracle
  • SQL Server
  • MySQL
  • Snowflake
• Understanding of database performance, indexing, partitioning, and query optimization.
• Knowledge of database constraints and referential integrity.

Data Warehousing & Cloud

• Experience with data warehouse and data lake concepts.
• Understanding of ETL/ELT processes and data integration.
• Experience with one or more cloud data platforms such as:
  • AWS
  • Microsoft Azure
  • Google Cloud Platform
• Exposure to platforms such as Snowflake, Databricks, Azure Synapse, BigQuery, or Amazon Redshift is desirable.

Data Modelling Tools

Experience with one or more of the following:

• Erwin Data Modeler
• ER/Studio
• SAP Power Designer
• Oracle SQL Developer Data Modeler
• Sparx Enterprise Architect
• Lucid chart
• Microsoft Visio

Education & Experience

• Bachelor's or master's degree in computer science, Information Technology, Data Management, or a related field.
• 5 10 years of experience in data modelling, database design, data warehousing, or related roles.
• Experience working on enterprise data platforms and large-scale data projects.
• Experience working in Agile/Scrum environments is preferred.