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Tata Consultancy Services · Melbourne

# Senior Data Modeler

Melbourne Senior individual contributor Data & Analytics 

Last seen on Tata Consultancy Services’s official careers site on August 1, 2026; it may have closed since.
[Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/jobs/419335J)

[OpenNash Jobs](https://jobs.opennash.com/) / [Tata Consultancy Services](https://jobs.opennash.com/companies/tata-consultancy-services/) / Senior Data Modeler

## Job description

### Job Description

Roles and Responsibilities:

### Key Responsibilities
- Analyse and document the current-state customer data ecosystem across staging, integration, and consumption layers.
- Trace data lineage from source systems through transformation pipelines into customer data marts.
- Reverse engineer existing BigQuery schemas, transformation logic, and table dependencies.
- Understand and document how customer attributes, metrics, and business rules are derived.
- Identify modelling issues, redundancies, duplication, and inefficient data structures.
- Assess the suitability of current dimensional, denormalized, and analytical data models.
- Create conceptual, logical, and physical data models for customer domains.
- Collaborate with business stakeholders, data engineers, analysts, and architects to validate findings.
- Produce source-to-target mappings and transformation documentation.
- Recommend target-state modelling approaches including dimensional modelling, wide-table strategies, or domain-oriented designs where appropriate.
- Support estimation and roadmap development for customer data mart modernization initiatives.
- Establish traceability between business requirements, customer metrics, and underlying data assets.

### Required Experience
- 8+ years of data modelling and data engineering experience.
- Strong expertise in customer, CRM, loyalty, marketing, or customer analytics domains.
- Hands-on experience with Google BigQuery.
- Proven experience reverse engineering complex data platforms and undocumented environments.
- Strong understanding of:
- Data lineage analysis
- Source-to-target mapping
- Dimensional modelling
- Star schemas
- Denormalized analytical data structures
- Customer 360 architectures
- Experience interpreting complex SQL transformation logic.
- Ability to navigate environments containing hundreds of interconnected tables and datasets.

## At a glance
- Posted by the employer: Not stated
- First seen by OpenNash: Aug 1, 2026
- Last checked: Aug 1, 2026
- Listed for: Under a day
- Location: Melbourne[Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/jobs/419335J)

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