Search Platform's mission is to power world-class, trusted cross-product knowledge search and discovery for people and agents across all of Atlassian's product and agentic surfaces. We are looking for a product-minded ML systems leader with deep expertise in applied machine learning and production ML infrastructure.

As a Senior Machine Learning Systems Engineer, you'll be at the intersection of search, machine learning and experimentation. You will work directly with cross-functional teams to deliver innovative, ML-powered solutions that directly impact millions of customers.

Collaborate with your teammates to solve complex problems, from technical design to launch.
Partner across engineering teams to take on company-wide initiatives spanning multiple projects.
Build proof-of-concept (POC) systems and evolve them into reliable, scalable services.
Contribute to best practices in model deployment, monitoring, and evaluation.
Work closely with other ML engineers, backend developers, and product teams to ship end-to-end innovations.
Develop robust feature engineering practices to ingest, process, and serve features for offline training and online inference at scale.
Develop and deploy ranking models to optimize ranking to improve the user experience and achieve business objectives
Develop tools and infra to support rapid experimentation, evaluation, and deployment of prototypes
Optimize latency, throughput, and resource efficiency for search workloads.
Transfer your depth of knowledge from your current language to excel as a Software Engineer
Communicate complex technical concepts clearly to both technical and non-technical stakeholders, creating concise artifacts for peers, partners, and leadership.
Deliver code reviews, documentation & bug fixes within a strong engineering culture
Mentor junior members of the team.

8+ years experience in multiple hands-on software/technology leadership roles, with end-to-end responsibility through the software development lifecycle
Proven experience developing, deploying, and maintaining end-to-end ML systems, from data engineering to model serving and monitoring.
Extensive experience designing and building scalable, fault-tolerant, and high-performance distributed systems for machine learning.
Deep experience implementing MLOps, CI/CD pipelines, and automation for continuous training, deployment, and monitoring of ML models.
Expertise with one or more prominent languages such as Java, Python, Kotlin, Go, or TypeScript is required.
Understanding of SaaS, PaaS, IaaS industry with hands-on experience with public cloud offerings (e.g., AWS, GCP, or Azure)
Knowledge to evaluate trade-offs between correctness, robustness, performance, space and time
Consider the customer impact when making technical decisions

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 .

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.

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.

Senior Machine Learning Systems Engineer - Search