Hi, we’re Trio! Trio was founded in 2020 alongside the launch of the Open Banking movement in Brazil. We believe that through this movement, better financial products and services will be offered to people—and that technology must contribute to this process by ensuring security, as well as human and social development. We are a spinoff of ateliware, a custom software development company with over 12 years in the market, where applications used by thousands of people worldwide—such as Pipefy—were born. Our goal in hiring an experienced **Android Developer** is to strengthen our technology team. As we grow rapidly, we seek a strategic, multifunctional, and proactive professional to drive the evolution of Trio’s internet banking app. **Responsibilities and Duties** #### **What will this professional do daily?** #### **Development and Maintenance** * Develop and maintain the Android internet banking app using Kotlin/Java and the Android SDK * Implement new features following Material Design and UX/UI standards * Perform evolutionary and corrective maintenance on the existing app * Optimize performance across different devices and Android versions #### **Security and Compliance** * Implement security practices specific to financial applications * Ensure compliance with Central Bank regulations and banking security standards * Implement biometric authentication, Android Keystore, and data encryption * Apply code obfuscation and anti-tampering techniques #### **Integration and APIs** * Integrate the app with REST APIs and backend services of the institution * Implement secure calls for processing financial transactions * Work with secure communication protocols and certificate pinning * Manage network states and implement offline-first strategies #### **Architecture and Standards** * Implement modern architectures (MVVM, Clean Architecture) * Apply SOLID principles and design patterns * Manage dependencies and library versioning #### **Quality and Testing** * Write unit, instrumented, and UI tests * Participate in code reviews and uphold coding standards * Implement CI/CD practices for Android * Conduct testing across multiple devices and OS versions #### **Monitoring and Performance** * Implement analytics, crash reporting, and APM tools * Monitor performance metrics and user experience * Optimize device resource usage (CPU, memory, battery) * Implement caching strategies and data management #### **Publication and Deployment** * Manage the build, signing, and Play Store publishing process * Implement gradual release strategies and A/B testing * Configure and maintain CI/CD pipelines * Manage application versioning and changelog **Requirements and Qualifications** #### **Your profile should include:** **Requirements and Qualifications:** * Advanced knowledge of Kotlin/Java and the Android SDK * Experience delivering production-ready, continuously used projects * Experience with MVVM and Clean Architecture * Published apps on the Play Store, including experience with review and release processes * Participation in code reviews and mentoring of development teams #### **Preferred Qualifications:** **Preferred Qualifications:** * Prior experience in fintechs and/or financial market companies * Knowledge of Central Bank regulations and banking security standards * Clear, concise communication and proactivity **Additional Information** #### **What do we offer you?** * Competitive compensation and incentives * On-site work with unlimited sparkling water and soft drinks * Opportunities and support for continuous learning and exploration of new topics—because **your growth is part of ours!** #### **Our mission is to improve financial flows with cutting-edge infrastructure.** That’s why we seek and develop talent and skills focused on the future. We’re a team of committed professionals operating across Brazil, Latin America, and beyond! Our values are: * **Simplicity**: We understand that complex processes, languages, and projects must be translated into accessible forms * **Reliability**: We take pride in knowing that our united team functions as a single organism—each person aware of their role and all acting for one another * **Innovation**: We share the vision that technology is transformative for everyone—and it is technology that unites us * **Transparency**: Everyone on the team has the right to know about the company to the same extent the company has the right to know about us * **Agility**: Agile methodology is our mantra: plan thoroughly and execute more and better—with limited resources, intelligence, and creativity * **Security**: We are fully aware that the commitment made upon hiring will be honored by both parties. We want to transform your professional journey by building a place that prioritizes your personal advancement first. At Trio, we want—and will—evolve, together.