Senior Data Engineer

Hydrogen Group; Sydney; On-site; AUD 150,000 - 190,000; Full time

Job summary

Hydrogen Group is seeking a Senior Data Engineer in Sydney to join a 12‑month contract. You will design, develop and implement scalable data solutions across secure pipelines and governance, collaborating with cross‑functional teams to meet real business needs.

You will build end‑to‑end data pipelines in a GCP stack (BigQuery, MySQL) using Python, while partnering with the Data Engineering Lead on data models and quality. Experience with LLMs in data workflows is a plus.

Qualifications

• 7–10 years of experience in a data engineering role.
• Extensive experience building end‑to‑end data pipelines in a GCP environment.
• Strong logical and physical data modelling skills.
• Deep experience in efficient SQL development and query tuning.
• Solid working knowledge of the GCP/BigQuery stack.
• Experience with LLMs in data workflows (desirable).
• Judgement in reviewing AI-generated code in regulated environments.

Responsibilities

• Design and build end‑to‑end data pipelines using GCP, BigQuery, MySQL and Python.
• Partner with the Data Engineering Lead to design, develop and maintain the data model.
• Use AI-assisted development tools to accelerate delivery while maintaining quality and security.

Skills

GCP

BigQuery

SQL development

Data modelling

Python

Data pipelines

AI tooling

Data security

Tools

BigQuery

MySQL

Python

Vertex AI

Job description

Our financial services client is looking for a Senior Data Engineer to join them on a 12 month contract basis. You will collaborate with cross functional teams to design, develop and implement data solutions that are secure, resilient & scalable.

The opportunity
You’ll work alongside cross-functional teams to design, develop and deliver data solutions that are secure, stable and aligned to real business needs. The team is currently building a new data pipeline spanning ingestion, integrated, semantic and application layers, backed by end-to-end data quality governance.

What you’ll do

• Design and build end-to-end data pipelines using GCP, BigQuery, MySQL and Python
• Partner with the Data Engineering Lead to design, develop and maintain the data model
• Use AI-assisted development tools to accelerate delivery while maintaining high standards of quality and security

What you’ll bring

• 7-10 years’ experience in a similar data engineering role
• Extensive experience building end-to-end data pipelines in a GCP environment
• Strong logical and physical data modelling skills
• Deep experience in efficient SQL development, including query performance and tuning
• Solid working knowledge of the GCP and BigQuery stack
• Experience working with LLMs (e.g. Gemini on Vertex AI, OpenAI, Claude) in data workflows, such as prompt design, structured output extraction or building data pipelines that feed LLM-based applications (desirable)
• Sound judgement in reviewing, testing and validating AI-generated code and queries, particularly in a regulated environment

Interested?
If this sounds like you, apply today and we’ll give you a call within 24 hours to talk it through.