Job Description
I'm looking for people who have moved beyond AI demos and are actually shipping things.
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The role:
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A major global travel business has built a small frontier AI team in Brisbane and is hiring a Senior Machine Learning Engineer into it.
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It's deliberately small. Deeply technical. Close to product.
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You'll absolutely experiment with new models, frameworks and techniques, but success isn't a paper or an impressive notebook. It's something people actually use.
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What are they building?
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The team is already shipping production AI and pushing deeper into agentic systems, multi-agent orchestration, MCP, retrieval, ranking and evaluation.
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Millions of customers. Live inventory. Huge supplier ecosystems. Complex commercial rules. Real transactions.
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What happens when agents can understand a traveller's intent, reason across choices, interact with live systems, coordinate specialist agents and progressively execute more of the journey?
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You'll work across:
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Production agentic and multi-agent systems
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Orchestration frameworks, director agents and sub-agents
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MCP servers, tool-use and context environments
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Retrieval, vector search, ranking and embeddings
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Evaluation harnesses, graders and judge models
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Model routing and post-training where it improves the product
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Observability, infrastructure and guardrails for production AI
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Most importantly,



you'll take prototypes through to real production traffic.
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You're not joining a giant AI function to own one microscopic component.
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The team is small enough that you'll influence architecture, product decisions and what gets built next. But behind it sits the data, infrastructure, customers and distribution of a major global organisation.
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Who gets my attention? Builders.
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You'll probably have 5+ years shipping production ML or AI, strong Python and enough software engineering depth to own what you build through deployment and operation.
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You may be deep in Agentic AI, LLMs, Multi-Agent Systems, Retrieval, Ranking, Evaluation, MCP or ML Infrastructure.
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You absolutely don't need every acronym.
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I'd rather see one genuinely difficult system you've built than twelve technologies you've "worked with".
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Solid product instincts matter.
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Engineering judgement matters.
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Evidence that you ship matters most.
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You must have full Australian working rights, and your resume is essential.
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I unfortunately can't promise everyone who emails me a 'quick chat'. What I can do is personally evaluate what you send.
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If this particular role isn't quite right, I'm currently recruiting across around a dozen different kinds of cross-functional agentic AI opportunities in Brisbane, so good people are absolutely worth knowing.

📌 Senior Ai / Machine Learning Engineer (Queensland)
🏢 BLACKROC Contingent
📍 Queensland