We have an open opportunity for a **Senior Software Developer** to work on the **mobile application (iOS and Android)** in a **high-scale environment**, with **direct impact on business results**, and **strong collaboration with Product, UX, and Backend teams**. We are looking for a professional with **strong technical maturity**, focused on **quality, performance, and stability**, who feels comfortable working on **mission-critical applications**, serving large user volumes and undergoing continuous evolution. The focus will be delivering **robust, high-performance, and business-aligned mobile experiences**, ensuring stability and scalability. **Responsibilities and Duties** * Develop, maintain, and enhance features of the mobile application (iOS and Android). * Create and improve reusable components aligned with the company’s design system. * Implement integrations with APIs and external services. * Write and maintain unit and integration tests to ensure application quality and stability. * Actively participate in code reviews and technical discussions, contributing to engineering best practices. * Collaborate closely with UX/UI, Backend, and QA teams. * Monitor application performance, stability, and behavior in production, performing troubleshooting as needed. **Requirements and Qualifications** * Solid experience with **React Native (version 0\.76 or higher)** in production applications. * Proficiency in **React 18** and hooks (useState, useEffect, useMemo, useCallback, and custom hooks). * Advanced usage of **TypeScript**, including strong typing, interfaces, and advanced types. * State management using **Zustand** or similar libraries (Redux, MobX). * Styling native components with **Styled Components**. * Navigation using **React Navigation v6** (stack, tab, and drawer). * API integration via **Axios** or **apisauce**. * Automated testing with **Jest** and **React Native Testing Library**. * Experience with **Git** and the **GitFlow** workflow. * Experience with **Java 21** and the **Spring Boot / WebFlux** ecosystem in high-concurrency scenarios. * Experience with **BFF and microservices architectures**, including contract design and API versioning. * Hands-on experience with **end-to-end observability** (logs, metrics, tracing) and production troubleshooting. **Desired Qualifications** ------------------------- * Local persistence using **MMKV** or **AsyncStorage**. * Experience with **Firebase** (Analytics, Crashlytics, Remote Config). * Use of monitoring tools such as **Datadog** or **Bugsnag**. * Integration with payment gateways (**Apple Pay**, **Google Pay**). * Implementation of push notifications using **FCM** or **Salesforce Marketing Cloud**. * Experience with **deep linking**, **Universal Links**, and **App Links**. * Familiarity with **CI/CD** and **Fastlane**. * Knowledge of REST API security (OAuth2, JWT) and remote configuration (Spring Cloud Config). **Differentiators** ---------------- * Prior experience with **e-commerce** or **digital retail** applications. * Knowledge of the **Apple** and **Google** ecosystems for app publishing, versioning, and maintenance. **Additional Information** * Work model: Hybrid (On-site\\Remote) * Availability to work in **Eldorado do Sul/RS** * On-site cafeteria; * TotalPass (via cooperative); * Health & Dental Plan (via cooperative); * Chartered transportation; * Exclusive discounts at Panvel; Caring is at our core. For over 55 years, we’ve been building a story that places at its center what matters most: people. Whether through retail, distribution, or our products and services, we are committed to delivering health and well-being — always and in the best possible way — to our customers, employees, investors, and partners. We work daily to build a more balanced society and environment, envisioning above all the development of a better world. Our mission: To provide health and well-being for people. Our vision: To be the best in sustainable and innovative health and well-being products and services. Our values: Be ethical, Work collaboratively, Develop people, Deliver excellence in service, Be agile, and Commit to results. The Panvel Group comprises three businesses: **Panvel Pharmacies**, the largest pharmacy chain in southern Brazil, with over 600 stores selling medicines and hygiene and beauty products. We operate across multiple cities in Rio Grande do Sul, Santa Catarina, Paraná, and São Paulo. The **Distribution Center (DCs)**, one of Brazil’s leading pharmaceutical distributors and the country’s pioneer in this segment. Our Distribution Centers are located in Eldorado do Sul/RS and São José dos Pinhais/PR. The **Lifar Industrial Pharmaceutical Laboratory**, a division dedicated to developing and manufacturing cosmetics, medicines, and food products. In addition to producing items for major brands, Lifar also manufactures private-label products for Panvel.