Job Description
Our Opportunity:
The Chewy Sponsored Ads team is looking for a Senior Machine Learning Engineer in Bellevue WA to help launch various innovative ads offerings for our sponsored advertisement initiatives. As advertising is a critical component of our e-commerce ecosystem this role will help provide a critical revenue stream for the company!
As a member of our Sponsored Ads development team you will influence technical strategy across product search and discovery as well as the relevance ranking prediction and auction of a large selection of our sponsored ads offering (both onsite and offsite). You'll be at the forefront of leading technology business impact applying machine learning and deep-learning models that will influence selection relevance ranking click-through prediction modelling auction-dynamics keywords recommendation campaign optimization ads channel performance ads performance maximization and wide array of engaging data-science methodologies (including but not limited to LLMs and generative AI).
Sponsored Ads composes a win-win ecosystem for shoppers brand owners and Chewy! Our Pet Parent customers are offered a range of alternative options to help them choose 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 parents) and improve their reach.
Come be part of the Sponsored Ads team's impactful journey at Chewy!
What you'll do:
- Deploy machine learning and data-science to simplify shopping experience for pet-parents to improve reach and discovery of new products of Chewy vendors and helping build a mutually beneficial 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.
- Lead new models from ideation to experimentation and eventually to production delivery to build and 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 high bar on model performance establish applied-science implementation standard methodologies and mentoring junior scientists.
- Deploy solutions at Chewy scale improving overall customer engagement and value for Pet Parents.
- Formalizing proposals and communicating 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 related field or proven experience for at least 3 years crafting optimization and machine learning solutions for large scale applications.
- Ability to understand and apply sophisticated mathematics and DS methodologies.
- Experience in building distributed pipeline tuning optimizing and evaluation.
- 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.
The base salary range for this role is $149000 - $225000.00.
- 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 401k and a new hire and annual equity grant. C08+ positions may also be eligible for annual bonus.
We offer different types of insurance and benefits 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.
Exempt salary 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. 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 or if you need a religious accommodation please contact [email protected].
To access Chewy's California CPRA Job Applicant Privacy Policy please click here.
Top Skills
What the Team is Saying
What We Do
Who We AreChewy is where pet parents find everything they need for life with pets from food to fun to pharmacy. We make pet care easier more informed and more joyful through fast reliable delivery and award-winning 24/7 Customer Care including access to pet health support when it’s needed. Founded in 2011 Chewy combines the convenience of online shopping with a high-touch personalized experience built around the real moments of pet parenthood.Our MissionChewy’s mission is to be the most trusted and convenient destination for pet parents and partners everywhere. What We DoWe support pet parents through the highs lows and everyday moments of the pet parenting journey with:• Pet food treats and daily essentials• Supplies for dogs cats fish birds reptiles equine and small pets• Pharmacy and veterinary services including prescriptions and medications• Pet wellness and health products• Autoship for convenient recurring deliveries• Chewy+ our premium membership offering exclusive savings faster delivery and personalized pet care benefits• 24/7/365 customer support from knowledgeable pet-loving expertsWhat Makes Chewy DifferentChewy is known for industry-leading service deep personalization and our customer-obsessed culture. We combine trust convenience and care and pet parents come to us for: • Exceptional customer care• Human- and pet-centered product and experience design• Fast dependable fulfillment across a nationwide operations network• A mission-driven culture built on empathy trust and passion for petsOur CultureChewy’s culture is built for people who thrive on ownership innovation and impact. We value curiosity creativity and continuous improvement across all our teams. We empower Team Members—our Chewtopians—to learn grow and unleash their full potential in a collaborative supportive mission-driven environment.How We WorkChewy’s Operating Principles guide how we think innovate collaborate and execute. These principles shape our character decision-making and approach to delivering results while connecting our people and culture in support of our mission.Where We WorkChewy headquarters: Plantation FL and Boston MAAdditional hubs: Bellevue WA and Minneapolis MN
Why Work With Us
Why You Should Work at ChewyChewy is a unique fast-growing e-commerce and tech leader where builders creators and problem-solvers shape the future of pet care. Our teams drive innovation in a mission-driven culture that creates real impact for pets and the people who love them.
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Date Posted
04/20/2026
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