AYAN InfoTech are looking for a Lead Data Engineer /Architect to join an exciting project based in Sydney. The role offers you the opportunity to contribute towards an extremely well structured and mature environment, working on sophisticated enhancement projects.
Role: Lead Data Engineer /Architect
Location: Sydney
Contract Duration: 6 months +
Role Summary:
Primary Skills:
Data Modeling, Medallion Architecture (Bronze/Silver/Gold),(3NF, Star Schema), ERD design
Good to Have:
Snowflake, dbt, SQL, Cloud Data Warehousing, BI/Analytics exposure
Role Summary
We are seeking an experienced Data Modeller to design enterprise-grade data models and implement scalable Medallion Architecture for analytical and operational data platforms. The role involves developing conceptual, logical, and physical data models, ensuring high-quality, consistent data structures across the organization.
Responsibilities
* Design and maintain conceptual, logical, and physical data models to support analytical and operational reporting.
* Architect and implement Medallion Architecture (Bronze/Silver/Gold) for structured, governed, and curated data layers.
* Develop normalized (3NF) and dimensional (star/snowflake) models.
* Produce ER diagrams, metadata specifications, and data dictionaries.
* Collaborate with business, analytics, and engineering teams to translate requirements into robust data models.
* Optimize existing data models for scalability, performance, and cost efficiency.
* Validate model designs to support downstream BI tools and machine learning workloads.
* Establish and enforce data modeling standards, naming conventions, and best practices.
* Support engineering teams with schema design, lineage, and transformation logic.
* Work with Snowflake and/or cloud data warehouses to ensure alignment between logical and physical implementation.
Requirements
* Strong experience with dimensional modeling, relational modeling, and data warehousing concepts.
* Demonstrated capability in designing and implementing Medallion Architecture in modern data platforms.
* Proficiency in SQL and understanding of physical database design.
* Experience with modeling tools (Erwin, ER/Studio, Lucidchart, Draw.io, etc.).
* Ability to document data models clearly and communicate technical concepts effectively.
* Exposure to Snowflake, Lakehouse architectures, or cloud-based data platforms.
Contact: 02 9412 4*** for more details.
www.ayaninfotech.com