Senior Mobile Developer

Job Title: Senior Mobile Developer (iOS & Android – Native)
Location: Remote – Latin America Preferred
Type of Contract: Full-Time | Contractor
Salary Range: Market Rates
Language Requirements: English (Professional Working Proficiency)

We are seeking a skilled Senior Mobile Developer with deep experience building native iOS and Android applications to join our growing team. You will play a key role in designing, developing, and shipping production-grade mobile apps with real-time communication and secure integrations. Your work will directly impact mobile performance, reliability, and the end-user experience across voice, messaging, and data-driven workflows.

Key Responsibilities

• Build and maintain native iOS applications using Swift and Xcode.

• Build and maintain native Android applications using Kotlin and Android Studio.

• Integrate and manage Twilio SDKs for voice, messaging, and real-time events.

• Consume and integrate Laravel-based REST APIs for authentication, data, and workflows.

• Implement secure authentication flows using JWT and OAuth patterns.

• Handle push notifications, background services, and full mobile app lifecycle events.

• Own mobile quality end to end, including performance optimization, testing, and App Store / Play Store releases.

Must-Have Qualifications

• 6+ years of professional mobile development experience.

• Proven production experience with native iOS and native Android applications.

• Hands-on experience integrating Twilio SDKs in mobile apps.

• Strong experience consuming REST APIs, ideally built with Laravel.

• Solid understanding of mobile networking, asynchronous flows, and error handling.

• Experience implementing mobile security best practices.

• Strong debugging, profiling, and performance optimization skills.

Preferred Qualifications

• Experience building real-time voice, calling, or communication-focused applications.

• Experience with WebSockets or event-driven mobile architectures.

• Experience collaborating closely with backend teams on API contracts.

• Exposure to Vue.js or frontend concepts for cross-team collaboration.

• Experience scaling mobile apps with high traffic or real-time usage.

Tech Stack

• iOS: Swift, Xcode

• Android: Kotlin, Android Studio

• Mobile SDKs: Twilio

• Backend APIs: Laravel REST APIs

• Authentication: JWT, OAuth

• Tooling: Git, CI/CD pipelines, App Store Connect, Google Play Console