**We at Matrix exist to accelerate the transformation of the Brazilian energy market.** We operate in the Free Energy Market, selling renewable, competitive, and certified energy to free consumers. We are a company of innovative, dynamic, and agile people, and we believe that our employees' results and performance should be recognized. We are one of the best companies to work for, certified by GPTW. **Responsibilities and duties** **Your day-to-day at Matrix:** * Develop and maintain RESTful APIs and microservices using Java and Spring Boot; * Implement system integrations, ensuring security and efficiency; * Apply good practices in data structures and algorithms to develop high-performance solutions; * Create unit and integration tests (JUnit, Mockito) to ensure code quality; * Work in agile teams using Scrum or Kanban. **Requirements and qualifications** **To take on this challenge, you must have:** * Bachelor's degree in Computer Science, Software Engineering, or related fields; * Practical experience with Java (8\+) and Spring Boot; * Knowledge of SQL (PostgreSQL, MySQL); * Experience with JUnit and Mockito for automated testing; * Understanding of microservice architecture and design patterns; * Experience with Scrum or Kanban; * CI/CD tools: Experience with Git and knowledge of Jenkins or GitHub Actions **Differentiators:** * Containers and Cloud: Basic knowledge of Docker and Kubernetes; * Knowledge of non-relational databases: NoSQL (MongoDB, Redis); * Familiarity with monitoring tools such as Prometheus or Grafana; * Knowledge of messaging systems (RabbitMQ, Kafka, PubSub); **Additional information** **What we offer:** * Be the protagonist of your development in an environment full of opportunities, learning, growth, expansion, and challenging projects; * High-quality healthcare with Omint: access a top-tier national health and dental network through Omint; * Alelo Pod card for your flexible expenses with Meal and Food allowances, accepted at major restaurant and supermarket chains; * Our work schedule is flexible and sustainable; * Mobility: you can choose the option that suits you best! Transportation allowance, fuel assistance, or parking; * Total Pass: an online platform dedicated to promoting quality of life, health, and well-being. Plans provide access to gyms, studios, and online services, with exclusive Matrix discounts, covering not only you but up to 3 dependents; * Group life insurance; * Profit and Results Sharing (PLR), based on goal achievement and performance; * Work with a fantastic team in a collaborative environment striving to build a bright and more sustainable future. ### **We are Matrix: the energy that drives you!** Matrix is an integrated platform offering complete energy-saving solutions. Whether for businesses or homes, we deliver energy cost reduction without investment or changes to our subscribers’ and consumers’ routines. We enhance savings, sustainability, and efficiency for consumers across Brazil. #### **Our Purpose** An inexhaustible source of energy generating increasing value for society. #### **Our Mission** To provide sustainable solutions to more and more people and businesses through innovation, excellence, and value creation, building and maintaining healthy relationships with our entire ecosystem. #### **Vision** To be recognized for our boldness and disruptive capability, maintaining long-term relationships based on trust and excellence.