Senior Mobile Application Developer

Mobile App Developer | Experience: 5+ Years | Job Type: Part Time
4 Hr/Day Engagement | Remote- WFH - INDIA

Job Summary

We are looking for an experienced Mobile Application Developer to design, develop, and maintain high-performance cross-platform mobile applications for Android and iOS. The ideal candidate will have strong expertise in React, Capacitor, mobile architecture, and backend/API integrations, along with exposure to AI-powered applications and in-app purchase systems.

Key Responsibilities

• Design, develop, and maintain cross-platform mobile applications using React and Capacitor for Android and iOS
• Integrate voice-based AI features using Whisper (Tiny/Base) or similar local speech-to-text engines
• Collaborate with backend teams to consume APIs built with Node.js or FastAPI
• Implement offline-first functionality using SQLite and sync data with PostgreSQL (Cloud)
• Integrate and manage OpenAI Responses & Realtime APIs for AI-driven features
• Build secure and scalable app architectures ensuring performance and reliability
• Implement and maintain In-App Purchases (Google Play & Apple App Store)
• Debug, optimize, and enhance application performance across devices
• Participate in code reviews, architectural discussions, and best-practice enforcement
• Work closely with product managers, designers, and AI engineers to deliver high-quality features

Required Skills & QualificationsMobile Development

• 5+ years of experience in mobile application development
• Strong hands-on experience with React and Capacitor for cross-platform apps
• Solid understanding of Android and iOS app lifecycles, deployment, and store guidelines
• Experience implementing Google Play and Apple In-App Purchases

Backend & APIs

• Experience working with Node.js or FastAPI backends
• Strong knowledge of RESTful APIs and real-time data communication
• Familiarity with authentication, authorization, and secure data handling

Databases

• Experience with SQLite for local/offline storage
• Experience with PostgreSQL or other relational databases in cloud environments
• Understanding of data synchronization strategies

AI & Voice Technologies

• Hands-on experience integrating AI APIs, preferably OpenAI Responses & Realtime APIs
• Experience working with speech-to-text engines such as Whisper (Tiny/Base) or equivalent
• Understanding of AI-driven user experiences in mobile applications

Frontend & Dashboard (Good to Have)

• Experience with React or Next.js for web dashboards or admin panels
• Knowledge of responsive design and performance optimization

Nice to Have

• Experience with real-time streaming or conversational AI applications
• Knowledge of CI/CD pipelines for mobile apps
• Familiarity with cloud platforms and app analytics
• Prior experience in subscription-based or monetized mobile applications

Job Types: Full-time, Contractual / Temporary, Freelance
Contract length: 4 months

Pay: ₹700.00 - ₹800.00 per hour

Expected hours: 20 per week

Benefits:

• Work from home

Work Location: Remote