Software Engineer III

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 :

Bonus :