• Develop and maintain Android applications using Kotlin and/or Java • Create modern, responsive interfaces using XML and/or Jetpack Compose • Integrate APIs and backend services (REST/GraphQL) • Perform maintenance, bug fixes, and continuous improvements on existing applications • Ensure code quality through best practices, testing, and code reviews • Work with local storage (SQLite, Room) and integrations such as push notifications • Optimize app performance, responsiveness, and load times • Apply security best practices in mobile development • Collaborate with designers, product managers, and other engineers to define solutions • Participate in architecture decisions and technical evolution • Use version control tools (Git) and CI/CD

Role Description Buscamos Pleno ou Sênior para migração de app Android nativo (Kotlin/Java) para Flutter, garantindo entrega funcional em Android e iOS. Qualifications - Experiência comprovada em migração nativo → Flutter - Domínio de Flutter (arquitetura, modularização) e Platform Channels - Base sólida em Android (Kotlin/Java) e iOS (Swift/Objective-C) - Integrações com hardware: câmera, Bluetooth, GPS, áudio - APIs REST, persistência local (sqflite) e gestão de conectividade/offline - Push notifications e serviços do Firebase (incluindo Firebase Crashlytics e analytics) - Uso de libs: go_router, Google ML Kit, QR Code, PDF, SMS autofill Requirements - iOS (obrigatório): - Build, assinatura, certificados/provisioning - Publicação na App Store (via App Store Connect) - Testes em dispositivos reais (incl. permissões, background, notificações) - Conhecimento de limitações do iOS vs Android (Bluetooth, background, etc.) Benefits - Experiência com apps intensivos em hardware e cenários offline - Publicação também na Google Play Store - Testes de integração e troubleshooting cross-platform

Role Description Estamos em busca de um(a) profissional sênior para liderar a migração de um app Android nativo (Kotlin/Java) para Flutter, garantindo entrega funcional em Android e iOS. Qualifications - Experiência comprovada em migração de apps nativos → Flutter - Domínio de Flutter (arquitetura, modularização) e Platform Channels - Base sólida em Android (Kotlin/Java) e iOS (Swift/Objective-C) - Integrações com hardware: câmera, Bluetooth, GPS, áudio - APIs REST, persistência local (sqflite) e gestão de conectividade/offline - Push notifications e serviços Firebase (Crashlytics, Analytics) - Uso de libs: go_router, Google ML Kit, QR Code, PDF, SMS autofill Requirements - iOS (obrigatório) - Build, assinatura, certificados/provisioning - Publicação na App Store (via App Store Connect) - Testes em dispositivos reais (permissões, background, notificações) - Conhecimento das limitações iOS vs Android (Bluetooth, background, etc.) Benefits - Experiência com apps intensivos em hardware e cenários offline - Publicação também na Google Play Store - Testes de integração e troubleshooting cross-platform Se você é apaixonado por desafios técnicos e quer atuar em um projeto de impacto, essa vaga é para você!

Title: Senior Mobile App Developer (Remote US) Location: United States Job Description: Overview HarperCollins Christian Publishing is committed to building a diverse and inclusive team and highly values diverse backgrounds and insights that fuel our innovation. HarperCollins Christian Publishing is looking for a fully remote senior mobile app developer with an emphasis in React Native to serve as a developer on apps for Bible Gateway and Jesus Calling, with millions of monthly users. This role involves maintaining and improving existing codebases, implementing new features, and ensuring app stability and performance while collaborating with a small team of developers and stakeholders. If you're ready to challenge yourself and create exceptional digital experiences for a global audience, we want you on our team. Responsibilities - Manage existing codebases, improving code quality and app stability. The existing apps are primarily React Native / Expo but do contain limited native code (Objective C, Swift, Java, and Kotlin) that may occasionally require debugging. - Implement features as requested by internal stakeholders based on feature roadmaps. - Coordinate with a project manager and a small team of internal and contract developers to deliver features and releases. - Assist with submission process to Apple, Google, and Amazon app stores. - Release new versions of the apps on a consistent cadence (approximately monthly). - Collaborate with designers to ensure a seamless and engaging user experience across all devices. - Follow QA processes and security requirements and use error-tracking systems to fix issues both pre- and post-release. - Participate in code reviews. - Stay current with technical developments in the field of mobile apps to adequately respond to the technology demands of the marketplace. - Stay current with frequent updates to Apple and Google app development standards, including technical and privacy requirements. Qualifications Knowledge: 3-5 years of experience with React Native. Areas of Exposure/Experience: React Native (including audio) and Expo. In-app purchases, (including subscriptions). JavaScript/Typescript. HTML, CSS, and WebViews for HTML formatting and displaying web content. Mobile platforms (Android and iOS). State Management (Redux, Sagas) Project management/bug tracking (e.g., Jira). Figma for receiving designs. Firebase for managing analytics and crash reporting. Agile software development methodologies. AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude). Work Experience: 5+ years of programming experience. A portfolio or record of successful app delivery is a plus. Education: Bachelor's degree in computer science or equivalent experience. Industry Knowledge: Familiarity with platform-specific user interface patterns and trends. Familiarity with Bibles and Bible study is a plus. Skills: - Strong experience with React Native. - Javascript/Typescript - Knowledge of one or more compiled languages (Swift, Objective C, Kotlin, Java). - Knowledge of HTTP-based APIs. - Sweats the details to work on a variety of platforms. - Considers accessibility in development. - Ability to implement screens and flows from mockups provided by designers. - Ability to translate analytics and behavioral data into interface design. - Ability to bring clarity to complex projects. - Adept with current tools and open to using new tools to improve workflow. HarperCollins Christian Publishing is an equal opportunity employer. The salary range for this position is $120,000 - $145,000. We recognize that attracting the best talent is key to our strategy and success as a company. As a result, we aim for flexibility in structuring competitive compensation offers to ensure we are able to attract the best candidates. The quoted salary range represents our good faith estimate as to what our ideal candidates are likely to expect, and we tailor our offers within the range based on the selected candidate's experience, industry knowledge, technical and communication skills, and other factors that may prove relevant during the interview process. In addition to cash compensation, the company provides a comprehensive and highly competitive benefits package, with a variety of physical health, retirement and savings, caregiving, emotional wellbeing, transportation, and other benefits, including "elective" benefits employees may select to best fit the needs and personal situations of our diverse workforce. Job Locations US Category Bible Gateway