* Americas * Engineering \& Data **About the role** ------------------ Every day, millions of people search for products across Shopify's ecosystem. These aren't just queries—they're dreams, businesses, and livelihoods hinging on whether someone finds the perfect vintage jacket or the exact drill bit they need. The Search Relevance team is at the heart of making that magic happen, tackling some of the industry's toughest challenges at scale. As a Senior Staff Machine Learning Engineer specializing in Search Relevance, you'll be tasked with designing and implementing AI\-powered features using the latest LLM advances and vector matching technologies. You’ll work to improve retrieval quality with query rewriting and expansion and drive innovations that align search results with actual buying behavior, impacting millions globally. **Key Responsibilities:** * Designing, implementing, and refining machine learning algorithms that improve the relevance of search results. * Analyzing large sets of data, such as user interaction logs and search query trends, to identify opportunities in search relevance. * Collaborate closely with data scientists and the Foundation Models team to productionize SOTA models aiming at improving search relevance. * Working closely with product managers and other engineering teams to align on the overall goals of the search product and ensure cohesive integration of new features. * Actively participating in the design, development, and deployment of end\-to\-end search relevance solutions. * Solve high\-impact users problems within search relevance engineering, offering hands\-on technical leadership to other ICs. * Mentor engineers and data scientists, fostering a culture of innovation and technical excellence. **Qualifications:** * Experience solving high value problems at the organization level * Expertise in relevance engineering and recommendation systems, with competence in building search backend before. * End\-to\-end experience in training, evaluating, testing, and deploying machine learning models at scale. * Proficiency in Python, C\+\+, shell scripting, and streaming and batch data pipelines. * Experience with running machine learning in parallel environments (e.g., distributed clusters, GPU optimization). * Experience with statistical methods, pre\-training and post\-training models like BERT, and familiarity with Pytorch. * Demonstrable experience in building better evaluation metrics that drive search relevance improvements. * Strong mathematical and computer science fundamentals, with a problem\-solving mindset that thrives on challenges * Excellent communication skills and the ability to work in a fast\-paced, collaborative environment. * Ability to anticipate future technical challenges and innovate solutions proactively. **Why Join the Search Relevance Team?** * Influence and improve one of the largest search indices in commerce, unifying over a billion products. * Be part of a collaborative environment, working with diverse teams like Product \& Tooling, Foundation Models, and Catalogue to foster cross\-functional innovations. * Contribute to groundbreaking projects that enable AI\-powered shopping experiences and support innovative commerce via intelligent agents and answer engines. *At Shopify, we pride ourselves on moving quickly—not just in shipping, but in our hiring process as well. If you’re ready to apply, please be prepared to interview with us within the week. Our goal is to complete the entire interview loop within 30 days. You will be expected to complete a pair programming interview, using your own IDE.* *This role may require on\-call work.* **Ready to redefine e\-commerce through AI innovation? Join the team that’s making commerce better for everyone.** **About Shopify** ----------------- Opportunity is not evenly distributed. Shopify puts independence within reach for anyone with a dream to start a business. We propel entrepreneurs and enterprises to scale the heights of their potential. Since 2006, we’ve grown to over 8,300 employees and generated over $1 trillion in sales for millions of merchants in 175 countries. This is life\-defining work that directly impacts people’s lives as much as it transforms your own. This is putting the power of the few in the hands of the many, is a future with more voices rather than fewer, and is creating more choices instead of an elite option. **About you** ------------- Moving at our pace brings a lot of change, complexity, and ambiguity—and a little bit of chaos. Shopifolk thrive on that and are comfortable being uncomfortable. That means Shopify is not the right place for everyone. Before you apply, consider if you can:* Care deeply about what you do and about making commerce better for everyone * Excel by seeking professional and personal hypergrowth * Keep up with an unrelenting pace (the week, not the quarter) * Be resilient and resourceful in face of ambiguity and thrive on (rather than endure) change * Bring critical thought and opinion * Use AI tools reflexively as part of your fundamental workflow * Embrace differences and disagreement to get shit done and move forward * Work digital\-first for your daily work Shopifyhttps://www.shopify.com**We hire people, not resumes. If you think you’re right for the role, apply now.** =================================================================================== **First things first** ---------------------- We want to ensure you’re the type of person who will thrive here so we can move you quickly through our hiring process. Before completing the job application, please check all the statements that apply to you below: I care deeply about what I do I am always seeking new (sometimes uncomfortable) growth I thrive on change in an ambiguous environment I get shit done and can keep pace to ship weekly I have a history of being resilient and resourceful I want to make commerce better for everyone It looks like you might not be a great fit for Shopify at this time — while we encourge everyone to apply, we are looking for someone who can meet all these criteria.