Senior Mobile React Native Engineer

Description

**How ambitious are your goals? Are you ready for new challenges?** \#VemPraTQI TQI is a technology and innovation company that, for over 30 years, has developed solutions, systems, platforms, and processes to support and accelerate its clients’ businesses in Brazil and abroad. With a strong focus on the financial ecosystem, TQI also serves sectors such as telecommunications, transportation, and aviation, among others. Specialized in highly critical projects and delivering tailor-made solutions for diverse client needs, TQI remains faithful to its technological DNA—quality and innovation—operating with efficiency and excellence throughout the entire lifecycle, from design to delivery, enabling clients’ business strategies and digital transformation journeys. With offices in Uberlândia (MG) and São Paulo (SP), and professionals located across hundreds of cities, TQI has earned and maintained the Great Place to Work (GPTW) certification for over six years, and ranks among the GPTW Top 80 Technology Companies, reaffirming its commitment to fostering a diverse, innovative, and high-performance work environment. **What are we looking for?** We are seeking a Mobile React Native Developer to build and evolve modern, scalable, and high-performance applications—with emphasis on user experience, quality, and sound software engineering practices. We seek collaborative professionals with an ownership mindset, a strong focus on quality, and solid cross-platform mobile development experience. **What you need to know:** * Experience with Expo (React Native) and related tools; * Advanced TypeScript; * Experience with react-native-web, including responsiveness, UI/UX adaptations, and web-specific testing; * Proficiency in state management using Zustand, Context API, or similar libraries; * Experience with React Query for data fetching; * Experience with React Hook Form and validation using Zod or similar libraries; * Hands-on experience with observability and monitoring using Dynatrace, Crashlytics, or equivalent tools; * Experience integrating Firebase (Auth, Firestore, Storage, Remote Config); * Experience writing tests using Jest and Testing Library for React Native; * Knowledge of software development best practices, including SOLID principles, Clean Architecture, separation of concerns, ESLint, and Prettier; * Experience with React Navigation, including deep linking and nested navigators; * Strong communication skills and ability to work effectively in teams. **Nice-to-have:** * Experience with native iOS and Android modules; * Experience with CI/CD using Azure DevOps; * Experience in multi-repo environments. **What will you do?** Your key responsibilities will include: * Developing and evolving mobile applications using React Native and Expo; * Maintaining and evolving the web version using react-native-web; * Implementing scalable, performant, and sustainable solutions; * Building integrations with Firebase and other required services; * Designing and maintaining clean, well-organized architectures; * Ensuring quality through automated testing and development best practices; * Participating in code reviews and technical discussions; * Collaborating with Product Owners, Designers, QA, and other team members to deliver new features; * Contributing to continuous improvement of the team’s technical and architectural practices; * Working in agile environments using Scrum and/or Kanban. **Why join TQI?** * Continuous Innovation: You’ll be at the forefront of software technologies and have the opportunity to work on impactful projects. We’re passionate about technology, innovation, and constant evolution; * Professional Development: We offer an environment that values and invests in our professionals’ continuous growth and learning; * Real Impact: Your work will help transform how major financial institutions operate, delivering solutions that make a tangible difference in our clients’ day-to-day operations; * Collaborative Culture, People-Centric: You’ll join diverse, high-performing teams in a relaxed, dynamic, and collaborative environment. To us, everyone’s voice and contribution are essential to building our solutions and shaping our decisions. Here, people truly make the difference. \#VemPraTQI