Principal Machine Learning Systems Engineer, Search Platform

Requirements

• 10+ years of hands-on experience building models or production ML systems, with deep applied-ML experience in areas such as search, information retrieval, recommendation, NLP, LLMs or content understanding.
• Proven experience designing, building and operating production ML systems across data preparation, representations or features, model development, deployment, evaluation, observability and model or data drift.
• Strong software, distributed-systems and data-engineering depth, including large-scale processing, indexing, failure recovery, schema evolution, scalability and cost.
• A track record of technical innovation: evaluating new research or industry techniques, proving their value through rigorous experiments and turning successful ideas into reliable production capabilities.
• Strong product judgment: ability to discover the real customer problem, define measurable outcomes and choose appropriately among rules, classical ML, deep learning and LLM-based approaches.
• Experience leading across ambiguous, multi-team initiatives, including setting direction, influencing senior engineers and developing other technical leaders.

Benefits & Perks

• Atlassian offers a wide range of perks and benefits designed to support you, your family and to help you engage with your local community. Our offerings include health and wellbeing resources, paid volunteer days, and so much more. To learn more, visit go.atlassian.com/perksandbenefits .

About Atlassian