JOBWAVE VERIFIED

Senior Flutter Developer

Company: CSEIDC Technologies Pvt Ltd Location: Kochi, Kerala Experience: 6–7 Years Total; 4+ Years Flutter/Dart Education: Not specified Work Mode: Full Work From Office — 5 days/week Employment Type: Full-time Core Domain: Cross-Platform Mobile Application Development Primary Stack: Flutter, Dart State Management: Bloc / Riverpod / Provider / GetX APIs: REST, GraphQL, WebSockets Backend Integration: Firebase / Third-Party SDKs Architecture: Clean Architecture / MVVM / Modular Architecture Testing: Unit, Widget & Integration Testing Cloud / Services: Firebase CI/CD: Codemagic, Fastlane, GitHub Actions, Jenkins Platforms: Android & iOS Salary: Not specified

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JOBWAVE INSIGHTS

Who is this for?

This is a senior-level Flutter role for someone who can independently own mobile features from UI implementation through API integration, testing, release, production support, and performance optimization.

The role also expects technical ownership and mentoring, making it more than a pure Flutter coding position.

A particularly important requirement is full-time work from the Kochi office, 5 days per week.

Key Skills

• Flutter
• Dart
• Android & iOS
• Bloc / Riverpod / Provider
• Clean Architecture / MVVM
• REST / GraphQL
• WebSockets
• Firebase
• SQLite / Hive / Drift
• OAuth / JWT
• App Store & Play Store publishing
• CI/CD
• Git
• Unit / Widget / Integration Testing
• Mobile performance optimization
• Production troubleshooting

Priority Skills

Highest Priority

1. Flutter & Dart
2. 4–5+ years of hands-on Flutter experience
3. State management — Bloc / Riverpod / Provider
4. Clean Architecture / MVVM
5. REST APIs & authentication
6. Android & iOS app release experience
7. Firebase
8. Mobile performance & production debugging
9. Full-time Kochi office availability

Strong Advantages

• Native Android with Kotlin/Java
• Native iOS with Swift
• Platform Channels
• Trading / Broking / Wealth / Investment applications
• Capital markets knowledge
• CI/CD for mobile applications
• Secure storage & certificate pinning
• Flutter Web/Desktop
• Modular architecture
• BFSI domain experience

What to Prepare

• Advanced Dart
• Flutter architecture
• State management
• Clean Architecture / MVVM
• REST API integration
• WebSockets
• Firebase
• Local storage
• Authentication
• Mobile performance
• App security
• Testing
• Play Store & App Store release process
• Mobile CI/CD
• Production crash/debugging
• Mentoring and code reviews

What to Focus On

1. Flutter Architecture

Be ready to explain how you structure a large Flutter application using Clean Architecture, MVVM, or a similar approach, including separation of UI, business logic, data, repositories, and services.

2. State Management

The role specifically mentions Bloc, Riverpod, and Provider. Prepare practical examples of managing complex application state, API states, loading/error states, caching, and dependency injection.

3. Mobile API Integration

Prepare REST, GraphQL, WebSockets, JSON parsing, authentication, JWT/OAuth, token refresh, error handling, and network failure scenarios.

4. Performance

Expect questions around Flutter performance, unnecessary rebuilds, memory usage, startup time, list rendering, image optimization, isolates, and diagnosing performance bottlenecks.

5. App Releases

You should be able to explain how you have taken an application from development to production on both Google Play Store and Apple App Store, including signing, builds, versioning, release tracks, and CI/CD.

6. Firebase

Prepare Firebase Authentication, Firestore, FCM, Crashlytics, and Analytics, particularly how these services are used in production mobile applications.

7. Domain Knowledge

Trading/broking/wealth experience is listed as a good-to-have. If applicable, prepare concepts such as orders, positions, holdings, P&L, margins, settlement, equities, derivatives, mutual funds, ETFs, and IPOs.

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JOB DETAILS

Original Role Information

Role Overview

CSEIDC Technologies is looking for a Senior Flutter Developer to build and maintain high-quality cross-platform Android and iOS applications.

The developer will own features end-to-end, work closely with product, design, and backend teams, mentor junior developers, and contribute to technical decisions.

Responsibilities

Flutter Development

• Develop and maintain cross-platform mobile applications
• Build applications using Flutter and Dart
• Translate UI/UX designs into responsive, pixel-accurate interfaces
• Build scalable and maintainable application features

Architecture

• Design clean and modular application architecture
• Apply Clean Architecture, MVVM, or similar patterns
• Build testable and maintainable code

API & Integration

• Integrate REST APIs
• Work with GraphQL
• Implement WebSocket communication
• Integrate third-party SDKs
• Implement authentication and authorization

State Management

• Work with Bloc
• Riverpod
• Provider
• GetX

Performance

• Optimize application performance
• Improve memory usage
• Optimize application startup time
• Diagnose performance bottlenecks

Testing & Quality

• Write unit tests
• Write widget tests
• Write integration tests
• Participate in code reviews
• Maintain application quality

Release & CI/CD

• Own Android releases
• Own iOS releases
• Publish applications to Google Play Store
• Publish applications to Apple App Store
• Maintain mobile CI/CD pipelines

Leadership

• Mentor junior developers
• Contribute to technical decisions
• Collaborate with product, design, and backend teams
• Contribute to engineering best practices

Production Support

• Diagnose production issues
• Resolve crashes
• Investigate performance problems
• Maintain application stability

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REQUIREMENTS

Experience

• 6–7 years total software development experience
• 4+ years of Flutter/Dart experience according to the role overview
• The detailed requirements specify 5+ years in Flutter and Dart
• Senior-level ownership experience

Flutter / Dart

• Strong Flutter development
• Strong Dart knowledge
• Async programming
• Streams
• Isolates
• Cross-platform development

State Management

• Bloc
• Riverpod
• Provider
• GetX

Architecture

• Clean Architecture
• MVVM or similar
• Modular architecture

API & Networking

• RESTful APIs
• GraphQL
• WebSockets
• JSON
• OAuth
• JWT

Local Storage

• SQLite
• Hive
• Drift
• Shared Preferences

Firebase

• Firebase Authentication
• Firestore
• Firebase Cloud Messaging
• Crashlytics
• Analytics

Testing

• Unit testing
• Widget testing
• Integration testing

Mobile Platforms

• Android
• iOS
• Google Play Store
• Apple App Store

Development Practices

• Git
• Agile/Scrum
• Code reviews
• Production troubleshooting

Work Location

• Full-time work from office
• Kochi, Kerala
• 5 days per week

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QUALIFICATIONS

• 6–7 years of total software development experience
• 5+ years of Flutter/Dart experience as stated in the detailed requirements
• Strong Dart and Flutter knowledge
• Experience building Android and iOS applications
• Strong state management experience
• REST/API integration experience
• Firebase experience
• Local storage experience
• App Store and Play Store publishing experience
• Testing experience
• Git and Agile/Scrum experience
• Ability to mentor junior developers
• Willingness to work from office full-time

Good to Have

• Kotlin/Java
• Swift
• Platform Channels
• Trading/Broking/Wealth applications
• Capital markets knowledge
• Codemagic
• Fastlane
• GitHub Actions
• Jenkins
• Flutter Web/Desktop
• App security
• Secure storage
• Certificate pinning
• BFSI/Healthcare/E-commerce experience
• Modular or micro-frontend architecture
• Jira
• Figma
• Postman
• Swagger

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POTENTIAL GAPS TO CHECK

• Flutter experience: There is a small inconsistency in the posting—one section says 4+ years, while the detailed requirements say 5+ years. Treat 5+ years as the safer target.
• Full-time office: 5 days/week from the Kochi office is explicitly required.
• App publishing: Make sure you have actual Play Store and App Store release experience.
• State management: Being familiar with only basic setState may not be sufficient for this senior role.
• Architecture: Prepare a real example of Clean Architecture/MVVM implementation.
• Testing: Be ready to demonstrate unit, widget, and integration testing.
• Firebase: Production experience across multiple Firebase services will strengthen the profile.
• Native development: Kotlin/Java or Swift is a bonus rather than a core requirement.
• Capital markets: This is a strong advantage if the role is associated with trading/investment applications, but it is not listed as mandatory.
• CI/CD: Mobile release automation experience can significantly strengthen the profile.

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INTERVIEW PREPARATION

Phase 1 — Dart & Flutter

• Dart language fundamentals
• Null safety
• Futures and async/await
• Streams
• Isolates
• Generics
• Extensions
• Mixins
• Flutter widget lifecycle
• Stateful vs Stateless widgets
• Build/rebuild behavior
• Keys
• Navigation
• Dependency injection

Phase 2 — Architecture & State Management

• Clean Architecture
• MVVM
• Repository pattern
• Dependency injection
• Bloc
• Riverpod
• Provider
• State lifecycle
• Error/loading/success states
• Feature-based project structure
• Modular application design

Phase 3 — APIs & Data

• REST API integration
• GraphQL basics
• WebSockets
• JSON serialization
• OAuth
• JWT
• Token refresh
• API error handling
• SQLite
• Hive
• Drift
• Shared Preferences
• Offline data strategies

Phase 4 — Firebase

• Firebase Authentication
• Firestore
• FCM
• Crashlytics
• Analytics
• Push notification architecture
• Production crash investigation

Phase 5 — Testing & Quality

• Unit testing
• Widget testing
• Integration testing
• Mocking
• Testable architecture
• Code reviews
• Static analysis
• Regression testing

Phase 6 — Performance & Security

• Flutter performance profiling
• Reducing unnecessary rebuilds
• Memory management
• Startup optimization
• List performance
• Image optimization
• Isolates for expensive operations
• Secure storage
• Certificate pinning
• API security
• Sensitive-data protection

Phase 7 — Release & CI/CD

• Android signing
• iOS signing
• Build flavors
• Versioning
• Play Store release process
• App Store release process
• TestFlight
• Codemagic
• Fastlane
• GitHub Actions
• Jenkins
• Automated mobile deployments

Phase 8 — Senior-Level Ownership

Prepare examples covering:

• A feature you owned end-to-end
• A difficult production crash you resolved
• A major performance issue you fixed
• An architecture decision you made
• A junior developer you mentored
• A difficult API/backend integration
• A code review where you identified a significant issue
• A successful production release
• A situation where you worked closely with product and design teams

Final Interview Focus

Be ready for questions such as:

• How would you structure a large Flutter application using Clean Architecture?
• Bloc vs Riverpod vs Provider — when would you choose each?
• Explain Dart isolates and when you would use them.
• How do you prevent unnecessary widget rebuilds?
• How would you optimize a Flutter application with poor startup performance?
• How do you handle JWT expiration and token refresh?
• How would you implement WebSocket reconnection?
• How would you design offline support for a mobile application?
• How do you use Firebase Crashlytics to investigate production crashes?
• Explain your process for releasing an application to both Play Store and App Store.
• How would you secure sensitive data stored on a mobile device?
• What is certificate pinning and when would you use it?
• How would you design a trading application architecture in Flutter?
• How do you handle real-time market data using WebSockets?
• Describe a production issue you diagnosed and resolved.
• How do you mentor junior Flutter developers while maintaining code quality?