Senior iOS Software Engineer

You will join the Sales Enablement Mobile Team, contributing to the development of iOS mobile tools that empower our Sellers to better serve the ones who get it done.     As a Senior Engineer on the Sales Enablement Mobile Team, you will play a pivotal role in shaping the mobile user experience and building scalable, high-performance mobile applications that streamline how Sellers engage Customers and their team members while on the go. You’ll partner with cross-functional stakeholders to build, evolve, and modernize Grainger’s digital experience, with a strong focus on quality, performance, and long-term maintainability.     This is a hands-on role requiring deep expertise in native iOS development and Backend-for-Frontend (BFF) architectures, combined with strong technical leadership, mentorship, and collaboration skills.    This position is not eligible for any form of sponsorship now or in the future.  Individuals requiring sponsorship (e.g. OPT or H1B visa status) should not apply. Only individuals authorized to work in the United States now and for the foreseeable future will be considered for this position.    You will Design and develop responsive, accessible, and performant UI applications using Swift, SwiftUI  Collaborate in the design and development of APIs that support the mobile application, leveraging Python.  Partner with Architects and other mobile focused developers, contributing to Architectural Decision Records (ADRs).  Mentor and elevate engineers through technical deep-dives, design reviews, and code walkthroughs.  Drive continuous delivery practices by improving CI/CD pipelines, test strategies, and build automation.  Instrument applications for performance and proactively address tech improvements and system health.  Advocate for and implement best practices in front-end engineering, including component reusability, separation of concerns, and performance optimization. Champion Grainger’s strong engineering culture by modeling sensible defaults: Lead by example in delivering small, iterative stories using trunk-based development. Foster a culture of pairing, shared ownership of quality, and test-driven development (TDD). Promote fast builds, automated deployments, and production-ready code with built-in observability, resilience and security.    You have 5+ years of professional experience in software engineering with a strong focus on native iOS application development.  Experience building component-based architectures.   Proven ability to drive engineering quality through unit testing, shared ownership, and clean code practices using tools such as XCTest, Swift Testing, XCUITest, or Espresso   Experience collaborating across teams to implement observability standards that support production readiness, faster debugging, and proactive system health monitoring using tools like DataDog, Splunk etc.,  Solid understanding of Backend-for-Frontend (BFF) patterns and best practices for designing and securing APIs.  Hands-on experience in CI/CD environments (e.g., GitHub Actions), with a strong understanding of deployment pipelines and version control workflows.   Proven track record of rapidly advancing early-stage iOS applications from concept to production.  Passion for user experience and attention to detail in design execution.  Cloud platform experience (AWS) and containerization basics (Docker, Kubernetes).