Flutter & Dart Developer

Aptino, Inc.; Orlando (FL); On-site; USD 90,000 - 130,000; Full time

Job summary

Aptino, Inc. is seeking a talented Flutter/Dart mobile developer to design, build, and maintain cross‑platform apps for iOS and Android.

You will convert UI/UX designs into responsive interfaces, integrate with REST APIs and Firebase, and contribute to scalable architecture and testable code. Collaborate with design, backend, QA, and stakeholders, and help ship apps to Google Play and App Store.

Qualifications

• Strong hands-on expertise in Dart, Object-Oriented Programming, and Flutter SDK, including widgets, state management, and mobile application architecture.
• Design, develop, and enhance cross-platform mobile applications for iOS and Android using Flutter and Dart.
• Convert UI/UX designs and wireframes into responsive, user-friendly, and high-quality mobile interfaces.
• Integrate applications with REST APIs, third-party services, and backend platforms, including Firebase.
• Apply appropriate Flutter architecture and state-management patterns to build scalable and maintainable applications.
• Strong understanding of Git/version control and experience working with CI/CD pipelines, such as GitHub Actions or Bitrise.
• Familiarity with native iOS (Swift/ Objective-C) and Android (Kotlin/Java) development concepts is preferred.
• Develop clean, reusable, and testable code, including unit and widget testing, and participate in peer/code reviews.
• Troubleshoot application issues, perform debugging, resolve performance bottlenecks, and optimize load times, responsiveness, and animations.
• Maintain and enhance existing Flutter applications, including feature upgrades, bug fixes, and technical improvements.
• Support Google Play Store and Apple App Store release, packaging, deployment, and application submission processes.
• Collaborate with designers, backend developers, QA, and other stakeholders to deliver reliable mobile applications.

Responsibilities

• Develop and maintain cross‑platform mobile apps with Flutter and Dart.
• Implement responsive UI from designs and wireframes.
• Integrate with REST APIs and Firebase backend services.
• Apply Flutter architecture and state management patterns.
• Collaborate with designers, backend, QA, and stakeholders.
• Write unit and widget tests; perform code reviews.
• Maintain CI/CD pipelines and repository practices.
• Optimize performance and load times; fix bugs.
• Deliver apps to Google Play Store and Apple App Store.

Skills

Flutter development

Dart language

Object-Oriented Programming

UI/UX understanding

Cross-platform mobile apps

Architecture & patterns

Tools

Flutter SDK

Git

CI/CD (GitHub Actions, Bitrise)

Firebase

REST APIs

Job description

• Strong hands-on expertise in Dart, Object-Oriented Programming, and Flutter SDK, including widgets, state management, and mobile application architecture.
• Design, develop, and enhance cross-platform mobile applications for iOS and Android using Flutter and Dart.
• Convert UI/UX designs and wireframes into responsive, user-friendly, and high-quality mobile interfaces.
• Integrate applications with REST APIs, third-party services, and backend platforms, including Firebase.
• Apply appropriate Flutter architecture and state-management patterns to build scalable and maintainable applications.
• Strong understanding of Git/version control and experience working with CI/CD pipelines, such as GitHub Actions or Bitrise.
• Familiarity with native iOS (Swift/Objective-C) and Android (Kotlin/Java) development concepts is preferred.
• Develop clean, reusable, and testable code, including unit and widget testing, and participate in peer/code reviews.
• Troubleshoot application issues, perform debugging, resolve performance bottlenecks, and optimize load times, responsiveness, and animations.
• Maintain and enhance existing Flutter applications, including feature upgrades, bug fixes, and technical improvements.
• Support Google Play Store and Apple App Store release, packaging, deployment, and application submission processes.
• Collaborate with designers, backend developers, QA, and other stakeholders to deliver reliable mobile applications.