Senior Machine Learning Engineer at Chewy Boston, MA

Senior Machine Learning Engineer – Chewy, Boston, MA Our Opportunity Advertising is a critical component of the e-commerce ecosystem and provides a critical revenue stream to the company. At Chewy, Sponsored Ads team is looking for a Senior Machine Learning Engineer to help launch various innovative ads‑offerings for Chewy onsite and offsite sponsored ads. As a member to 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 modelling, auction‑dynamics, keyword recommendation, campaign optimization, ads channel performance, ads performance maximization 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. Come be part of the Sponsored Ads team’s impactful journey at Chewy! 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 of Chewy vendors and 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 onsite and offsite advertising solutions. You will lead new models from ideation to experimentation, and eventually to production delivery to improve Chewy products offerings and advance applied science applications. Publish research papers in leading ML/AI/Advertising conferences solving problems for scale using innovative modelling. Establish a high bar on model performance, establish applied‑science implementation best practices and mentor junior scientists. Deploy solutions at Chewy scale improving 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, as well as 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 a related field or proven experience for at least 3 years designing optimization and machine learning solutions for large‑scale applications. 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 Advertisement domain. Experience with multiple techniques that include Predictive Models (Time Series and Regression), Linear Programming, and 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 a huge plus. Experience with ML Services in AWS (SageMaker, Personalize) or equivalent. Compensation & Benefits Our salary range for a Machine Learning Engineer III position is $146,500.00 – $234,500.00. 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. We offer different types of insurance, such as medical/Rx, vision, dental, life, disability, hospital indemnity, critical illness, and accident. We offer 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. Salaried‑exempt team members have unlimited PTO, subject to manager approval. Team members will receive six paid holidays per year. Team members may be eligible for paid sick and family leave in compliance with applicable state and local regulations. Chewy is an 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, as well as any other legally‑protected characteristic. #J-18808-Ljbffr