We are looking for a Mobile Developer with solid experience in React Native to strengthen our technology team. If you are driven by challenges, value performance, code quality, and user experience, we want to meet you! **Responsibilities and duties** * Develop and maintain mobile applications using React Native; * Collaborate with backend, frontend, product, UX/UI, and QA teams to deliver high-impact solutions; * Ensure application performance, security, and scalability; * Actively participate in code reviews, testing, and implementation of development best practices; * Identify and resolve bugs and technical bottlenecks quickly and effectively. **Requirements and qualifications** * Proven experience in React Native development; * Proficiency in JavaScript (ES6+) and TypeScript; * Experience consuming REST APIs; * Familiarity with Git and version control practices; * Knowledge of the mobile app lifecycle (Android/iOS); * Experience integrating third-party libraries; * Understanding of UX/UI best practices and app publishing processes (Play Store / App Store). Nice-to-have: * Experience with Firebase, Fastlane, and CI/CD pipelines; * Knowledge of automated testing (Jest, Detox, etc.); * Experience supporting production applications with large user volumes. **Additional information** Benefits Meal or food allowance of BRL 30.00 per day (no 20% deduction); Transportation allowance or fuel voucher (no 6% deduction); Unimed health insurance plan (monthly fee covered by the company); Uniodonto dental insurance plan; Merit bonus; Gympass (Wellhub); Monthly multivitamin kit; Essential Nutrition products available in cafeterias; Life insurance; 50% discount on our products; Discount network at stores and restaurants; Year-end gift; Meditation/rest room; Health promotion program offering medical, pediatric, and psychological care; Be Generous Project – nutritional supplementation for employees during pregnancy; Partnerships with universities, language schools, and early childhood education institutions; Education assistance scholarship covering up to 50% of course fees; Working hours: Monday to Thursday, 8:00 AM–6:00 PM; Friday, 8:00 AM–5:00 PM (On-site position). Essentia Group brings together the brands Essentia Pharma, Essential Nutrition, Essentia Technologies, Noorskin, and Be Generous. With over 130 products and 1,600 employees, Essentia Group brands promote health, wellness, quality, and innovation. Each of our companies represents a distinct opportunity to serve humanity through the development of products and services that broaden the concept of health and expand possibilities for living better and enjoying life to evolve. **Working at Essentia Group means pursuing continuous evolution.** If you also strive to become your best self every day, join us!