Senior Mobile Developer (React Native + Expo)

About Invezza Technologies

Invezza is a technology consulting and outsourced product development company. We believe in growing together and creating long-term relationships with the common purpose of delivering innovative solutions and cutting-edge digital experiences. We are technically creative, innovators with a deep passion for technology.

Job Title: Senior Mobile Developer (React Native + Expo)

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About the Role

Senior Mobile Developer

Key Responsibilities

• Design and develop

  cross-platform mobile applications

  using

  React Native and Expo

  .
• Build and optimize

  real-time chat/messaging features

  using

  Firebase Firestore

  .
• Translate

  Figma designs

  into pixel-perfect, responsive

  chat UI components

  .
• Manage complex application

  state using Zustand

  .
• Integrate mobile apps with

  PostgreSQL backend

  and

  Firebase Authentication

  .
• Implement

  push notifications

  with

  Firebase Cloud Messaging (FCM)

  .
• Build chat functionalities:

  message lists, typing indicators, attachments, media sharing,

  and

  real-time updates

  .
• Ensure

  smooth scrolling performance

  ,

  efficient message queues

  , and

  real-time synchronization

  .
• Deploy and manage app releases on

  App Store

  and

  Google Play

  .

Required Skills & Experience

• 7+ years

  of total software development experience.

• 3+ years

  of experience with

  React Native and Expo

  .
• Strong understanding of

  Firebase (Firestore, Authentication, Cloud Messaging)

  .
• Hands-on experience with

  Zustand

  for state management.
• Good knowledge of

  PostgreSQL

  integration with mobile backends.
• Proficiency in

  TypeScript/JavaScript (ES6+)

  .
• Experience translating

  Figma designs

  into production-ready mobile UI.
• Proven track record of building

  real-time chat or conversational applications

  .

Must-Have Expertise

• Developing

  conversational UIs

  (message bubbles, chat layouts, input fields).
• Implementing

  real-time synchronization

  with backend services.
• Optimizing

  scroll and rendering performance

  in chat lists.
• Managing

  message queues, updates, and offline data handling

  .

Preferred Qualifications

• Prior experience deploying apps to

  App Store

  and

  Google Play

  .
• Familiarity with

  CI/CD pipelines

  for mobile applications.
• Strong problem-solving, debugging, and performance tuning skills.