iOS Developer

Compunnel, Inc.; New York, Northern (NY, KY); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Compunnel, Inc. is seeking an experienced iOS Developer to design, build, test, and enhance mobile applications for a global user base. You will collaborate with designers, product owners, QA, and other engineers to deliver high-quality apps and share solving complex problems.

Required: strong Swift, UIKit with MVVM, REST API integration, XCTest/XCUITest tests, and modern Xcode workflows. Experience with GitHub Actions, CircleCI, Tuist, and Open-Source contributions is a plus; be ready to work

Qualifications

• Strong Swift and iOS development experience.
• Proficient with UIKit and MVVM architecture.
• Experience integrating mobile apps with REST APIs.
• Experience with XCTest/XCUITest for testing.
• Familiarity with CI/CD tools like GitHub Actions/CircleCI.

Responsibilities

• Design, develop, maintain, and enhance iOS applications.
• Write clean, testable code and improve existing codebases.
• Collaborate with designers, product owners, QA, and engineers.
• Analyze defects and optimize performance.
• Develop tests using XCTest/XCUITest and maintain CI workflows.

Skills

Swift/iOS development

UIKit MVVM

REST API integration

Unit/Integration testing

CI/CD with GitHub Actions/CircleCI

Objective-C legacy code

Code reviews

Team collaboration

Education

Bachelor's degree in Computer Science or related

Tools

Tuist

xcodebuild

GitHub Actions

CircleCI

Job description

We are seeking a skilled iOS Developer to design, develop, test, and enhance mobile applications used by a large global user base. The ideal candidate will have strong technical expertise in iOS development, a passion for user experience and clean code, and the ability to solve complex problems in a fast-paced, collaborative environment. The developer will work closely with designers, product owners, QA engineers, and other developers to deliver high-quality mobile experiences while contributing ideas and solutions to open-ended technical challenges.

Key Responsibilities

• Design, develop, maintain, and enhance iOS applications using modern development practices.
• Write clean, maintainable, and testable code while continuously improving existing codebases.
• Develop and implement mobile features in collaboration with designers, product owners, QA, and engineering teams.
• Analyze and resolve application defects, performance issues, and production bugs.
• Perform performance analysis and optimization to improve application responsiveness and reliability.
• Work with both modern Swift code and legacy Objective-C components.
• Develop and maintain unit and integration tests using XCTest and XCUITest.
• Build and maintain continuous integration workflows using tools such as GitHub Actions and CircleCI.
• Work with build and project management tools such as Tuist and xcodebuild.
• Integrate iOS applications with REST APIs and backend services.
• Contribute to functional programming patterns, MVVM architecture, and reusable application components.
• Design solutions for ambiguous and open-ended technical problems and rapidly iterate on potential solutions.
• Participate in code reviews and contribute to engineering standards and best practices.
• Collaborate effectively with globally distributed engineering teams.
• Contribute to open-source initiatives and continuously evaluate modern iOS technologies and development practices.

Required Qualifications

• Professional experience developing and maintaining iOS applications.
• Strong hands-on experience with Swift and iOS development frameworks.
• Experience with UIKit and modern iOS application architecture, including MVVM.
• Experience integrating mobile applications with REST APIs and backend services.
• Experience with unit and integration testing using XCTest and/or XCUITest.
• Experience troubleshooting bugs and optimizing application performance.
• Experience working with Objective-C legacy codebases.
• Experience with continuous integration and build automation.
• Experience with GitHub Actions, CircleCI, Tuist, xcodebuild, or similar development and build tools.
• Strong understanding of software development methodologies and functional coding patterns.
• Ability to work independently, manage time effectively, and take ownership of technical deliverables.
• Strong problem-solving, communication, and collaboration skills.
• Bachelor’s degree in Computer Science or a related field, or equivalent professional experience.

Preferred Qualifications

• Experience working with large-scale consumer-facing mobile applications.
• Experience with globally distributed engineering teams.
• Experience with RAML API documentation.
• Familiarity with µFeatures architecture or similar modular application architectures.
• Experience with Danger or similar automated code review and quality tools.
• Contributions to open-source projects.
• Experience working with custom or legacy backend services.

Certifications

• Relevant iOS, Swift, mobile development, or cloud certifications are a plus.