Flutter Developer

ITHR Technologies Consulting LLC; Uttar Pradesh; On-site; INR 700,000 - 1,200,000; Full time

Job summary

ITHR Technologies Consulting LLC in India is seeking a mobile engineer with 2+ years of production Flutter and Dart experience to build a cross-platform app from the ground up. You will own architecture, code, releases, performance, and quality, delivering a scalable, modular design that fits fintech-grade security and integration with REST APIs.

You should be comfortable with structured state management, testing, CI/CD, and platform-specific builds.

Qualifications

• 2+ years building production mobile apps with Flutter and Dart.
• At least one app live on Play Store or App Store.
• Strong CS fundamentals and clean architecture practices.

Responsibilities

• Architect and build the app from the ground up on iOS and Android using Flutter and Dart.
• Own it end-to-end — architecture, code, releases, performance, and quality.
• Design for scale with a clean, modular, layered architecture.
• Optimize for performance, startup time, app size, and memory.
• Integrate REST APIs, push notifications, analytics, and crash reporting.
• Build automated tests — unit, widget, and integration.
• Instrument for observability and act on it.
• Own releases: CI/CD, signing, staged rollouts, feature flags, and monitoring.
• Partner with backend on API contracts, and with design on polish.
• Apply fintech-grade security — secure storage, cert pinning, safe token handling.

Skills

Flutter

Dart

REST API

State management

Testing

Git

Education

CS degree or related field

Tools

Dio

Retrofit

DevTools

Job description

What you\'ll do

• Architect and build the app from the ground up on iOS and Android using Flutter and Dart.
• Own it end-to-end — architecture, code, releases, performance, and quality.
• Design for scale with a clean, modular, layered architecture.
• Optimize for performance, startup time, app size, and memory.
• Integrate REST APIs, push notifications, analytics, and crash reporting.
• Build automated tests — unit, widget, and integration — as part of how you ship.
• Instrument for observability (crash-free rate, ANR, performance) and act on it.
• Own releases: CI/CD, signing, staged rollouts, feature flags, and monitoring.
• Partner with backend on API contracts, and with design on polish.
• Apply fintech-grade security — secure storage, cert pinning, safe token handling.

What we\'re looking for

• 2+ years building production mobile apps, strong in Flutter and Dart.
• At least one app live on the Play Store and/or App Store.
• Solid CS fundamentals — data structures, algorithms, design patterns.
• Degree in CS or related field, or equivalent practical experience.
• Deep grasp of Flutter internals (widget tree, rendering, profiling with DevTools).
• Strong Dart — async/await, Futures, Streams, isolates, null safety.
• Hands-on with structured state management (Bloc, Riverpod, or Provider).
• Comfortable with clean/layered architecture and dependency injection.
• Experience with REST networking (Dio, Retrofit), auth, caching, error handling.
• Familiar with native iOS/Android builds, signing, and platform channels.
• Strong testing instincts and clean, disciplined Git workflow.

Nice to have

• Fintech, payments, banking, or wallet experience (PPI, cards, UPI).
• Mobile CI/CD (Fastlane, GitHub Actions, Codemagic, Bitrise).
• Firebase (Crashlytics, Analytics, Remote Config, Push).
• Offline-first design and local storage (Hive, Drift, SQLite).
• Biometric auth, A/B testing, feature-flagged rollouts.
• A feel for motion and craft (Rive, Lottie, custom painters).
• Accessibility and internationalization by default.
• Early/founding mobile engineer at a startup.