At SiDi, one of Brazil's largest science and technology institutes, we are seeking an Android Master Developer to work on a **Mobile** project, creating intelligent solutions that connect people, information, and technology on a global scale. Here, you will 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 are curious, proactive, enjoy solving complex problems, and believe in the power of innovation, join us in building 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 code following best practices, investigate and resolve defects, implement improvements and changes requested by internal and external clients, ensuring software quality and stability. * Actively collaborate with clients and technical teams to define scope, validate solutions, integrate features, and apply agile methodologies. * Share knowledge, provide technical support to partners and colleagues, review code, and contribute to the team’s technical growth. * Participate in innovation initiatives—proposing new ideas, projects, and patents; evaluating the feasibility of innovative solutions; and contributing to SiDi’s technical excellence. * Support continuous process improvement, technical estimation, risk management, and quality activities—including potential national and international travel for collaboration and knowledge transfer. **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 developing Services on Android; * Knowledge of design patterns and architectures such as MVC or MVVM; * Experience building solutions that communicate with other applications; * Experience with databases (SQL and NoSQL); * Knowledge of indexing and search using Apache Lucene; * Knowledge of application performance analysis and optimization; * Knowledge of unit testing; * Basic understanding of application security and privacy. **What Would Be a Plus:** * Experience with search and indexing solutions; * Practical experience with Apache Lucene; * Knowledge of 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 based in **Manaus/AM**, offered under a **hybrid** employment 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 strive for excellence Build together in partnership Think big, act fast **What Do We Offer?** * Quality of Life: 40-hour weekly schedule under CLT employment terms, flexible working hours, and hybrid work options; * Well-being: Wellhub (Gympass), On-site Gymnastics, Office Massage, and Psychological Support (Zenklub); * Health: Medical and Dental Insurance for you and your family; * Children: Daycare allowance for miniSiDiers, 120-day maternity leave, and extended paternity leave; * Future: SiDi co-invests with you in Private Pension; * Education: Study continuation and specialization incentive program; language fluency development support; weekly lecture cycles on global trending topics; * Meals: Flexible Meal Allowance and Food Allowance; * Transportation: Subsidy for commuting and parking for those working at the office; * 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 with social spaces, relaxation rooms, kitchens, coffee machines, and snacks, etc.; * Want more? Dozens of partnerships offering benefits and discounts! For us, inclusion is not merely about adding another person to our team—it’s about integrating differences and unique perspectives. It is precisely this blend of techniques, skills, and stories that inspires us to align diverse viewpoints toward a shared horizon—always moving forward. We operate in 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: **5627** \- **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—the country’s largest technology and innovation parks.** Because those who aspire to create projects that transform the world cannot stop transforming themselves. In **20 years of history**, we have specialized in solving problems and bring with us a portfolio of **over 1,100 projects**, impacting millions of lives—driving innovation and making the future happen now.