Experienced Flutter Developer (Contractor)

Description At Stack Builders, we are passionate about building high-quality code, and we believe it all starts with great, talented people. From the beginning, we’ve focused on strengthening our workplace culture by supporting and caring for each other’s growth and well-being. Thanks to our team, we’ve been recognized as a Great Place to Work since 2021. If you’re interested in joining our team, please note that this talent pool has a slightly different hiring approach. Even though we are not actively hiring for open Flutter developer positions at the moment, we’d still love to hear from people interested in joining our International team soon! Based on our expanding needs, we will need additional Flutter Developers. You might not hear back from us immediately, but we’ll review all candidate applications. If the timing isn’t right on your end, we can always try again in the future! We’d love to keep expanding our team with talented folks from diverse backgrounds with experience and skills that align with our values and working methods. Ready to get into the techie details? Keep reading! *IMPORTANT to be considered for this position: Your application and CV must be in English. Requirements Flutter Developer – Job Requirements Advanced written and spoken English skills. You will interact directly with our US clients. 3+ years of experience building mobile applications using Flutter, production-ready Android and/or iOS apps. Bachelor's degree in engineering, computer science, or related field. Solid proficiency in Dart, including asynchronous programming (Future, Stream, async/await) and object-oriented programming principles. Deep understanding of Flutter widgets, layouts, navigation, and app lifecycle. Experience integrating RESTful APIs, including JSON parsing/serialization, authentication tokens, and API error handling. Strong experience with Git, including branching strategies, pull requests, and collaborative workflows using platforms like GitHub or GitLab. Ability to implement pixel-perfect UI from design tools such as Figma and build responsive layouts across multiple device sizes. Experience building and deploying apps through Google Play Console and/or App Store Connect, with knowledge of platform-specific considerations. Experience implementing push notifications using Firebase Cloud Messaging (FCM). Flutter Developer, Nice-to-Have Skills Experience working with Firebase services such as Authentication, Firestore, Realtime Database, and Analytics. Basic knowledge of native mobile development using Kotlin/Java (Android) or Swift (iOS), including experience with platform-specific integrations or plugins. Experience with CI/CD and automation tools, including GitHub Actions, Codemagic, and Fastlane. Experience with local data storage solutions such as SQLite, Hive, or SharedPreferences. Experience in releasing and maintaining production apps, including managing store compliance and updates. Experience working in Agile or Scrum environments; familiarity with tools such as Jira, Linear, or similar platforms. Experience optimizing application performance, reducing app size, improving runtime efficiency, and managing memory usage. Experience extending Flutter beyond mobile (e.g., Flutter Web or Desktop). Benefits Benefits 100% remote and flexible modality. A human-centered experience in a people-first company. Challenging, full-time, and long-term projects with globally admired companies. A strong learning culture and regular pairing sessions to build high-quality code while sharing knowledge. Opportunities for conference participation, OSS contributions, tutorials, blog posts, and technical talks. Exceptionally talented and passionate coworkers. Timely payments, with the flexibility to choose the payment date modality that best suits your needs. A Stack Builders community to support you and grow with you! Ready to become our next builder? We hope you’ll join us! More than our EEO statement, this is what makes us a Great Plac

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