Job Summary: Develop and maintain mobile applications for Android and iOS using React Native, integrating complex APIs, hardware, maps, and geolocation into operational and mission-critical applications, ensuring stability and performance. Key Highlights: 1. Development of complex and mission-critical mobile apps 2. Integration with hardware and real-time communication 3. Focus on stability, performance, and reliability **JOB POSTING — MOBILE DEVELOPER (MID-LEVEL / SENIOR)** Company: Atman **SALARY RANGE** R$ 6.000 to R$ 12.000 (CLT) Placement determined by technical assessment. **ABOUT THE POSITION** Position for developing mobile applications focused on digital products, consuming complex APIs, handling real-time data, integrating with hardware and devices, utilizing maps and geolocation, and supporting operational and mission-critical applications. The applications support device configuration, continuous communication with the backend, and operation in environments demanding production-grade stability, performance, and reliability. **RESPONSIBILITIES** * Develop and maintain Android and iOS mobile applications * Implement applications using React Native * Integrate REST APIs and real-time communication (WebSockets) * Integrate with hardware and devices * Implement map and geolocation features * Work on operational and mission-critical apps * Ensure stability, performance, and reliability * Manage state, lifecycle, and asynchronous communication * Collaborate with backend, web frontend, hardware, and product teams **TECH STACK AND REQUIRED TECHNICAL SKILLS** * React Native * TypeScript and JavaScript * Consumption of REST APIs * Real-time communication (WebSockets) * Hardware / device integration * Use of maps and geolocation * Mobile performance concepts * Version control with Git **PREFERRED QUALIFICATIONS** * Conversational Spanish or Italian will be considered a significant advantage. * Experience with native Android development (Kotlin) * Experience publishing apps on app stores * Experience with operational or mission-critical applications * Integration with physical devices **REQUIREMENTS** * Minimum 2 years of mobile development experience * Intermediate to advanced English proficiency * Bachelor’s degree in Engineering, Computer Science, Systems Analysis, or related fields **EXPECTED TECHNICAL PROFILE** * Analytical mindset * Strong technical capability * Ability to solve complex problems efficiently * Attention to production impact, stability, and performance **EMPLOYMENT TYPE AND BENEFITS** Employment type: Full-time, CLT (Consolidated Labor Laws), on-site Working hours: Monday to Friday, 8:00 AM to 5:00 PM Benefits: * Meal allowance * Food allowance * Unimed health insurance plan * Dental insurance plan * Life insurance * Structured career development plan **APPLICATION INSTRUCTIONS** Interested candidates should send their resumes to vagas@atmansystems.com, specifying the area of interest in the email subject line. Job type: Full-time, Permanent CLT Compensation: R$6,000.00 – R$12,000.00 per month Benefits: * Health insurance * Dental insurance * Life insurance * Meal allowance * Food allowance * Transportation allowance