> Markdown version of [/jobs/ext/3028888-senior-ios-developer](https://www.wearedevelopers.com/jobs/ext/3028888-senior-ios-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior iOS developer

- **Company:** GRAINGER, INC.
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $112,900.0 - $188,100.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Adobe InDesign, Application Programming Interfaces (APIs), Amazon Web Services, IOS Applications, Build Automation, Unit Testing, C++ (Programming Language), Cloud Computing, Continuous Delivery, Continuous Integration, Software Debugging, Github, Mobile Application Software, Performance Tuning, Software Engineering, Strategies of Testing, Trunk-based Development, Test-Driven Development (TDD), Swiftui, Delivery Pipeline, Backend, Containerization, Kubernetes, Deployment Automation, Production Code, Integration Frameworks, Front End Software Development, Splunk, Software Version Control, Docker
- **Published:** September 22, 2026
- **Apply:** https://diversityjobs.com/candidate/trackback_apply?vacancyId=[vacid]

## About the Role

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'llpartner 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 deepexpertisein nativeiOSdevelopment 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 H1Bvisastatus) should not apply. Only individuals authorized to work in the United States now and for the foreseeable future will be considered for this position., * 3+ years of professional experience in software engineering with a strong focus onnativeiOSapplicationdevelopment.

 * Experience building component-based architectures.

 * Proven ability to drive engineering quality through unit testing, shared ownership, and clean code practicesusing tools such asXCTest, Swift Testing,XCUITest,orEspresso

 * Experience collaborating across teams to implement observability standards that support production readiness, faster debugging, and proactive system health monitoring using tools likeDataDog, 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), witha strongunderstanding of deployment pipelines and version control workflows.

 * Proventrack recordof 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).

## Description

* Design and develop responsive, accessible, and performant UI applications usingSwift,SwiftUI

 * Collaborate in the design and development of APIs that support the mobile application,leveragingPython.

 * Partner withArchitectsand 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, includingcomponentreusability, separation of concerns, and performance optimization.

 * Practice Swift's modern concurrency features to integrate, test, and execute requirements for application features.

 * Apply your knowledge of C++ integration techniques to enable Swift interoperability.

 * 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,resilienceand security.