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Posted 2w ago

Senior Flutter Developer (Android & iOS)

@ CX25WW
View All Jobs
India
RemoteFull Time, Contract
Responsibilities:developing apps, integrating APIs, ensuring security
Requirements Summary:5+ years mobile development (min 3 years Flutter), experience publishing Android/iOS apps, API integrations (REST/GraphQL/OAuth/JWT), Google/Firebase services, payment and Zoho integrations, CI/CD and mobile security practices, strong English communication.
Technical Tools Mentioned:Flutter, Dart, Material Design, Cupertino, Bloc, Cubit, Riverpod, Provider, Hive, SQLite, Shared Preferences, REST, GraphQL, JSON, OAuth 2.0, JWT, Google Maps, Google Places, Google Sign-In, Firebase, Firebase Authentication, Firebase Cloud Messaging, Google Analytics, Google Cloud Services, Razorpay, Cashfree, PayU, PhonePe, Stripe, PayPal, Zoho CRM, Zoho Books, Zoho Desk, Zoho Creator, Zoho Flow, Zoho Forms, Zoho Sign, Zoho Campaigns, Zoho Mail, Zoho APIs, WhatsApp Business API, Git, GitHub, GitLab, Bitbucket, CI/CD, Fastlane, Codemagic
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Job Description



This is a remote position.

About Project Ardhanarishvara

Project Ardhanarishvara is a flagship initiative by CX25WW focused on building a comprehensive digital ecosystem for the transgender community, enabling access to identity, education, employment, healthcare, financial inclusion, social welfare, and entrepreneurship.

The mobile application will serve as a secure digital platform connecting citizens, employers, educational institutions, NGOs, healthcare providers, financial institutions, government departments, and community organizations through a unified experience.

Role Overview

We are seeking an experienced Senior Flutter Developer to lead the development of our Android and iOS mobile applications.

This is a hands-on engineering role requiring expertise in building secure, scalable, enterprise-grade mobile applications with multiple third-party integrations. The successful candidate will work closely with backend developers, AI engineers, UI/UX designers, security specialists, and product leadership throughout the product lifecycle.

Key Responsibilities

  • Design, develop, test, and maintain Flutter applications for Android and iOS.
  • Build scalable, secure, and high-performance mobile applications.
  • Develop reusable components and maintainable application architecture.
  • Integrate mobile applications with enterprise and government APIs.
  • Implement authentication, authorization, and secure user sessions.
  • Optimize application performance across multiple devices.
  • Publish and maintain applications on Google Play Store and Apple App Store.
  • Collaborate with product, design, QA, and backend engineering teams.
  • Participate in architecture discussions, sprint planning, and code reviews.
  • Ensure compliance with security, privacy, and accessibility standards.
  • Prepare technical documentation and deployment guides.


Requirements

Required Integration Experience

Applicants should have hands-on experience integrating mobile applications with one or more of the following:

Government & Public Services

  • Government APIs (where officially available)
  • Digital identity and authentication services
  • Public data exchange platforms
  • Document verification services

Enterprise Integrations

  • REST APIs
  • GraphQL
  • OAuth 2.0
  • JWT Authentication
  • Webhooks
  • Microservices

Google Services

  • Google Maps
  • Google Places
  • Google Sign-In
  • Firebase
  • Firebase Authentication
  • Firebase Cloud Messaging
  • Google Analytics
  • Google Cloud Services

Payment Gateway Integration

Experience integrating one or more payment gateways such as:

  • Razorpay
  • Cashfree
  • PayU
  • PhonePe
  • Stripe
  • PayPal

Zoho Ecosystem

Experience integrating with:

  • Zoho CRM
  • Zoho Books
  • Zoho Desk
  • Zoho Creator
  • Zoho Flow
  • Zoho Forms
  • Zoho Sign
  • Zoho Campaigns
  • Zoho Mail
  • Zoho APIs

Communication Services

  • SMS Gateway Integration
  • Email Services
  • Push Notifications
  • WhatsApp Business API (preferred)
  • Video Calling APIs
  • Voice Calling SDKs

Technical Skills

Mobile Development

  • Flutter
  • Dart
  • Material Design
  • Cupertino
  • Responsive UI Development

State Management

  • Bloc
  • Cubit
  • Riverpod
  • Provider

Architecture

  • Clean Architecture
  • MVVM
  • Repository Pattern
  • SOLID Principles

Local Storage

  • Hive
  • SQLite
  • Shared Preferences

API Integration

  • REST
  • GraphQL
  • JSON
  • Multipart Upload
  • Background Synchronization

Security

  • SSL Pinning
  • Secure Storage
  • Encryption
  • Biometric Authentication
  • Multi-Factor Authentication
  • Role-Based Access Control

DevOps

  • Git
  • GitHub
  • GitLab
  • Bitbucket
  • CI/CD
  • Fastlane
  • Codemagic

Preferred Experience

Candidates with experience in any of the following will be given preference:

  • AI and Generative AI integration
  • Chatbot implementation
  • Voice recognition
  • OCR and document scanning
  • Face verification
  • QR code scanning
  • Digital identity solutions
  • GIS and location-based services
  • Accessibility features for inclusive applications
  • Offline-first mobile applications
  • Large-scale enterprise applications

Minimum Experience

  • 5+ years in Mobile Application Development
  • Minimum 3 years of hands-on Flutter development
  • Proven experience publishing production applications on both Android and iOS
Educational Qualification

  • Equivalent industry experience with a strong portfolio will also be considered.

What Success Looks Like

The successful candidate will help deliver a secure, scalable, and reliable mobile application that serves thousands of users while integrating seamlessly with enterprise platforms, payment systems, and approved public-sector digital services



Benefits

Employment Type

Choose to work with us as either a Full-Time Employee or on a Project-Based Contract, depending on your availability and preference.

Location

Open to candidates worldwide. This is a remote opportunity, and applicants from any country are welcome to apply.

Language Requirement

Proficiency in English is mandatory, as all verbal and written communication with the team, clients, and stakeholders will be conducted in English.

Compensation & Payment Schedule

Full-Time Employment

Compensation is processed monthly, with salary credited on the last working day of each month, subject to the terms of employment.

Project-Based Engagement

Project-based professionals will be compensated strictly based on the pre-approved project milestones defined in the Statement of Work (SOW).

  • Payments will be released only after the successful completion, review, and formal acceptance of the agreed milestone.

  • Each milestone is considered a complete deliverable. Partial or incomplete milestone submissions will not qualify for milestone payment until all agreed acceptance criteria have been met.

  • Timely delivery is a critical requirement. Delays in milestone completion may impact dependent activities, project schedules, and overall delivery timelines.

  • Developers are expected to proactively communicate risks, blockers, or anticipated delays as soon as they are identified.

  • The estimated duration of the Project Ardhanarishvara mobile application is approximately 24 months, with multiple development phases and milestone-based deliveries throughout the project lifecycle.

We are looking for professionals who can demonstrate ownership, accountability, and a strong commitment to delivering high-quality work on schedule.