Android Engineer

Our partner is looking for a Pessoa Especialista Mobile Android based in Brazil. This is a senior, hands-on Android engineering role focused on the evolution of a sophisticated mobile chat experience.

• Define and continuously evolve technical standards and development practices for the Android frontend of the chat experience.
• Develop and maintain reusable visual components aligned with the Design System, ensuring consistency across colors, typography, spacing, and interaction patterns.
• Build responsive and dynamic interfaces using Jetpack Compose and develop Custom Views when advanced UI requirements demand them.
• Implement efficient communication between application components using StateFlow, SharedFlow, LiveData, and other appropriate state-management approaches.
• Integrate Android applications with REST APIs, including custom HTTP interceptors for authentication and headers, as well as Socket-based real-time communication.
• Contribute to scalable application architecture using patterns such as MVVM and Clean Architecture.
• Ensure mobile applications meet high standards for accessibility, security, observability, reliability, and performance.
• Lead and participate in thorough code reviews, identifying opportunities to improve architecture, maintainability, performance, and security.
• Design and maintain Android CI/CD pipelines supporting secure artifact signing, testing, release, and distribution.
• Manage application publication through Android App Bundles for both testing and production environments.
• Promote effective Git workflows and version-control practices, including conventional commits, cherry-picking, and squashing.
• Mentor other developers and contribute to the dissemination of technical knowledge through best practices, technical discussions, and potentially tech talks.
• Support the evolution of mobile engineering practices, Design Systems, release processes, and overall technical consistency.

• Advanced proficiency in Kotlin, including effective use of data classes, classes, enums, and modern language features.
• Strong experience with Jetpack Compose for building responsive, reusable, and customized Android interfaces.
• Advanced knowledge of the Android SDK, including Activity and Fragment lifecycles and effective use of LifecycleOwner and LifecycleObserver.
• Solid experience integrating Android applications with REST APIs and configuring HTTP interceptors.
• Practical experience implementing Socket connections and real-time communication.
• Strong understanding of MVVM, Clean Architecture, and Android Design Systems.
• Advanced knowledge of Coroutines and Flow, including StateFlow and SharedFlow for asynchronous state management.
• Experience creating and maintaining Android CI/CD pipelines using tools such as GitLab, Jenkins, or Bitrise.
• Experience with secure Android artifact signing, release management, and publication through Android App Bundles.
• Strong Git knowledge, including conventional commits, cherry-pick, squash, and collaborative version-control workflows.
• Experience implementing mobile accessibility practices, including TalkBack.
• Knowledge of mobile observability and fundamental mobile application security practices.
• Experience with automated testing for Android applications, including unit and instrumented tests, is highly valuable.
• Experience working with Feature Flags in large-scale mobile applications is a plus.
• Knowledge of WebView and hybrid-content integration is advantageous.
• Experience contributing to or evolving a product Design System is desirable.
• Strong technical communication and collaboration skills, with the ability to provide constructive code-review feedback and mentor other engineers.
• Ability to work independently, solve complex technical problems, and contribute proactively to architectural and engineering decisions.
• A continuous-learning mindset and genuine curiosity about emerging mobile technologies and engineering practices.

• Work arrangement: Fully remote.
• Career development: Opportunities for continuous professional growth and technical evolution.
• Technical impact: Opportunity to influence Android architecture, engineering standards, Design Systems, and development practices.
• Learning environment: Collaborative culture centered on curiosity, innovation, knowledge sharing, and excellence.
• Technical leadership: Opportunity to act as a technical reference and mentor other professionals.
• Inclusive environment: Commitment to accessibility and inclusive participation throughout the recruitment and working experience.
• Modern engineering practices: Exposure to contemporary Android development, CI/CD, observability, accessibility, security, and AI-driven technology environments.
• Work-life balance: Flexible remote environment designed to support sustainable professional development.