Job Summary: We are seeking a Java Backend Developer to work on innovative technological solutions, collaborating on modern architectures and advancing expertise in microservices, messaging, and infrastructure. Key Highlights: 1. Work in a collaborative, agile, and creative environment 2. Develop strategic solutions for a large financial institution 3. Advance expertise in microservices, messaging, and infrastructure **About MJV** Being an MJVer means being part of one of the best places to work. We believe evolution begins from within—thus, we foster a collaborative, welcoming, inclusive, and strongly belonging-oriented environment. Here, achievements and growth happen collectively, with autonomy, creativity, and innovation. We are MJV! **Job Description:** We are looking for a **Java Backend Developer** eager to grow and contribute to building innovative technological solutions, working in a **collaborative, agile, and creative** environment. If you have experience in **Java**, enjoy working with **modern architectures**, **AWS Cloud**, and wish to advance your skills in **microservices, messaging, and infrastructure**, this opportunity may be right for you. **About the Project:** You will join a strategic initiative for a large financial institution recognized nationally and internationally. This is a high-visibility, high-impact product focused on internal and external user operations and experience, requiring the quality, security, scalability, and robustness typical of the banking sector. **About the Team:** This team is responsible for developing and maintaining corporate applications supporting financial products, digital services, and essential operations, ensuring system integration and high availability. **Responsibilities and Duties:** * Develop and maintain Java backend solutions using microservice architecture. * Work with recent versions of Java, applying best practices and development standards. * Work with AWS Cloud, utilizing services such as Lambda, S3, SNS, SQS, and API Gateway. * Contribute to the design and evolution of application infrastructure in partnership with technology teams. * Implement and maintain integrations using messaging systems such as Kafka or RabbitMQ. * Collaborate with multidisciplinary teams to develop scalable, resilient, and high-performance solutions. * Participate in code reviews to ensure code quality, readability, and maintainability. * Create and maintain clear and concise technical documentation. * Work within agile teams, contributing to continuous process improvement. **Requirements and Qualifications, Tools, Skills, Courses, and Certifications:** * Experience with **Java (most recent versions)** and frameworks such as **Spring Boot and Quarkus**. * Knowledge of **AWS**, especially services: Lambda, S3, SNS, SQS, and API Gateway. * Experience or exposure to **microservice architecture**. * Knowledge of **messaging systems** (Kafka, RabbitMQ, or similar). * Experience with **Git** for source code versioning. * Knowledge of software development best practices, **Clean Code**, and **design patterns**. * Experience with relational and non-relational databases, such as SQL (PostgreSQL, MySQL) and **MongoDB**. * Continuous Integration and **CI/CD** pipelines. * Experience in **infrastructure, cloud, and application architecture**, with a solution-oriented mindset. **MJV Benefits:** TotalPass\Wellhub; ‍‍‍‍ Group life insurance; Meal/Voucher allowance; Health and dental plan — Bradesco; Training initiatives: lectures, forums, knowledge-sharing sessions, and conversations related to our business. We stay constantly connected to learn more—together; +MJVer Program: our internal referral program where you refer a colleague to join us, and if the match is successful, you receive a reward. Partnerships: want discounts? We have a Workplace group where we announce partnerships with educational institutions, language schools, gyms, restaurants, products, and other services;