On-site | Florianópolis A robust backend is not invisible—it’s what makes everything work. Here, you’ll be responsible for building the infrastructure that supports scalable tax solutions, translating complex business rules into clean, secure, and high-performance code. **Key Responsibilities:** Develop and maintain robust APIs, microservices, and backend systems focused on tax business rules; Work with manipulation and modeling of complex data in SQL/PostgreSQL; Integrate systems via events (RabbitMQ) and asynchronous architectures; Use AWS (EC2, S3, RDS, Lambda, SQS, SNS) for deployment and scalability; Ensure performance, security, and traceability of solutions (monitoring and logging); Participate in architectural decisions, version control (Git Flow), and environment automation with Docker/Linux; Translate fiscal and operational requirements into clear, reliable technical solutions. **Requirements and Qualifications:** Bachelor’s degree in Computer Science, Software Engineering, or related fields; 2–4 years of solid backend development experience; Python with focus on logic, data, and APIs; Proficiency in SQL/PostgreSQL (modeling and optimization); AWS (EC2, Lambda, S3, RDS, SQS, SNS); RabbitMQ and event-driven systems; Git/Git Flow, Docker, and Linux; Intermediate English for documentation and technical tools; Experience with AI—skills and knowledge; Analytical, detail-oriented, proactive profile, with clear technical communication and ability to collaborate with multidisciplinary teams. **Nice-to-Have:** Kubernetes, CI/CD, and deployment automation; REST/GraphQL APIs; Domain-Driven Design (DDD), clean code, design patterns; Automated testing and observability (logs, metrics, alerts); Experience with tax, fiscal, or financial systems; Knowledge of event-driven architecture and microservices; Experience with machine learning and applied data; Proficiency in Rust (for high-performance solutions); AWS certifications. **General Opportunity Details:** PJ (Individual Entrepreneur); **Contractual Value:** 6K to 8K; Performance bonus; On-site; Monday to Friday — 8-hour workday; Equipped kitchen; Fresh fruits and juices available daily; Birthday day off; Year-end break; We’re located in the Estreito neighborhood — Florianópolis. Why join Tributo Devido? We’re a technology company that transforms complexity into simplicity. We have a strong culture and leverage data and AI to build solutions that free businesses from tax bureaucracy—and we’re expanding into new frontiers. Here, we value those who deliver that extra 1%, who challenge what doesn’t work, and who understand that discipline is freedom. We’re a high-performance team united by love, honor, and purpose. Tributo is growing—and so do those who are part of it. OUR CULTURE TD’s Purpose: Challenge the complexity that binds businesses and individuals, delivering intelligent solutions that liberate time and potential for what truly matters. Our 5 Values: 101% | Divergent | Discipline | Results-Oriented | AHU