Atlassian provides tools to help every team unleash their full potential.
The Role
Lead the design, development, deployment, and scaling of machine learning models and AI systems powering Atlassian products. Responsibilities include architecture design, experimentation, evaluation, collaboration with product and engineering teams, technical mentorship, and contributing to company-wide AI strategy. The role focuses on search, agentic AI, language models, and intelligent product capabilities.
Summary Generated by Built In
Engineering | Seattle, United States | Remote, Remote | San Francisco, United States | Mountain View, United States or Remote
Atlassian is a global leader in team collaboration and productivity software, empowering teams to unleash their potential and achieve remarkable results. Our suite of tools, including Jira, Confluence, Trello, Bitbucket, and Rovo, is trusted by millions of users worldwide to plan, track, and manage their work effectively. At Atlassian, we are dedicated to building innovative tools and technologies that drive the future of work.
We are looking for a Principal Machine Learning Engineer to join our Search & Intelligence organization. The team builds Atlassian's flagship AI products, including agentic search and chat, long-horizon agents, and capabilities that enrich Atlassian's Teamwork Graph. We also develop the frameworks, models, and infrastructure that accelerate AI feature development across the company.
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.
What you'll do
As a Principal Machine Learning Engineer, you will lead the development and implementation of cutting-edge machine learning algorithms and sophisticated models that power AI capabilities across Atlassian's products and services. You will collaborate closely with product, engineering, and analytics teams to translate complex business and customer needs into impactful solutions.
Your responsibilities will span designing system and model architectures, leading rigorous experimentation and evaluation, and providing technical mentorship to emerging ML engineers. Beyond these core responsibilities, you will help shape our AI strategy and ensure its transformative potential is realized across Atlassian.
At Atlassian, we strive to design equitable, explainable, and competitive compensation programs. We follow consistent hiring practices and account for each candidate's skills, knowledge, and experience when setting base pay within the range.
Please visit
Atlassian is a global leader in team collaboration and productivity software, empowering teams to unleash their potential and achieve remarkable results. Our suite of tools, including Jira, Confluence, Trello, Bitbucket, and Rovo, is trusted by millions of users worldwide to plan, track, and manage their work effectively. At Atlassian, we are dedicated to building innovative tools and technologies that drive the future of work.
We are looking for a Principal Machine Learning Engineer to join our Search & Intelligence organization. The team builds Atlassian's flagship AI products, including agentic search and chat, long-horizon agents, and capabilities that enrich Atlassian's Teamwork Graph. We also develop the frameworks, models, and infrastructure that accelerate AI feature development across the company.
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.
What you'll do
As a Principal Machine Learning Engineer, you will lead the development and implementation of cutting-edge machine learning algorithms and sophisticated models that power AI capabilities across Atlassian's products and services. You will collaborate closely with product, engineering, and analytics teams to translate complex business and customer needs into impactful solutions.
Your responsibilities will span designing system and model architectures, leading rigorous experimentation and evaluation, and providing technical mentorship to emerging ML engineers. Beyond these core responsibilities, you will help shape our AI strategy and ensure its transformative potential is realized across Atlassian.
At Atlassian, we strive to design equitable, explainable, and competitive compensation programs. We follow consistent hiring practices and account for each candidate's skills, knowledge, and experience when setting base pay within the range.
Please visit
Skills Required
- Bachelor's or master's degree in computer science or a related field, or equivalent practical experience
- At least five years of relevant industry experience in machine learning, data science, or a related discipline
- Strong programming skills in Python and one or more production languages such as Java, Kotlin, or TypeScript
- Proficiency in SQL and experience with Spark and cloud-based data environments such as AWS or Databricks
- Experience building, deploying, and scaling machine learning models for business applications using large, complex datasets
- Strong communication skills, including explaining data science concepts to diverse audiences and presenting data-driven insights
- Pragmatic, business-focused approach with a high quality standard and ability to apply the 80/20 principle
- Agile mindset and appreciation for continuous iteration, learning, and improvement
- Experience fine-tuning, post-training, and optimizing large language models, embedding models, and ranking models
- Experience developing and evaluating advanced agentic AI systems with tool use, planning, multi-step reasoning, and autonomous task execution
- Experience in consumer or B2C environments, SaaS, or enterprise and B2B products
- Track record of solving ambiguous and complex problems and developing innovative, practical solutions
What the Team is Saying
Tiffany
Engineering Senior Associate, United States
Gautam
Software Engineer, United States
Tygrr
Product Manager, United States
Ashleigh
Frontend Engineer, United States
Jensen
Senior Frontend Software Engineer, United States
Javier
Senior Solutions Engineer, United States
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The Company
What We Do
Atlassian creates teamwork solutions for high-performing teams. Our portfolio of collaboration and work management software products includes Jira, Confluence, Trello, Loom and Rovo. More than 300,000 businesses worldwide rely on Atlassian’s technology, including 80 percent of Fortune 500 companies. Our solutions support various business teams and they help organizations plan, track, and deliver their biggest ideas together.
Why Work With Us
At Atlassian, we believe we can accomplish so much more together than apart — which is why everything from our tooling — to our distributed workforce — to how our teams are structured is rooted in collaboration. Come join us and help unleash the potential of every team.
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Atlassian Teams
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Remote Workspace
Employees work remotely.
Atlassians have flexibility in where they work to support their family, personal goals, and other priorities. Our approach to distributed work allows us to tap into talent beyond our office locations, and to reimagine how work gets done.
Typical time on-site:
None
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