Senior Mobile Developer (Kotlin Multiplatform) - Temporary.

🌍 Remote, USA 🎯 Full-time 🕐 Posted Recently

Job Description

Become an EXpert as a Senior Mobile Developer (Kotlin Multiplatform – Android & iOS).

At EX Squared LATAM, we help global brands transform how they operate by building high-performing digital solutions with real-world impact. We're now looking for a Senior Mobile Developer with strong experience in Kotlin Multiplatform to join our team and contribute to the development of a strategic product.

If you're passionate about building mobile solutions that scale across platforms, enjoy working in cross-functional teams, and thrive in fast-paced, high-impact environments—this is your opportunity to make a difference.

What You'll Do

As a Senior Mobile Developer, you'll lead the development of shared features for Android and iOS using Kotlin Multiplatform (KMM), while ensuring high-quality implementation in platform-specific layers when needed. You'll work in an agile, cross-functional team to create accessible, high-performance solutions that deliver an exceptional user experience.

Designing and building modern mobile apps that meet UX/UI and performance standards
Writing clean, scalable code in Kotlin, Swift, and Java
Utilizing Kotlin Multiplatform to build reusable components across Android and iOS
Applying architecture patterns such as MVVM, MVI, or MVP
Creating intuitive interfaces aligned with Android and iOS guidelines
Implementing navigation flows and seamless offline functionality
Integrating RESTful and/or GraphQL APIs with solid error handling
Writing and maintaining unit tests and supporting automated QA processes (e.g., Mockito, Espresso, Robolectric)
Collaborating with Designers, Backend Developers, QA Engineers, and Product Managers
Contributing to CI/CD pipelines and continuous delivery workflows
Documenting technical decisions and maintaining clear, scalable architecture
Staying current with mobile development trends, open-source tools, and platform updates

What You'll Bring

You're a mobile engineer who can operate independently when needed, but thrives in a collaborative, agile environment. You're proactive, solution-oriented, and bring structure to complex challenges.

5+ years of experience with Android development using Kotlin
Proven experience with Kotlin Multiplatform (KMM) in production or side projects
Understanding of modern Android and iOS development principles
Familiarity with Swift and SwiftUI.
Experience integrating RESTful/GraphQL APIs
Solid grasp of mobile architecture patterns (MVVM, MVI, etc.)
Proficiency in UI/UX design principles and responsive layouts
Background in testing, debugging, and performance optimization
Understanding of accessibility standards (WCAG 2.2) and their implementation
Experience with Git, Agile workflows, and CI/CD pipelines

Why Join EX Squared?

At EX Squared, we build impactful digital solutions for world-class clients while empowering top talent across Latin America. We foster a culture grounded in technical excellence, transparency, continuous learning, and collaboration.