Job Description

Our Opportunity:

Chewy's Sponsored Ads business is growing rapidly, and we're looking for experienced Senior Backend Engineers to help drive the evolution of our advertising platform. This role focuses on building scalable, high-performance systems that power key ad capabilities for both advertisers and customers. You'll lead backend development efforts, mentor junior engineers, and play a critical role in shaping one of Chewy’s fastest-growing revenue streams.

About You:

As an experienced Software Engineer with a background in backend and full-stack development. You excel in working on backend services with technologies like Python, Java, Kafka, and both SQL/NoSQL databases. You have expertise in CI/CD pipelines (Jenkins), cloud environments (AWS), and authentication services.

Your hands-on experience and track record ensure you can build and ship new applications or features to existing applications, quickly and efficiently.

About the Team:

Launched in 2022, Chewy's Sponsored Ads platform enables vendors to promote their products on-site and offsite, significantly contributing to Chewy’s revenue growth. The team manages both customer- facing and vendor-facing experiences, balancing a startup culture with operational excellence. We are based in Boston and Seattle.

What You'll Do:

• Lead project delivery and system architecture for backend services, while mentoring junior engineers and promoting engineering excellence across the


• Design and implement scalable, low-latency services in Java and Python, powering core advertising capabilities such as auction processing, targeting, and performance


• Develop robust and well-documented RESTful APIs to support campaign management, reporting, and integration with advertiser-facing tools.


• Build resilient systems with strong observability, demonstrating automated testing, monitoring, and CI/CD pipelines using infrastructure-as-code tools like Terraform.


• Collaborate closely with product managers, data scientists, and fellow engineers to build systems that support real-time and asynchronous workflows.


• Drive technical design reviews, conduct code reviews, and lead initiatives to improve platform reliability, performance, and scalability.


• Take ownership of project estimation and delivery, partnering with Team Members to deliver high-impact features that enhance the advertiser and customer experience on the Chewy Ads platform.

What You'll Need:

• Bachelor's degree in Computer Science or related field (or equivalent experience).


• 8+ years of experience as a Software Engineer, with a strong focus on backend development using modern languages and frameworks including Java, Python and SpringBoot


• Proven experience building scalable, highly available


• Experience integrating AI/ML models working alongside Data Science


• Ninja coding and debugging skills


• Passion for data-driven development, observability, and


• Knowledge of professional software engineering practices including coding standards, code reviews, source control, build processes, testing, and operations


• Solid understanding of CS fundamentals: object-oriented design, algorithms, and problem- solving


• Excellent verbal and written communication

Bonus:

• Experience in Ad Tech and/or e-


• Experience with Scrum, XP or other agile


• Familiarity with Test driven


• Familiarity with AWS cloud services, including serverless computing, data processing, and storage solutions.

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