Sr. Mobile Application Engineer

Senior Mobile Application Engineer (Kotlin / Jetpack / Swift)

Location : Downtown Chicago (Hybrid)

Employment Type : Contract to Hire, W2 only

Position Summary : We are seeking a versatile and highly skilled Senior Mobile Application Engineer with deep expertise in Android / iOS development and Java to join our innovative mobile team. In this pivotal role, you'll serve as the bridge between our Android and iOS engineers, developing robust cross-platform solutions and modernizing mobile experiences for a global audience. The ideal candidate thrives in fast-paced environments, understands mobile architecture deeply, and is passionate about building high-performance, user-centric applications.

Key Responsibilities :

• Native Android / iOS expertise : Role clarified to be focused on native development (Kotlin / Jetpack Compose for Android, Swift / SwiftUI for iOS).
• Legacy modernization experience : Ability to deal with a 70% legacy codebase while introducing modern architecture patterns and better testability.
• Architecture mastery :

MVI & MVVM patterns for maintainable, scalable apps.

Experience

Preferred Qualifications

Contract to Hire : This role offers the opportunity for full-time employment based on performance.

CoSourcing Partners is an equal opportunity employer committed to fostering an inclusive and diverse workplace. We do not discriminate based on race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, genetic information, or any other protected status under applicable federal, state, or local laws.

We believe in creating a work environment where all employees feel valued, respected, and empowered to contribute to our success. Accommodations are available upon request for applicants with disabilities throughout the hiring process.

Join us and be part of a team that values diversity, equity, and inclusion.