Senior Software Engineer

As a Senior Software Engineer (Software Engineer III), you will join Grainger's Product Associations & Recommendations team, helping shape how customers discover the right products on Grainger.com. The team is responsible for the systems that define product relationships and power recommendations, from the workstation tooling used to author associations to the APIs that serve real-time recommendations across Grainger’s platforms. We also own critical publishing platforms that connect product data and customer experiences across Grainger.com. A key focus of our work is modernization. We are building greenfield systems designed to replace aging legacy infrastructure, delivering scalable, maintainable solutions that support Grainger's long-term growth. Engineers on our team work across the full stack with a backend focus, building Kotlin and Java services, APIs, and data-driven solutions while partnering closely with product, machine learning, and frontend teams. We take pride in writing well-tested, production-ready code that delivers meaningful customer impact. As a Senior Engineer, you will lead projects that move the needle for Grainger’s business. You will have substantial autonomy to solve complex problems, work through ambiguity, and help establish project-level direction while delivering high-quality software. Success in this role means balancing technical execution with collaboration, helping move initiatives from design and discovery through implementation and delivery. You will report to the Engineering Manager of Product Associations and Recommendations.