PL/SR Desenvolvimento Fullstack (Java e React)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a PL/SR Desenvolvimento Fullstack (Java e React) based in Brazil. This role offers the opportunity to design, build, and evolve robust, scalable, and highly available solutions impacting millions of users. You will work across backend and frontend technologies while contributing to the continuous evolution of a complex microservices ecosystem. The position combines hands-on development with a strong focus on architecture, code quality, observability, and technical sustainability. You will help maintain a healthy codebase by applying Clean Code, Clean Architecture, and modularization principles while addressing technical debt. The environment emphasizes high technical complexity, engineering excellence, automated testing, and reliable API-driven solutions. You will collaborate within agile teams, solve challenging technical problems, and contribute to solutions designed for scale and long-term maintainability. This is a strong opportunity for a mid-to-senior engineer who wants to make a direct impact on large-scale digital products.

Design, develop, maintain, and evolve robust, scalable, and highly available full stack solutions capable of supporting high-volume user environments. Develop backend services using Java, Spring Boot, Hibernate, and Node.js with NestJS, while contributing to the evolution of microservices architectures and REST APIs. Contribute to frontend development and integration initiatives, ensuring consistency between application interfaces, APIs, and backend services. Maintain code quality through Clean Code, Clean Architecture, modularization, and effective management of technical debt. Design, implement, and maintain automated tests, including unit tests with JUnit 5 and contract tests using Pact. Work with asynchronous communication and messaging technologies such as RabbitMQ and AWS SQS to support reliable distributed architectures. Monitor system health and contribute to observability initiatives using tools such as Dynatrace, identifying issues and supporting continuous improvements in reliability and performance. Participate in agile development practices using Scrum or Kanban, collaborating with other engineers and stakeholders to deliver high-value solutions. Contribute to code versioning and collaborative development practices using Git, while documenting solutions and supporting continuous technical improvement. Requirements Proven professional experience working on technically complex projects and processes, preferably in environments requiring scalability, availability, and strong engineering practices. Solid experience with Java 17+, Spring Boot, and Hibernate in production environments, combined with experience maintaining legacy Java applications from Java 8 onward. Professional experience with Node.js and NestJS, with the ability to contribute effectively to backend development across multiple technologies. Strong understanding of microservices architecture and REST API design, including the ability to build and evolve distributed services. Practical experience with messaging and asynchronous communication technologies such as RabbitMQ and/or AWS SQS. Experience with Axway API Gateway and familiarity with API management in enterprise environments. Hands-on experience creating and maintaining automated tests, particularly unit tests with JUnit 5 and contract tests with Pact. Experience with monitoring and observability platforms such as Dynatrace, together with a strong understanding of application health and operational reliability. Strong Git skills and practical knowledge of Clean Code, Clean Architecture, and modularization principles. Experience working with agile methodologies such as Scrum and Kanban, combined with strong problem-solving skills, attention to detail, curiosity, and a willingness to continuously learn. Experience with JavaScript and TypeScript is an advantage, as is practical experience developing frontend applications with React and React Native. Familiarity with Next.js, React Hooks, Styled Components, Axios, Microfrontend Architecture (MFE), and the development of reusable screens and components is considered a plus. Experience with low-code or no-code tools is also desirable. Benefits CLT employment with a 40-hour workweek and flexible working hours. Fully remote work arrangement. SulAmérica health and dental insurance, including coverage for dependents. Flexible Caju food and meal allowance. Life insurance. Home-office allowance through Caju. Wellhub (Gympass) and TotalPass. Sesc benefits extended to dependents, with access to services throughout Brazil. Corporate learning platform with access to more than 20,000 personal and professional development courses. Language Academy for professional language development. Internal talks and technical chapters focused on knowledge sharing, projects, practices, and peer development. Pet health insurance through Guapeco. Onhappy travel benefit for leisure trips. BYOD program with the option to receive a monthly payment for using your personal laptop, while company equipment is also available. Birthday cake benefit. Employee referral rewards through a networking and referral program.

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