Data Modelling Specialist

Recruiter:

Mindworx Consulting

Job Ref:

JNB008074/MNT

Date posted:

Tuesday, May 12, 2026

Location:

Johannesburg, South Africa

SUMMARY:
Purpose summary:

The Data Modelling Specialist is responsible for designing, maintaining, and optimising the firm’s data models to enable reliable, scalable, and performant data analytics, reporting, and integration. This role ensures that data is modelled according to established architectural principles, governance standards, and business needs, supporting both operational and strategic decision-making

POSITION INFO:
Job description:
Data Model Design and Development:

Design logical and physical data models in line with the firm’s modelling standards, including Kimball star schema principles and medallion architecture
Create and maintain enterprise-wide canonical models and reusable data artefacts to support consistency across projects
Optimise data models for performance, scalability, and ease of use by BI, analytics, and reporting tools

Standards and Governance Alignment:

Ensure data models adhere to agreed naming conventions, metadata standards, and governance frameworks
Collaborate with data governance, architecture, and engineering teams to ensure models align with business rules, data quality standards, and security classifications
Maintain a centralised model repository and ensure version control of all modelling artefacts

Documentation Maintenance:

Create and maintain comprehensive documentation for data models, including data dictionaries, ERDs, and metadata
Regularly update models to meet evolving business needs and provide training to legal and business stakeholders on data model functionality

Business Requirements Translation:

Engage with business analysts, data stewards, and stakeholders to understand requirements and translate them into fit-for-purpose data models
Conduct workshops to validate model designs with business users and technical teams

Analytical and Problem Solving:

Advanced skills in assessing complex data requirements, identifying potential conflicts in data usage, and ensuring data security in model design

Continuous Improvement:

Evaluate and recommend modelling tools, techniques, and patterns that enhance the usability, performance, and maintainability of data assets
Actively contribute to the firm’s data architecture and analytics roadmap

Project and Change Management:

Proficient in project management tools (e.g., JIRA) for managing data modelling tasks and facilitating communication across IT, legal, and compliance teams

Data Quality and Integrity:

Work closely with data quality teams to ensure data models support accurate, complete, and consistent data
Perform impact analysis for changes to existing models and communicate implications to stakeholders

Technical Collaboration:

Partner with data engineers to ensure data pipelines are designed to populate models accurately and efficiently
Provide technical guidance to analytics developers and report writers on optimal model usage
Ability to design data models compatible with BI tools (e.g., Power BI) for effective reporting, analytics, and operational insights

Required qualification:

4-year Degree / NQF level 7

Years of experience:

Up to 6 years

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