**We are restless, innovative, full of ideas, and always ready for action.** Because the challenge of developing the best solutions to drive the business of thousands of companies is also what motivates us to turn our ideas into results, creating great experiences for our people and evolving the tech ecosystem. A GPTW company that takes pride in its people and strives to offer growth, learning journeys, and values diversity in people and thought. Because it's more than just a job. It's a position at Senior. To help propel the tech ecosystem forward with us, learn more about Senior's Technology Manifesto **LEARN MORE ABOUT THIS OPPORTUNITY:** This opportunity is to work as a Software Developer Java III within our Business Management | ERP solution, in a squad focused on electronic documents and messaging. Join the team behind the largest electronic document transmission system in the country. Here, you will apply your knowledge in multithreading, unit testing, clean code, non-relational databases, and fully explore the performance capabilities of the language. We use agile methodologies aiming to deliver innovative, high-value solutions to boost our customers' businesses, leveraging updated technologies, architectures, and software languages to build a completely cloud-native solution. **Main Responsibilities:*** Work in a development squad focused on procurement and supply modules of the Business Management | ERP solution, aimed at large enterprises with high volumes of tax filings. * Develop and maintain features using Delphi, applying object-oriented concepts and good programming practices. * Integrate X Platform capabilities within the ERP Composable concept, promoting flexibility and scalability in solutions. * Actively participate in agile ceremonies (Scrum/Kanban), collaborating with the team to deliver innovative, high-value solutions. * Perform queries and data manipulations in Oracle and SQL Server databases, ensuring performance and data integrity. * Contribute to performance analysis of routines and optimization of SQL commands. * Develop unit tests to ensure code quality. * Collaborate in integrating electronic documents and tax functionalities within the ERP. **WE ARE LOOKING FOR SOMEONE WHO:*** Has experience with Java 17, including Hibernate, Spring Boot, and Spring Data; * Has knowledge in HTML5, CSS, and cross-browser development; * Has experience with RabbitMQ, Docker, microservices, and event-driven architecture; * Has experience with JavaScript frameworks, especially Angular and the PrimeNG library; * Is proficient in PostgreSQL and fundamentals of integrations via REST Web Services; * Is familiar with AWS, distributed caching, distributed locking, and development practices focused on performance and scalability. **WHAT CAN STRENGTHEN YOUR APPLICATION:*** Completed or ongoing bachelor’s degree in Computer Science, Information Systems, or related fields. * Experience with electronic tax documents such as NF-e, NFS-e, MDF-e, NFC-e, CF-e, eSocial, EFD-Reinf, GNRE, PAF-ECF. * Experience with MongoDB, Linux, EFCore, Moq, and practices related to technological and architectural updates. * Knowledge of agile methodologies and experience managing development teams. **Our benefits:*** Medical and dental insurance; * Life insurance - PPLR - Profit and Results Participation; * Wiipo card with flexible benefits * Wiipo Club with exclusive discounts and advantages - TotalPass - Gym and wellness benefit; * Flexible working hours; * Citizen Company: Extended maternity and paternity leave; * Birth assistance; * PET assistance; * Senior Corporate University; * Career development plan **The Senior way of being:** Our culture respects individualities and empowers people through innovation, collaboration, and autonomy. We believe in plurality because experiences and perspectives are unique, offering opportunities that include diversity of people and thoughts. This is how we achieve great results, driving customer success through the dedication of incredible people. These details are specific to this opportunity, but you can check all our openings and learn even more about being part of Senior on our careers page: senior.com.br/carreiras **We're more Senior!** We are a Brazilian company recognized as one of the largest software developers for enterprise management in the country. With over 35 years of history and offices spread across the country, we take pride in the digital transformation our organization drives for so many businesses. Beyond Brazil, we have expanded internationally by acquiring a company in Colombia, making us present across LATAM. With one of the most comprehensive portfolios for high performance, the quality of our solutions results from the work of more than 2,700 people. Our purpose of "Empowering People and Driving Business" and our passion for technology make us a GPTW. For seven consecutive years, we continue as a Great Place to Work®, with amazing people making Senior an increasingly great place to work. And so we continue growing, valuing each journey and showing that Senior's expansion and strength come from engaged, fearless people—because driving innovation is part of who we are. Discover more about us at www.senior.com.br or through our social media: