EX Squared LATAM - Senior Mobile Developer (Kotlin Multiplatform , Android & iOS) - TEMPORARY.

App Developer is needed in United States.

Client: EX Squared LATAM

Location: United States

Contract: No Job Type Listed

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 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.

As a Senior Mobile Developer, you’ll lead the development of shared features for Android and iOS using Kotlin Multiplatform (KMM), 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.

Responsibilities

• 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

Requirements

• 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

Additional Information

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.

Benefits

• Competitive compensation in USD
• Remote-first work environment
• Flexible hours
• Access to Udemy for continuous learning
• Recognition through Assembly for performance and results
• A transparent, inclusive, and people-first culture