Top iOS Developer Jobs in Chicago, IL

Develop and maintain iOS applications using Swift and related frameworks. Design testable mobile code, collaborate with product, design, and backend teams, and participate in API, system design, data modeling, and service integration. Integrate reliable AI/ML-enabled features, troubleshoot performance issues, resolve bugs, and support continuous improvement. The role also involves building scalable applications, optimizing performance, and applying mobile CI/CD practices.

Lead design and delivery of iOS client solutions, collaborate with cross-functional teams, mentor engineers, review code, drive platform initiatives, and advocate mobile best practices while ensuring high-quality Agile delivery.

Lead development and delivery of iOS client solutions, collaborate with cross-functional teams, mentor junior engineers, own major platform components, ensure code quality and adherence to Swift idioms, and engage in mobile developer communities.

The iOS Developer will lead frontend development, participate in design meetings, and collaborate with UX teams, requiring mobile development expertise.

Build and improve Trala’s iOS violin-learning app, including lesson functionality, iPad support, product experiments, and algorithms that analyze raw audio to detect beginner playing mistakes and provide immediate feedback.

The Senior iOS Engineer will lead product decisions, ship production code, maintain architecture, and shape the product roadmap in a fast-paced startup.

Design, build, and maintain patient-facing iOS applications and clinician tools; optimize real-time video/communication features; contribute to backend services (Python/TypeScript) and AWS infrastructure; improve app performance, architecture, testing, and reliability; collaborate with Product, Design, and Clinical teams and help establish engineering best practices.

Develop and maintain iOS applications using Swift and SwiftUI with AI features, optimize performance, and collaborate with backend and ML engineers.

Senior iOS Developer to design and build secure, high-performance iOS apps using Swift (SwiftUI/UIKit). Implement webview integrations (WKWebView/ASWeb), ASWebAuthenticationSession for OAuth/SSO, JavaScript interop, and native features (camera, push, maps). Ensure responsive web content handling and secure data management. Remote role but must be Bangalore-based with weekly (~1 hour) client office visit to collect a device.

Build and maintain mobile applications using React Native and native iOS/Android technologies. Write performant, maintainable code, participate in product and platform design discussions, support prototyping and internal testing, and test/debug apps across many devices. Ship production-quality mobile apps; published apps preferred.

Develop high-quality, performant, accessible consumer-facing experiences for Netflix’s iOS app using Swift and GraphQL. Responsibilities include building maintainable code, automation, documentation, server-driven UI infrastructure, and ad experiences. Collaborate with product managers, designers, and engineering teams to scope projects, refine interfaces, design scalable solutions, and balance business, product, and architectural trade-offs.

Build and own complex iOS account and commerce features from technical design through launch. Develop reliable, performant, accessible experiences using modern declarative UI and unidirectional state architecture. Collaborate with backend, Android, web, product, design, and data science teams to ensure cross-platform consistency. Write tested maintainable code, resolve performance issues, participate in reviews, mentor engineers, and help establish iOS engineering practices for a newly formed team.

Lead design and implementation of iOS applications, mentor engineers, coordinate with vendors and operations, ensure delivery within scope/time/budget, and apply modern iOS practices (testing, CI/CD, analytics, async concurrency) to maintain high-quality production apps.

Design, build, and maintain scalable, high-performance iOS applications using Swift. Deliver end-to-end features, integrate with back-end services, implement animations and Auto Layout, ensure test coverage and CI/CD, profile and optimize performance, and mentor team members.

The Senior iOS Engineer will lead engineering decisions, enhance the iOS app, and collaborate in product development, focusing on user experience and speed in a remote fast-paced environment.

Lead iOS architecture and deliver native Swift/SwiftUI features for a regulated financial client. Own modularization, state management, CI/CD, testing, secure data handling, API integration, and App Store releases. Mentor a mid-level engineer and enforce compliance and quality standards while leveraging AI-assisted tooling to accelerate delivery.

Lead development of the companys first iOS app, owning architecture, state, navigation, offline support, CI/CD and App Store delivery. Build polished Swift/SwiftUI user experiences, collaborate with design and product, use AI coding tools to iterate quickly, and establish mobile standards and tooling as the team grows.

As an iOS Engineer at Geo, you will develop user interfaces, own the app architecture, and write high-performance code.

Build and maintain high-performance iOS mobile applications using React Native. Collaborate with designers, product, and backend teams to implement features, integrate RESTful APIs, optimize performance, debug issues, write clean code, participate in code reviews, and keep up with mobile development best practices.

Develop and maintain iOS applications using Swift and SwiftUI. Implement reactive code with Combine, follow design patterns, write UI/unit tests, profile and fix performance with Xcode Instruments, manage repos with GitHub, integrate crash reporting and analytics, and distribute frameworks via SPM/CocoaPods.

Design, build, and maintain high-performance native iOS applications. Collaborate with cross-functional teams to define and ship features, ensure app performance and responsiveness, fix bugs, integrate RESTful APIs and third-party libraries, participate in code reviews, and evaluate new technologies to improve development efficiency.

Design, build, and maintain high-quality native iOS applications using Swift and iOS frameworks. Implement UI with UIKit/SwiftUI, handle concurrency, integrate RESTful APIs, ensure unit testing, memory management, and automated code quality in CI/CD pipelines for high-traffic cloud-backed services.

Senior iOS developer to design and build maintainable, performant iOS apps using Swift/SwiftUI and modern concurrency. Build core UI infrastructure, write automated tests (XCTest/XCUITest), participate in code reviews, release apps to the App Store using CI/CD tooling, and partner cross-functionally to define mobile standards.

Senior iOS Developer responsible for building and maintaining native iOS apps using Swift and SwiftUI. Work includes iOS SDK and framework integration, multi-threading, memory management, unit testing, RESTful API integration, cloud/distributed services, CI/CD automation, code quality tooling, and version control collaboration.

Lead ownership of the iOS platform: build offline-first apps with local persistence and sync, real-time communication, media capture/uploads, location/scheduling, and polished, accessible UI/UX for multiple user roles.