Mobile Engineer Contractor

Position Summary

Contractor

Remote

Work you'll do

We are seeking an experienced Mobile Engineer Contractor to contribute to a high-performing team of mobile engineers designing and delivering scalable, high-performance applications across iOS and Android platforms. The ideal candidate brings deep native mobile engineering expertise, strong architectural instincts, and the ability to mentor and collaborate across globally distributed teams and client organizations.

Roles and Responsibilities

• Support a team of mobile developers by promoting best practices and helping ensure consistent delivery of high-quality iOS and Android applications
• Remain hands-on in development, building, maintaining, and optimizing native mobile applications using Swift and Kotlin
• Contribute to the design and implementation of CLEAN architecture, SOLID principles, and established mobile design patterns to produce modular, scalable, and maintainable codebases
• Conduct code reviews and work with the team to remediate quality issues
• Troubleshoot, triage, and resolve critical production issues across applications supported by your team
• Contribute to the design of data persistence strategies using Room and DataStore on Android and SQLite and SwiftData on iOS
• Implement robust networking integrations with RESTful APIs, handling JSON and XML data formats
• Apply Test-Driven Development (TDD) practices, with emphasis on unit testing, UI testing, and testable architecture design
• Help set up and maintain CI/CD pipelines using Jenkins, Android build tools, and equivalent iOS tooling
• Integrate and manage third-party libraries and APIs, and develop reusable internal SDKs and frameworks
• Optimize app performance through memory profiling, multithreading management, and performance tuning using tools such as Instruments
• Ensure multi-device compatibility across phones and tablets in portrait and landscape orientations on both platforms
• Coordinate and collaborate with offshore and globally distributed development teams
• Partner with product managers and designers to define architecture and technical specifications
• Create and maintain comprehensive technical documentation for mobile applications and development processes
• Mentor and provide guidance to junior developers, supporting their professional growth
• Participate in Digital Product Management and stakeholder meetings, contributing to project planning and delivery

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Computer Engineering, or a related field - or equivalent experience
• 9+ years of native mobile engineering experience, with a strong portfolio of published apps on both iOS and Android
• Proficiency in Kotlin for Android development and Swift for iOS development
• Deep understanding of mobile architecture, design patterns (CLEAN, SOLID, MVVM, MVP), and platform best practices
• Expertise in the Android SDK, Android Studio, iOS SDK, and Xcode
• Strong background in TDD, unit testing, and UI testing
• Experience managing multithreading, memory management, and error handling across mobile platforms
• Hands-on experience with Git and version control tools (e.g., SourceTree)
• Familiarity with CI/CD tooling (Jenkins or equivalent)
• Experience integrating third-party libraries and working with REST APIs and JSON/XML data
• Excellent communication, collaboration, and teamwork skills
• Experience working with globally distributed teams
• Willingness to apply and grow your skillset to meet evolving client needs

Preferred Qualifications

• Experience in a consulting or professional services environment
• Experience in the healthcare industry
• Familiarity with Agile/Scrum development methodologies
• Experience with automated mobile testing tools (e.g., Perfecto Mobile)

The expected pay range for this contract assignment is $60 - $70 per hour will vary based on skills, experience, and location and will be determined by the third-party whose employees provide services to Deloitte.

Candidates interested in applying for this opportunity must be geographically based in the United States and must be legally authorized to work in the United States without the need for employer sponsorship.

We do not accept agency resumes and are not responsible for any fees related to unsolicited resumes.

Deloitte is not the employer for this role.

This work is contracted through a third-party whose employees provide services to Deloitte.

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Expected Work Schedule

Approximate hours per week

About Deloitte

Our inclusive culture empowers our people to be who they are, contribute their unique perspectives, and make a difference individually and collectively. It makes Deloitte one of the most rewarding places to work.