Senior Full Stack Data Engineer

Halcyon Knights; Sydney; Hybrid; AUD 149,000 - 182,000; Full time

Job summary

Halcyon Knights in Sydney is seeking a Senior Full Stack Data Engineer to design scalable Big Data pipelines and deliver full-stack solutions. You will work across frontend and backend applications, building APIs and leveraging AI-assisted coding tools to accelerate development.

The role blends data engineering and application development, with opportunities to influence performance, scalability, and code quality in a hybrid Sydney CBD setting.

Qualifications

• Strong experience with Big Data technologies (Spark/PySpark, Flink, Hadoop or Apache Beam).
• Hands-on Full Stack development across frontend and backend applications.
• Strong Python programming skills.
• Frontend experience with React, Angular, Vue.js or similar.
• Backend experience with Python, Java, Node.js or equivalent.
• Practical experience using AI-assisted coding tools or coding agents.
• Proven experience developing and supporting production-ready applications.

Responsibilities

• Design and build scalable, high-performance Big Data pipelines and processing solutions.
• Develop modern frontend and backend applications using leading technologies.
• Build and integrate APIs across complex applications and data environments.
• Leverage AI coding assistants and agents to accelerate software development.
• Develop production-ready solutions across data engineering and application development.
• Drive technical improvements across performance, scalability and code quality.

Skills

Big Data stack

Full Stack development

Python

Frontend frameworks

Backend development

AI-assisted coding tools

Production‑ready applications

Tools

Docker

Git

CI/CD

Automated testing

Job description

Senior Full Stack Data Engineer – Big Data & Agentic AI

Up to $165k + Super

Sydney CBD | Hybrid working

Permanent, full-time

An exciting opportunity to join a growing global technology consultancy at the forefront of Big Data, Full Stack Engineering and Agentic AI.

This is a fantastic opportunity for a hands‑on Senior Engineer looking to work with cutting‑edge technologies, solve complex technical challenges and play a key role in delivering modern, scalable data and AI solutions.

You’ll work across the full technology stack, combining large‑scale data engineering, application development and emerging AI capabilities. Ideal for someone who thrives on technical variety, enjoys building solutions from the ground up and wants to be part of the rapidly evolving AI landscape.

What you’ll do:

• Design and build scalable, high-performance Big Data pipelines and processing solutions
• Develop modern frontend and backend applications using leading technologies
• Build and integrate APIs across complex applications and data environments
• Leverage AI coding assistants and agents to accelerate software development
• Develop production‑ready solutions across data engineering and application development
• Drive technical improvements across performance, scalability and code quality

What you’ll need:

• Strong experience with Big Data technologies including Spark/PySpark, Flink, Hadoop or Apache Beam
• Hands‑on Full Stack Development experience across frontend and backend applications
• Strong Python programming skills
• Frontend experience with React, Angular, Vue.js or similar
• Backend experience with Python, Java, Node.js or equivalent
• Practical experience using AI‑assisted coding tools or coding agents
• Proven experience developing and supporting production‑ready applications

Nice to have:

• Agentic AI frameworks such as LangChain, LangGraph, Google ADK or MCP
• Experience with LLMs, RAG or multi‑agent systems
• Cloud platforms including AWS, Azure or GCP
• Streaming data and distributed systems
• Docker, Git, CI/CD and automated testing

Why consider this opportunity?

• Work at the intersection of Big Data, Full Stack Development and Agentic AI
• Join an established global technology consultancy with a growing Australian presence
• Gain exposure to emerging AI technologies and modern engineering practices
• Enjoy a diverse technical role with opportunities to work across multiple technologies

If you’re an experienced engineer looking to broaden your technical expertise, work with emerging AI technologies and take on an exciting new challenge, this is an opportunity worth exploring.