Job Openings Senior Mobile Developer

About the job 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


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