Software Engineer III

Chewy

Bellevue, WA

Full Time

Senior

2 days ago

Job Description

About the Role

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.

Key Responsibilities

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

Requirements

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 systems.
Experience integrating AI/ML models working alongside Data Science.
Ninja coding and debugging skills.
Passion for data-driven development, observability, and automation.
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.

Nice to Have

Experience in Ad Tech and/or e-commerce.
Experience with Scrum, XP or other agile methodologies.
Familiarity with Test driven development.
Familiarity with AWS cloud services, including serverless computing, data processing, and storage solutions.

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