Staff Machine Learning Engineer

Our Opportunity Advertising is a critical component of the ecommerce ecosystem and provides a critical revenue stream to the company. At Chewy, our Sponsored Ads Technology team based out of Bellevue, WA is looking for a Staff Machine Learning Engineer to help launch various innovative ads‑offerings for Chewy onsite and offsite sponsored ads. As a member of the Sponsored Advertising team, you’ll be part of the core technical team and will influence technical strategy across product search and discovery, relevance and ranking, prediction, and auction of a large selection of sponsored ads offering onsite and offsite. You’ll be at the forefront of driving technology‑driven business impact. Machine learning and deep‑learning models will influence selection, relevance, ranking, click‑through prediction modeling, auction dynamics, keyword recommendation, campaign optimization, ad channel performance, and a wide array of engaging data‑science methodologies including but not limited to LLMs and generative AI. Sponsored Ads creates a win‑win ecosystem for shoppers, brand owners and Chewy. Shoppers (“Pet Parents”) are offered a range of alternate options to help them choose better and learn about new products, new brands, new promotions, and different price points. Brand owners and advertisers get to showcase their product offerings in the front row for their target audience (proud pet owners) and maximize their reach. What you’ll do You will deploy machine learning and data science to simplify the shopping experience for pet‑parents, to maximize reach and discovery of new products from Chewy vendors, and to help create a win‑win ecosystem. Directly influence and collaborate with Product and Engineering leaders to evolve solutions using applied science to improve selection, ranking, relevance, deal‑offerings, click‑through prediction models, dynamic bidding, and auction algorithms for Chewy’s onsite and offsite advertising solutions. You will lead new models from ideation to experimentation, and eventually to production delivery to improve Chewy product offerings and advance applied science applications. Publish research papers in leading ML/AI/Advertising conferences, solving problems for scale using innovative modeling. Establish a high bar on model performance, establish applied‑science implementation best practices, and mentor junior scientists. Deploy solutions at Chewy scale to improve overall customer engagement and value for Pet Parents. Formalize proposals and communicate verbally and in writing to Chewy Senior Leadership and business customers with varying levels of technical knowledge, educating them about our research and sharing insights and recommendations. What You’ll Need An advanced degree (M.S., PhD, or equivalent experience) in Operations Research, Statistics, Applied Mathematics, Data Science or related field, or proven experience for at least 3 years designing optimization and machine learning solutions for large‑scale applications. 8+ years of experience working in Machine Learning. Ability to understand and apply sophisticated mathematics and data‑science methodologies. Experience building distributed pipelines, tuning, optimizing, and evaluating models. Experience with Sponsored Ads or Advertising domain. Experience with multiple techniques including predictive models (time series and regression), linear programming, classification, search, ranking, or large‑scale embeddings. Ability to translate complex data sets and research into simple business recommendations. Bonus Experience in e‑commerce or retail. Prior experience in Advertising systems. Experience with ML services in AWS (SageMaker, Personalize) or equivalent. Salary & Benefits The base salary range for this role is $186,500 - $297,500. The specific salary offered to a candidate may be influenced by a variety of factors including but not limited to the candidate’s relevant experience, education, and work location. In addition, this position is eligible for 401(k) and a new‑hire and annual equity grant. C08+ positions may also be eligible for an annual bonus. We offer a comprehensive benefits package, including medical, Rx, vision, dental, life, disability, hospital indemnity, critical illness, and accident insurance; parental leave; family services benefits; backup dependent care; flexible spending accounts; telemedicine; pet adoption reimbursement; employee assistance program; and many discounts including 10% off pet insurance and 20% off at Chewy.com. Exempt salary team members have unlimited PTO, subject to manager approval. Team members will receive six paid holidays per year and may be eligible for paid sick and family leave in compliance with applicable state and local regulations. Equal Opportunity Statement Chewy is a committed equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, ancestry, national origin, gender, citizenship, marital status, religion, age, disability, gender identity, results of genetic testing, veteran status, or any other legally protected characteristic. If you have a disability under the Americans with Disabilities Act or similar law, and you need an accommodation during the application process or to perform these job requirements, please contact View email address on click.appcast.io. If you have a question regarding your application, please contact View email address on click.appcast.io. #J-18808-Ljbffr