At SiDi, one of Brazil’s largest science and technology institutes, we are seeking a Master Android Developer to work on a **Mobile** project, building intelligent solutions that connect people, information, and technology at a global scale. Here, you’ll tackle real-world challenges, engage with high-level technical work, drive continuous innovation, and collaborate daily with experts who live and breathe technology. If you’re curious, proactive, enjoy solving complex problems, and believe in the power of innovation, join us to build the future—and become part of the \#SiDiers team. **Responsibilities and Duties** * Participate in the entire software development lifecycle—from requirements analysis and architecture definition through coding, testing, maintenance, and evolution of solutions. * Develop and maintain high-quality code; investigate and fix defects; implement improvements and changes requested by internal and external clients—ensuring stability, performance, and reliability. * Collaborate with technical teams and clients to define requirements and scope; produce technical documentation; integrate and validate deliverables via version control and unit testing; and operate within an agile environment, adhering to 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 technical excellence and project quality at SiDi—including occasional participation in collaborative activities and business travel with external teams. **Requirements and Qualifications** **What We Expect From You:** * Solid expertise in Java and Kotlin; * Experience with Android SDK (especially Activities, BroadcastReceivers, ContentProviders); * Experience with Android Jetpack Components; * Experience building Services in Android; * Knowledge of design patterns and architectures such as MVC or MVVM; * Experience developing solutions that communicate with other applications; * Experience with databases (SQL and NoSQL); * Knowledge of unit testing; * Basic understanding of application security and privacy. **Nice-to-Have:** * Knowledge of performance analysis and application optimization; * Experience with search and indexing solutions; * Practical experience with Apache Lucene; * Familiarity with search quality metrics (precision, recall, MRR/NDCG, etc.). **Academic Background:** * Completed undergraduate degree in Computer Science, Computer Engineering, Systems Analysis, Information Systems, or related fields. **Languages:** * Advanced English proficiency for reading, writing, and speaking. **Additional Information** Position located in **Manaus/AM**, offered under a **hybrid work model**, open to candidates willing to relocate. **What We Expect From All \#SiDiers:** Stay open to the new Maintain open and direct dialogue Continuously develop yourself Always do your best Build together in partnership Think big, act fast **What We Offer?** * **Quality of Life**: 40-hour weekly schedule under CLT employment, flexible working hours, hybrid work option; * **Well-being**: Wellhub (Gympass), Workplace Gymnastics, On-site Massage, and Psychological Support (Zenklub); * **Health**: Medical and Dental Insurance for you and your family; * **Children**: Daycare allowance for miniSiDiers, 120-day maternity leave, extended paternity leave; * **Future**: SiDi co-invests with you in Private Pension; * **Education**: Study and specialization incentive program; language fluency support; weekly lecture series on global trending topics; * **Meals**: Flexible Meal Voucher and Food Voucher; * **Transportation**: Transportation subsidy and parking assistance for those working onsite; * **Recognition**: Annual performance bonus and awards for SiDiers who achieve outstanding results; * **Diversity**: Committees focused on Well-being, Diversity, Mental Health, Social Impact, Sustainability, and Women in Technology; * **Modern Offices**: Relaxed, collaborative environments featuring social areas, relaxation rooms, pantries, coffee machines, and snacks, etc.; * **Want More?** Dozens of partner benefits and discounts! For us, inclusion isn’t just about adding another person to our team—it’s about embracing differences and unique perspectives. It’s precisely this blend of techniques, skills, and life stories that inspires us to align diverse viewpoints toward a shared horizon—always moving forward. We foster an environment of equal opportunity, regardless of gender, sexual orientation, religion, or disability. All our positions are open to people with disabilities (PCDs). JOB CODE: **5628** \- **N3** **We are one of Brazil’s largest science and technology institutes—and with a growing team of over 800 SiDiers, we’re already present in Campinas, Manaus, and Recife: Brazil’s leading technology and innovation parks.** Because those who aspire to create projects that transform the world must never stop transforming themselves. In **20 years of history**, we’ve specialized in solving problems and carry more than **1,100 projects** in our portfolio—impacting millions of lives, driving innovation, and making the future happen—now.