Engenheiro de Software Fullstack Sr (Java/Flutter)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Engenheiro de Software Fullstack Sr (Java/Flutter) based in Brazil.

Join a senior engineering role where you will build, evolve, and improve software across backend and frontend environments.

You will work primarily with Java and Flutter, contributing to scalable, modern, and high-quality applications.

The role combines hands-on development with architectural decisions, technical collaboration, and continuous improvement.

You will work with cloud-native technologies, microservices, asynchronous integrations, and relational and NoSQL databases.

Quality is a core focus, with automated testing, code reviews, documentation, and strong engineering practices embedded in the development lifecycle.

You will also help manage technical risks, influence technology choices, and support the growth of less experienced engineers.

This is an opportunity for a technically strong professional who values autonomy, collaboration, and building reliable solutions in a remote environment.

Accountabilities:

• Develop, maintain, and enhance software functionality, identifying opportunities for refactoring, optimization, and continuous improvement.
• Build and evolve backend services using Java, Spring Boot, Quarkus, MicroProfile, and microservices-based architectures.
• Develop modern and interactive frontend and mobile experiences using Flutter.
• Design and maintain integrations between services, including asynchronous communication through RabbitMQ and/or AWS SQS.
• Work with cloud environments and support the creation and management of development and production environments using AWS and EKS.
• Apply sound software architecture practices, including DDD, Microservices, MVC, and Clean Architecture.
• Design and optimize solutions using relational and non-relational databases, including PostgreSQL and MongoDB, as well as caching technologies such as Redis.
• Ensure code quality through automated unit, integration, and mutation testing, including JUnit and, where applicable, Pitest.
• Participate actively in code reviews and contribute to technical standards, engineering practices, and architectural decisions.
• Produce and maintain technical documentation using Markdown, Swagger/OpenAPI, C4 Model, UML, and other appropriate documentation standards.
• Use Git, GitFlow, GitLab, and Azure DevOps to manage source code, tasks, collaboration, and development workflows.
• Assess technical complexity, estimate risks, and develop mitigation strategies for complex initiatives.
• Participate actively in communication channels, technical discussions, planning, and alignment meetings.
• Collaborate with team members, share knowledge, and support colleagues in solving technical challenges.
• Contribute to onboarding and the technical development of less experienced professionals.
• Proactively evaluate and recommend tools, technologies, and engineering practices that can improve the development lifecycle.

Requirements:

• Solid professional experience with Java 8+, Java EE, Spring Boot, Quarkus, and MicroProfile.
• Strong experience with Flutter for developing modern frontend and mobile applications.
• Experience with microservices, DDD, MVC, Clean Architecture, and other software architecture best practices.
• Hands-on experience with EKS and AWS environments for development and production workloads.
• Experience implementing asynchronous integrations using RabbitMQ and/or AWS SQS.
• Strong knowledge of relational and NoSQL databases, particularly PostgreSQL and MongoDB.
• Experience with Redis for caching and in-memory data management.
• Practical experience developing automated unit tests with JUnit and applying software quality practices.
• Proficiency with Git and GitFlow, with experience using collaborative development and version-control workflows.
• Experience creating technical documentation using Markdown, Swagger/OpenAPI, C4 Model, and UML.
• Ability to participate effectively in code reviews, technical discussions, architecture decisions, and collaborative problem-solving.
• Strong analytical skills and the ability to estimate complexity, identify technical risks, and propose effective mitigation strategies.
• Good communication, collaboration, autonomy, and willingness to support the technical development of other team members.
• Experience with GitLab pipelines and continuous integration practices is an advantage.
• Experience with Flutter Desktop, Electron JS, JavaScript, and TypeScript is a plus.
• Knowledge of mutation testing with Pitest, DynamoDB, Linux administration, and additional AWS services is desirable.

Benefits:

• Vale Alimentação/Vale Refeição of R$45.00 per working day.
• Unimed health insurance with co-participation and no monthly premium.
• OdontoPrev dental insurance for a fixed monthly fee of R$21.91.
• Psychology Viva partnership with 3 free therapy sessions per month.
• Online learning opportunities ranging from gastronomy courses to postgraduate programs through Qualifica.
• Access to courses offered through the Escola de Pessoas.
• R$60.00 monthly Home Office allowance.
• Birthday month day off.
• TotalPass membership.
• Childcare allowance for mothers and fathers with children up to 3 years and 11 months.
• Discounts on undergraduate and postgraduate programs through the Ânima education ecosystem.
• Partnerships with OnHappy and SESC.
• Pet health plan through Guapeco.
• Remote work opportunity within Brazil.