Senior Flutter Developer

Spyrosoft Ltd; United States; Remote; USD 120,000 - 170,000; Full time

Job summary

Spyrosoft Ltd seeks a Senior Flutter Developer to join a long-term international project delivering mobile solutions for a global leader in healthcare and safety sectors. You will work with architects, engineers, and product teams to deliver scalable Flutter/Dart apps connected with smart devices and backend services.

You will contribute to architecture discussions, ensure robust mobile performance, and publish apps on App Store and Google Play, while embracing Agile ceremonies and continuous

Qualifications

• Extensive commercial experience in mobile app development.
• Strong hands-on Flutter and Dart experience from multiple projects.
• Proven track record delivering production-grade mobile apps.
• REST API integration expertise.
• Experience publishing apps on Android and iOS stores.
• Solid understanding of mobile architecture and best practices.
• Ability to contribute to architectural discussions.
• Experience in Agile/Scrum environments.
• English proficiency at B2 level or higher.

Responsibilities

• Design, develop, and maintain mobile applications using Flutter and Dart.
• Build high-quality, scalable, and maintainable solutions for Android and iOS platforms.
• Integrate mobile applications with REST APIs and external services.
• Collaborate with cross-functional international teams, including architects, backend developers, QA engineers, and product stakeholders.
• Participate in architectural discussions and technical decision-making.
• Optimize application performance, reliability, and user experience.
• Publish and maintain applications in App Store and Google Play.
• Support integration with connected devices, sensors, and hardware communication technologies.
• Participate in Agile ceremonies and contribute to continuous improvement initiatives.

Skills

Flutter & Dart

REST API

Android & iOS

App Store publishing

Agile/Scrum

English B2+

Software architecture

Job description

Tech Stack:

• Flutter/Dart

• REST API

• App Store & Google Play

• Firebase

• GraphQL

• Bluetooth Low Energy (BLE)

• NFC

• IoT / Connected Devices

Project Description:

Join a long-term international project delivered for a global technology leader operating in the healthcare and safety sector. The project focuses on developing innovative mobile applications connected with smart devices used in medical and industrial environments.

As a Senior Flutter Developer, you will collaborate with experienced architects, engineers, and product teams to build high-quality mobile solutions that deliver real-world impact. You will contribute to the development of scalable, reliable, and user-friendly applications supporting connected products and advanced device communication technologies.

Required Qualifications:

• Extensive commercial experience in mobile application development

• Strong hands-on experience with Flutter and Dart gained through multiple commercial projects

• Proven track record of developing, delivering, and maintaining production-grade mobile applications

• Strong knowledge of REST API integration

• Experience working with both Android and iOS platforms

• Experience publishing and maintaining applications in App Store and Google Play

• Solid understanding of software architecture principles and mobile development best practices

• Ability to make technical decisions and contribute to architectural discussions

• Experience working in Agile/Scrum environments

• English proficiency at B2 level or higher

Nice to Have:

• Experience with Bluetooth Low Energy (BLE)

• Experience integrating hardware devices and connectivity solutions

• Background in IoT or connected products development

• Experience with Firebase and/or GraphQL

• Knowledge of Kotlin and/or Swift

• Experience with NFC technologies

• Previous experience in Healthcare, MedTech, or industrial environments

• Experience building applications involving real-time data visualization

• Experience working with sensor-based applications

• Experienced in using AI tools in day-to-day workflow

Scope of Services:

• Design, develop, and maintain mobile applications using Flutter and Dart

• Build high-quality, scalable, and maintainable solutions for Android and iOS platforms

• Integrate mobile applications with REST APIs and external services

• Collaborate with cross-functional international teams, including architects, backend developers, QA engineers, and product stakeholders

• Participate in architectural discussions and technical decision-making

• Optimize application performance, reliability, and user experience

• Ensure compliance with mobile development best practices and coding standards

• Publish and maintain applications in App Store and Google Play

• Support integration with connected devices, sensors, and hardware communication technologies

• Participate in Agile ceremonies and contribute to continuous improvement initiatives