Machine Learning Engineer

Atlassian; Seattle (WA); On-site; USD 178,000 - 233,000; Full time

Benefits offered by this job

Health benefits

Equity

Job summary

Atlassian is seeking an ML Engineer (MLE) to design and ship intelligent search experiences powering Rovo Chat and AI-driven workflows across the Atlassian platform. You will work at the intersection of machine learning, information retrieval, and large language models to deliver search capabilities that help millions of users find, understand, and act on their work data.

You will design, build, and optimize ML-powered search skills, develop production pipelines, and drive end-to-end

Qualifications

• Strong software engineering fundamentals.
• Experience building ML systems at scale.
• Familiarity with search/IR, NLP, or LLM-based systems.
• Ability to operate independently and drive technical decisions.

Responsibilities

• Design, build, and optimize ML-powered search skills that integrate with Rovo's agentic architecture, including query understanding, retrieval, ranking, and answer generation.
• Develop and maintain production ML pipelines for search relevance, leveraging techniques such as reranking, embedding models, and reinforcement learning.
• Drive end-to-end experimentation — from offline evaluation to online A/B testing — to measure and improve search quality metrics.
• Collaborate with product, platform, and applied science partners to translate user needs into scalable ML solutions.
• Contribute to the team's evaluation infrastructure and data tooling to accelerate iteration.

Skills

Software engineering

ML systems at scale

Search/IR

NLP/LLM

Tools

Python

ML frameworks

Job description

Overview

Join the Agentic Search team at Atlassian to build and ship intelligent search experiences that power Rovo Chat and AI-driven workflows across the Atlassian platform. As an MLE on this team, you'll work at the intersection of machine learning, information retrieval, and large language models to deliver search capabilities that help millions of users find, understand, and act on their work data.

Responsibilities

What you'll do:

• Design, build, and optimize ML-powered search skills that integrate with Rovo's agentic architecture, including query understanding, retrieval, ranking, and answer generation


• Develop and maintain production ML pipelines for search relevance, leveraging techniques such as reranking, embedding models, and reinforcement learning


• Drive end-to-end experimentation — from offline evaluation to online A/B testing — to measure and improve search quality metrics


• Collaborate with product, platform, and applied science partners to translate user needs into scalable ML solutions


• Contribute to the team's evaluation infrastructure and data tooling to accelerate iteration

What We're Looking For

• Strong software engineering fundamentals with experience building ML systems at scale


• Familiarity with search/IR, NLP, or LLM-based systems


• Ability to operate independently, drive technical decisions, and deliver impact in a fast-moving environment

Compensation

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 go.atlassian.com/payzones for more information on which locations are included in each of our geographic pay zones. However, please confirm the zone for your specific location with your recruiter. This role may also be eligible for benefits, bonuses, commissions, and equity.

Pay Ranges

• Zone A: $178,200 - $232,650


• Zone B: $160,380 - $209,385


• Zone C: $147,906 - $193,100

Role

In The United States, we have three geographic pay zones. For this role, our current base pay ranges for new hires in each zone are:

Qualifications

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

At Atlassian, we're motivated by a common goal: to unleash the potential of every team. Our software products help teams all over the planet and our solutions are designed for all types of work. Team collaboration through our tools makes what may be impossible alone, possible together.

We believe that the unique contributions of all Atlassians create our success. To ensure that our products and culture continue to incorporate everyone's perspectives and experience, we never discriminate based on race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, veteran, or disability status. All your information will be kept confidential according to EEO guidelines.

To provide you the best experience, we can support with accommodations or adjustments at any stage of the recruitment process. Simply inform our Recruitment team during your conversation with them.

To learn more about our culture and hiring process, visit go.atlassian.com/crh

In line with local law, identity verification (which may include use of biometric data) is a condition of employment with Atlassian for employment fraud purposes.