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Mobile Application Developer (iOS / Android)

S3 Staffing USA
Auburn, MI Contractor
POSTED ON 5/22/2026
AVAILABLE BEFORE 6/19/2026

Mid-Level Mobile Application Developer (iOS / Android)

Job Description

We are looking for a Mid-Level Mobile Application Developer with at least 3 years of hands-on experience in iOS and/or Android application development. The candidate will be responsible for designing, developing, testing, and maintaining mobile applications while collaborating with cross-functional teams in an agile environment.

The ideal candidate should have strong mobile development fundamentals, experience integrating backend APIs, and a good understanding of application performance, usability, and scalability.

Responsibilities

  • Design, develop, test, and maintain mobile applications for iOS and/or Android platforms
  • Collaborate with product owners, designers, backend developers, and QA teams
  • Integrate RESTful APIs and third-party services
  • Troubleshoot, debug, and resolve application issues
  • Participate in code reviews and follow development best practices
  • Ensure application performance, quality, and responsiveness
  • Support application deployment and maintenance activities
  • Work in an Agile/Scrum development environment

Required Qualifications

  • Minimum 3 years of experience in mobile application development
  • Experience with:
    • iOS development using Swift and/or Objective-C
    • Android development using mainly Kotlin and know Java
  • Experience consuming REST APIs and working with JSON
  • Familiarity with Git/version control systems
  • Understanding of mobile UI/UX principles and application lifecycle
  • Experience with debugging and performance optimization
  • Strong problem-solving and communication skills

Preferred Qualifications

  • Experience with CI/CD pipelines for mobile applications
  • Knowledge of cloud services such as AWS
  • Experience with Firebase, push notifications, analytics, or mobile security
  • Automotive or connected vehicle application experience is a plus

Education

  • Bachelor’s degree in Computer Science, Engineering, or related field preferred

Salary : $60 - $65

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