Tata Consultancy Services

Data Modelling

Tata Consultancy Services • $120K — $130K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of experience in data modeling and design.
  • Proficient in defining and documenting entities, relationships, and keys.
  • Experience creating and managing fact/event and dimension tables.
  • Strong knowledge of data validation techniques and standards.
  • Familiarity with Databricks and data modeling tools like Erwin.

Responsibilities

  • Define and document data entities and relationships effectively.
  • Create and manage structured tables with standard naming conventions.
  • Implement validation checks to ensure data integrity and quality.
  • Design models optimized for AI and BI performance needs.
  • Maintain version control and update dependencies after schema changes.

Benefits

  • Opportunity for professional development and training.
  • Collaborative team environment with knowledge sharing.
  • Flexible work arrangements to support work-life balance.
Full Job Description
Must Have Technical/Functional Skills

Skills / Requirements:

Define entities, relationships, and keys (primary/foreign keys) and document cardinalities

Specify table grain (row-level meaning) for each fact/event/feature table

Create dimension tables with consistent codes, descriptions, and hierarchy attributes where applicable

Create fact/event tables with measures, timestamps, and join keys to relevant dimensions/entities

Represent time using standard date/time fields and, when needed, effective start/end dates for history

Standardize naming conventions, data types, units, and allowed values (domains) across models

Add metadata and documentation (field definitions, source system, refresh cadence, owner)

Implement basic validation checks (nullability, uniqueness, referential integrity, value ranges)

Design outputs for common access patterns (joins, filters, aggregations) used by OLAP and AI pipelines

Maintain versioning/change history for models and update downstream dependencies when schemas change

Optimize the models for performance of AI/BI use cases

Good understanding of Databricks concepts

Good understanding of tools like Erwin

Salary Range $120,000-$130,000 a year

About Tata Consultancy Services

Tata Consultancy Services (TCS) is an Indian multinational information technology (IT) services and consulting company, headquartered in Mumbai, Maharashtra, India. It is a subsidiary of Tata Group and operates in 149 locations across 46 countries. TCS is the largest Indian company by market capitalization and is ranked 11th on the Forbes Global 2000 list of the world's biggest public companies. TCS is also the second-largest IT services company in the world by revenue and the largest employer of women in India. The company provides services in areas including IT, consulting, and business solutions.
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