Job Summary: We are looking for a Senior Backend Developer to work with microservices, applying best practices, analysis, and technical documentation to drive business growth. Key Highlights: 1. Develop integrations focused on microservices 2. Perform continuous system maintenance 3. Analyze business and technical project requirements **Join South System and take off!** We are seeking a Senior Backend Developer to board our spaceship and, together, propel people and businesses through innovation. Location: Remote **Responsibilities** * Develop integrations focused on microservices; * Experience with Design Patterns; * Best Practices (Clean Code, DDD, etc.); * Source code analysis and refactoring; * Perform continuous system maintenance; * Analyze business and technical project requirements; * Prepare technical documentation; * Apply tests and use cases; * Validate and verify deliverables; * Support user acceptance testing (UAT) with business and assisted operations teams. **Mandatory Requirements** * Integrations (Sensedia) * PostgreSQL database * Experience in Microservices Development * Java 17 * Spring Boot and/or Quarkus * REST API development * Experience with AWS Serverless (Lambda, SQS, Kinesis, DynamoDB) * Experience with MongoDB * Experience working with Agile methodologies (Kanban or Scrum); * Ownership mindset, analytical, dynamic, communicative, and proactive profile. **Benefits that make a difference:** * Courses and certifications on **Udemy**, selected by the Business Partner team with curation and guidance. * **Remote work allowance** to make your daily routine more comfortable. * **Financial education** to support your economic well-being. * **Flash Card.** Interested in this opportunity? Now we want to continue showing you why joining South System is so special: * We are recognized by our team: we have been named **one of the best places to work in Brazil (GPTW)** twice, and hold a **4.9 rating** on **Glassdoor and Indeed**. * We were awarded at the **LinkedIn Talent Awards**. * We are committed to the future: we are **carbon neutral**, offsetting 100% of our carbon emissions. * We operate with **remote and hybrid work models**, depending on the role and project. Our way of being: * We value **continuous growth and development.** * We have a culture rooted in **respect, collaboration, and loyalty.** * We are **diverse, inclusive, and believe in the power of plurality across our teams.** * We deliver technology solutions with **innovation and real impact.**