Mobile Developer

Viliso Technologies; Mumbai; On-site; INR 900,000 - 1,700,000; Full time

Job summary

Viliso Technologies in Mumbai is seeking a skilled Mobile App Developer with 2+ years of experience in cross‑platform development using React Native or Flutter. You will implement UI/UX, integrate with IoT devices via Bluetooth and Wi‑Fi, and publish apps to Google Play and Apple App Store.

We value hands‑on experience with REST APIs, real‑time data streams, and performance optimization, plus strong collaboration with backend teams and QA.

Qualifications

• 2+ years of professional mobile app development experience.
• Experience with React Native or Flutter.
• Experience with native Android and iOS capabilities.
• Experience consuming REST APIs and handling JSON data.
• Familiarity with Git and collaborative workflows.

Responsibilities

• Design and develop cross‑platform mobile apps for Android/iOS.
• Build pixel‑perfect, responsive, smooth user interfaces with good UX.
• Create reusable, scalable code following best practices.
• Develop dashboards, monitoring screens, analytics views, and device management interfaces.
• Integrate apps with IoT devices via Bluetooth, BLE, and Wi‑Fi; REST APIs; WebSockets.

Skills

React Native

Flutter

Dart/JavaScript/TypeScript

Android/iOS native capabilities

Pixel-perfect UI

UI animations

State management (Redux/Provider/River

REST APIs

JWT/OAuth

Git

Job description

Job Summary

We are looking for a skilled Mobile App Developer with at least 2 years of experience in developing high-quality cross-platform mobile applications using React Native or Flutter. The ideal candidate should have strong UI/UX implementation skills, experience integrating with IoT devices over Bluetooth and Wi‑Fi, and hands‑on experience publishing applications to both the Google Play Store and Apple App Store.

Roles & Responsibilities

• Design and develop high-performance cross-platform mobile applications for Android and iOS.
• Build pixel-perfect, responsive, and smooth user interfaces with excellent user experience.
• Develop and maintain reusable, scalable, and maintainable code following industry best practices.
• Create dashboards, monitoring screens, analytics views, and device management interfaces.
• Integrate mobile applications with IoT devices using:
  • Bluetooth Classic
  • Bluetooth Low Energy (BLE)
  • Wi‑Fi communication
  • REST APIs
  • WebSockets
• Work with hardware devices for real‑time communication, configuration, monitoring, and control.
• Optimize application performance, startup time, battery consumption, and memory usage.
• Generate production-ready APKs, AABs, and iOS builds.
• Deploy and maintain applications on:
  • Google Play Store
  • Apple App Store
• Handle app signing, provisioning profiles, certificates, TestFlight, and release management.
• Debug production issues and resolve platform‑specific bugs.
• Collaborate with backend developers, UI/UX designers, and product teams.
• Participate in code reviews and follow secure coding standards.

Required Skills

• Minimum 2 years of professional mobile application development experience.
• Strong experience with React Native or Flutter.
• Excellent knowledge of Dart or JavaScript/TypeScript.
• Strong understanding of native Android and iOS platform capabilities.
• Experience designing pixel-perfect user interfaces from Figma or design specifications.
• Experience building smooth animations and buttery UI interactions.
• Knowledge of state management solutions such as:
  • Redux
  • Provider
  • Riverpod
• Experience consuming REST APIs and handling JSON data.
• Knowledge of secure authentication mechanisms such as JWT and OAuth.
• Familiarity with Git and collaborative development workflows.

IoT & Device Integration (Must Have)

• Experience communicating with hardware devices via:
  • Bluetooth Classic
  • Bluetooth Low Energy (BLE)
  • Wi‑Fi
• Experience handling device discovery, pairing, configuration, firmware communication, and real‑time data transfer.
• Understanding of background services for continuous device communication.
• Experience implementing reliable reconnection and synchronization mechanisms.

Deployment Experience (Must Have)

• Publishing Android applications on the Google Play Store.
• Publishing iOS applications on the Apple App Store.
• Managing:
  • Release builds
  • App signing
  • Certificates
  • Provisioning profiles
  • TestFlight
  • Play Console
  • App Store Connect

UI/UX Expectations

The candidate should be capable of developing:

• Pixel-perfect interfaces
• Smooth and buttery animations
• Professional dashboards
• Modern mobile navigation
• Responsive layouts across phones and tablets
• High-performance scrolling lists and data visualization

Good to Have

• Experience with Firebase (Authentication, Push Notifications, Analytics, Crashlytics).
• Experience with MQTT or other IoT messaging protocols(Optional).
• Knowledge of offline data synchronization and local databases such as SQLite or Hive.
• Experience with CI/CD pipelines for mobile applications.
• Knowledge of mobile security best practices.

What We’re Looking For

• Strong problem‑solving and debugging skills.
• Attention to detail with a focus on creating polished user experiences.
• Ability to work independently and take ownership of projects.
• Excellent communication and teamwork skills.
• Passion for building high-quality mobile applications and IoT‑enabled solutions.