Senior Machine Learning Engineer

Working at Atlassian

Atlassians can choose where they work—whether in an office, from home, or a combination of the two.

That way, Atlassians have more control over supporting their family, personal goals, and other priorities.

We can hire people in any country where we have a legal entity.

Atlassian is seeking a Senior Machine Learning Engineer to join AI Context team within broader Rovo + AI organisation.

You will help build the agentic LLM harnesses that power high-visibility Rovo AI features and enable contextually aware, intelligent experiences for every user and agent.

Your future team

You will join AI Context, a team of software and machine learning engineers working across Sydney, Melbourne, Brisbane, and the US West Coast.

The team has a mix of SWEs and MLEs and partners closely across Rovo + AI and product teams.

We build experiences around insights, modelling, and personalisation that help Atlassian products deliver relevant context to users and AI agents.

We give engineers a high degree of ownership and autonomy, protect focus time through asynchronous collaboration, and use lightweight, ad hoc alignment when needed.

What you’ll do

As a Senior Machine Learning Engineer, you will design, build, ship, and operate agentic LLM harness solutions for existing and new AI features.

You will improve quality and reduce cost across production LLM systems, build robust evaluation capabilities, and contribute to areas such as fine-tuning and model serving.

You will help set the long-term technical direction for LLM harness engineering, incorporating rapid advances from the research community and industry.

You will navigate complex systems, identify practical paths from current constraints to a durable architecture, and propose and execute improvements end to end.

You will act as a thought partner to Engineering Managers and Heads of Engineering, influence technical direction across stakeholder teams, and lead small virtual squads that own critical components.

You will also coach junior engineers and help the team achieve its key results.

Your background

On the first day, we’ll expect you to have

Bachelor’s or Master’s degree, preferably in Computer Science or a related field, or equivalent practical experience