Senior Flutter Engineer - Remote, Real-Time Calling

IDT Corporation; Warsaw (IN); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote work options

Competitive salary & annual review

Professional training & conferences

Good hardware

Job summary

IDT Corporation is seeking a Senior Flutter Developer for the DTC Calling team to build and evolve the flagship BOSS Revolution app. You’ll work on a large-scale Flutter product with a deep native calling stack (SIP/VoIP) and a monorepo of 100+ internal packages.

You will join a cross-functional team focused on code quality, testing, and automation. Responsibilities include end-to-end feature ownership in a clean architecture, platform channel integration, and performance optimization for a

Qualifications

• 5+ years building large mobile apps, 3+ years with Flutter.
• Strong Flutter/Dart expertise and state management (Bloc/Cubit).
• Hands-on native mobile dev experience (Kotlin/Android or Swift/iOS).
• Experience with CI/CD pipelines and code signing.

Responsibilities

• Design and build high-performance features in Flutter/Dart.
• Maintain native calling stack and platform integration via channels.
• Contribute to architecture and testing culture with high test coverage.
• Collaborate with PMs, backend, QA, and designers in a cross-functional team.
• Improve tooling and automate releases and quality gates.

Skills

Flutter

Dart

Kotlin/Swift

Unit testing

CI/CD

Platform channels

English

Job description

IDT Corporation is seeking a Senior Flutter Developer for the DTC Calling team to build and evolve the flagship BOSS Revolution app. You’ll work on a large-scale Flutter product with a deep native calling stack (SIP/VoIP) and a monorepo of 100+ internal packages.

You will join a cross-functional team focused on code quality, testing, and automation. Responsibilities include end-to-end feature ownership in a clean architecture, platform channel integration, and performance optimization for a