Android Engineer

• Development and maintenance of iOS and Android mobile applications;
• Collaborate with the design team to define new features;
• Ensure application performance and quality;
• Identify and fix bugs and performance bottlenecks;
• Collaborate with the team to define, design, and deliver new features.

iOS/Android Developer

• Develop and maintain native Android applications using Kotlin and Jetpack components.
• Implement complex, responsive interfaces following platform design guidelines (Material Design).
• Integrate REST/GraphQL APIs using secure authentication, versioning, and best practices for caching.
• Ensure modularity and scalability of the codebase using Clean Architecture and MVVM.
• Create and maintain unit, instrumented, and UI tests to ensure release quality.
• Participate in code reviews and define development standards.
• Identify and fix performance, memory, and network issues.
• Collaborate with backend, QA, product, and design teams to deliver business-aligned solutions.
• Configure build, test, and release pipelines (Google Play), automating processes with Gradle and CI/CD tools.

Android Mobile Developer - Mid-level

• Cutting-edge Development: Build features and architectural components using Kotlin and the MVVM architecture.
• Modern Interfaces: Develop rich, accessible user interfaces using XML and Jetpack Compose.
• Quality Assurance: Ensure the quality of deliverables through rigorous code reviews and the implementation of unit and instrumented tests.
• Strategic Collaboration: Actively participate in team ceremonies, support the technical detailing of solutions, and collaborate closely with stakeholders.
• Platform Evolution: Contribute to the setup and improvement of Continuous Delivery (CI/CD), support project modularization and the componentization of features.
• Mentoring and Leadership: Serve as a technical reference for the team, share knowledge, and contribute to the professional development of team members.

Senior Android Mobile Developer

• Maintain and develop new features for national and international clients using Kotlin;
• Optimize interfaces to improve performance and ensure good app usability;
• Write efficient, reusable, and maintainable code;
• Discuss potential solutions with UX, Back-end, and Front-end teams;
• Implement automated testing.

Android Developer

• Manage the full software development life cycle – designing, coding, testing, and maintaining complex Android applications
• Collaborate with cross-functional teams to contribute to technical designs, refine development standards, and ensure code quality
• Own feature development from requirements to delivery, ensuring performance, security, and reliability
• Work with developers, architects, testers, and analysts to create technical designs for feature groups
• Mentor developers, promote best practices, and ensure high-quality code standards
• Conduct code reviews and ensure 100% code review coverage
• Write unit and functional tests; assist QA with reviewing, creating, and delivering functional automation tests

Senior Android Developer

• Develop new Android applications and evolve existing architectures using Kotlin and Java.
• Create user interfaces and flows, integrating services, APIs, and Android system components.
• Propose architectural solutions, design patterns, and best practices to ensure app performance, security, and quality.
• Work on building new modules and features from planning through implementation and delivery.
• Perform corrective and evolutionary maintenance as needed, ensuring stability and compatibility.
• Investigate complex issues by performing advanced debugging and log analysis using logcat, including application and framework layers (SELinux, permissions, etc.).
• Adapt and optimize system apps for new Android versions, taking API and OS behavior changes into account.
• Actively participate in code reviews, contributing to internal standards and sharing knowledge with the team.
• Collaborate on an international project, using English for reading, writing, and conversation.

• Design and implement automation frameworks using Espresso, UI Automator, and Appium;
• Execute and maintain end-to-end and instrumentation tests on physical devices and emulators;
• Integrate tests into CI/CD pipelines (Jenkins, GitLab, GitHub Actions), including parallelization and orchestration;
• Monitor and manage device farms (local and cloud — Firebase Test Lab, AWS Device Farm, BrowserStack);
• Collect quality metrics and create dashboards and alerts to analyze stability and performance;
• Collaborate with development teams to analyze failures, triage bugs, and continuously improve processes;
• Ensure security, accessibility, and compliance with Android platform policies.

Test Automation Analyst – Android

• Design, develop, and maintain modern Android applications using Kotlin and Android best practices
• Build responsive and scalable mobile solutions focused on exceptional user experience
• Collaborate closely with Product, Design, QA, and Back-End teams throughout the development lifecycle
• Implement intuitive and visually appealing interfaces aligned with Android design guidelines
• Integrate applications with RESTful and/or GraphQL APIs and backend services
• Optimize applications for performance, scalability, and compatibility across multiple Android devices and screen sizes
• Write clean, maintainable, and testable code following architecture patterns such as MVVM, MVP, or MVI
• Create and maintain unit tests and contribute to automation testing efforts
• Troubleshoot, debug, and resolve application issues efficiently
• Contribute to CI/CD and continuous delivery practices
• Stay current with emerging Android technologies, tools, and development trends.

• Assist with Android version updates, supporting investigation, analysis, and adaptation of software for the smartphone modem;
• Study, analyze, and implement software for mobile communication protocols;
• Support the release process to mobile network operators, including extensive involvement in software validation;
• Collaborate with other software development teams across different areas.

Android OS and Modem Development Intern

• Liderar tecnicamente o time Android nas iniciativas relacionadas ao Onboarding Digital, assegurando qualidade, consistência e confiabilidade das entregas;
• Atuar como referência técnica, apoiando o desenvolvimento do time por meio de mentorias, feedbacks contínuos, code reviews e direcionamentos técnicos;
• Trabalhar de forma colaborativa com Produto, UX, QA, Arquitetura e demais stakeholders, equilibrando necessidades técnicas e de negócio;
• Atuar no fluxo upstream das iniciativas, contribuindo com decisões técnicas alinhadas aos requisitos funcionais, não funcionais e ao valor de negócio;
• Garantir o monitoramento contínuo, observabilidade, estabilidade e acompanhamento de métricas de saúde técnica do produto;
• Participar da definição e evolução das soluções técnicas, contribuindo com desenhos arquiteturais low level (C3/C4) e alinhamento com definições high level;
• Apoiar o fluxo operacional do time, removendo impedimentos técnicos e alinhando dependências entre equipes;
• Atuar na análise técnica de causa raiz de incidentes críticos, conduzindo soluções estruturais e ações de melhoria contínua;
• Contribuir ativamente nas discussões de roadmap técnico e evolução do ecossistema mobile da organização.

Dev Android Tech Lead – Segmento Financeiro

• Develop and enhance Android applications using Kotlin, ensuring quality and performance.
• Design scalable, modular solutions, applying architectural best practices (Clean Architecture, SOLID).
• Implement and maintain dependency injection (Hilt, Dagger, or Koin).
• Create and maintain unit tests to ensure delivery stability.
• Investigate complex issues, propose creative solutions, and drive them to resolution.
• Contribute to the continuous improvement of CI/CD pipelines and mobile automation.
• Collaborate with iOS, Product, and Design teams to maintain technical alignment and consistent experiences across platforms.
• Participate in technical discussions involving cross-platform decisions within the mobile ecosystem.

Mid-level Android Developer, Kotlin

• Evolve and maintain the Android frontends of the native chat, with a focus on scalability, performance, and user experience
• Define and promote mobile architecture and engineering best practices
• Design and evolve reusable components (SDKs)
• Work in partnership with Product, Design, and Backend teams on discovery and delivery
• Ensure quality, accessibility, observability, and security in deliveries
• Support the evolution of conversational capabilities (e.g., transactional chat, human fallback)
• Write code oriented toward modularization, reuse, and low coupling
• Adhere to the design system and UI standards
• Monitor performance (render time, resource consumption, ANR)
• Ensure testability and adequate coverage
• Pay attention to accessibility (TalkBack, navigation, contrast)
• Observability as a requirement (structured, monitorable logs).

Android Developer (Mid/Senior)

• Work with BDD, TDD and pull requests, promoting continuous code review.
• Work using an incremental development approach.
• Monitor deliveries, assessing their impacts.

Senior Software Engineer, Android

• Develop new features and improvements for mobile development projects
• Participate in the development of Android applications and services, primarily at the framework level
• Work on cybersecurity features within Android systems
• Operate in a collaborative, fast-paced environment using agile development methodologies
• Learn and share best practices related to coding and software architecture
• Coordinate technical alignment with domestic and international stakeholders

Mid-level Android Developer, Applications, Framework

• Participate in daily stand-ups, backlog refinement sessions and sprint planning
• Develop new Android features
• Fix bugs and evolve the project architecture
• Work closely with QA, Product, UX and Design
• Conduct code reviews
• Implement and maintain automated tests

Senior Developer – Android

• Support a media industry client in collaboration with CI&T;
• Write clean, maintainable code using software development best practices;
• Design solutions using appropriate frameworks;
• Identify opportunities for improvement;
• Work collaboratively with other team members, including developers, designers and stakeholders, to ensure project success;
• Perform code reviews;
• Ensure a stable and productive development environment;
• Provide technical leadership as a team reference, influencing and mentoring more junior developers;
• Be available to onboard and acclimate new developers;
• Guide and facilitate pair programming, fostering rich technical discussions and proposing code improvements;
• Develop a sense of ownership over what is being built;
• Be open to learning widely adopted tools in the technology stack;
• Actively participate in solving complex problems, identifying improvement opportunities and proposing innovative solutions;
• Understand the client's business context, how a media company operates, the impact of developed features and their relationship with users;
• Visualize and communicate opportunities for improvement for the business and for others' journeys;
• Seek the balance between technical matters and delivery, knowing when to dive deeper into an investigation or ask for help.

• Develop and maintain Android app features using Kotlin.
• Contribute to the evolution of the app architecture based on Clean Architecture.
• Work in a modularized application environment, ensuring code organization, reuse, and scalability.
• Build user interfaces using Jetpack Compose.
• Implement and maintain dependency injection using Hilt.
• Write and maintain unit tests to ensure code quality and reliability.
• Collaborate with product, design and backend teams to define and deliver new features.
• Participate in code reviews and contribute to development best practices.
• Drive continuous improvements in the app's performance, quality, and architecture.

Senior Developer – Android, Kotlin

• Work across the full software development lifecycle, from requirements analysis and architecture definition to coding, testing, maintenance, and evolution of solutions.
• Develop and maintain high-quality code, investigate and fix defects, and implement improvements and changes requested by internal and external stakeholders, ensuring stability, performance, and reliability.
• Collaborate with technical teams and clients to define requirements and scope, produce technical documentation, integrate and validate deliveries via version control and unit testing, and work in an agile environment following best practices in architecture and development.
• Contribute to technological innovation by conducting technical research, proposing new ideas, process improvements, and initiatives that may lead to patents.
• Provide technical support to partners and colleagues, share knowledge, estimate effort, identify technical risks, and contribute to the technical excellence and quality of SiDi projects, including possible participation in activities and business trips to collaborate with external teams.

• We are looking for a Senior Android Kotlin Mobile Developer to build high-performance native applications, focusing on smooth user experiences and robust integrations. With at least 5 years of proven experience, you will work on the architecture of complex apps (e.g., POS, fiscal receipts), performance optimizations, and technical mentoring.
• Design and implement MVVM architectures with Koin, Jetpack Compose and dynamic modularization.
• Develop advanced integrations (Retrofit, SOAP/REST web services, Firebase, push notifications).
• Optimize performance and perform bottleneck analysis.
• Ensure an offline-first approach using Room, WorkManager and caching/synchronization strategies.
• Lead code reviews, refactorings and migrations (e.g., XML to Compose, Kotlin Multiplatform).
• Implement security (biometrics, encryption, certificates) and accessibility (Material 3).
• Mentor junior and mid-level engineers, define standards and contribute to mobile CI/CD (Gradle).
• Monitor applications with Crashlytics.

Senior Mobile Developer – Android, Kotlin

• Work on updating Android versions
• Support investigation, analysis and adaptation of Kernel software on smartphones.

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