Java Developer – Mid-Level/Senior

Deroyque IT

. Develop and maintain backend applications and Java microservices .

Posted 10/27/2026full-timeRemote • BrazilSenior💰 R$0 - R$9,500 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Proficient in developing and maintaining backend applications using Java and Spring Boot, with a strong focus on REST API development and microservices architecture. Demonstrates expertise in system integrations, code reviews, and best practices in software development.

Highest-signal resume keywords

Java 17 or 21 ExperienceSpring Boot DevelopmentREST API DevelopmentMicroservices Architecture KnowledgeDocker Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaSpring BootREST APIsJPA/HibernateSQL DatabasesOAuth 2.0JWTJUnitMockitoCI/CD

Soft Skills

Technical Discussion ParticipationCode Review Contribution

Tools & Technologies

DockerGitMaven

Industry Keywords

Microservices ArchitectureDevelopment Best PracticesCloud EnvironmentsContainerized Environments

Tech Stack

Tools & technologies

CloudDockerHibernateJavaJUnitMavenMockitoSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact

Develop and maintain backend applications and Java microservices
Create and enhance REST APIs using Spring Boot
Maintain and enhance system integrations
Participate in the team’s technical discussions and decisions
Conduct code reviews and contribute to development best practices
Investigate integration, performance, and production issues
Develop unit and integration tests
Work with applications running in cloud and containerized environments

Requirements

What you’ll need

Experience with Java, preferably versions 17 or 21
Experience with Spring Boot
Knowledge of Spring MVC and Spring Data JPA
Experience with JPA/Hibernate and SQL databases
Experience developing REST APIs
Knowledge of microservices architecture
Knowledge of authentication and authorization using OAuth 2.0, JWT, or similar technologies
Experience with Docker
Knowledge of JUnit and Mockito
Experience with Git and Maven
Knowledge of CI/CD
Knowledge of SOLID, Clean Code, and development best practices
Willingness to work as an independent contractor (PJ)
English proficiency