Mid-Level Backend Developer, Java, Spring Boot

CI&T

. Develop, maintain, and enhance scalable backend systems using Java, Spring, and Spring Boot .

Posted 10/27/2026full-timeRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing scalable backend systems using Java, Spring, and Spring Boot, with a strong focus on microservices architecture and RESTful API design. Proficient in CI/CD practices, automated testing, and applying software engineering best practices in a B2B e-commerce environment.

Highest-signal resume keywords

Java ProgrammingSpring FrameworkMicroservices ArchitectureCI/CD PracticesAutomated Testing

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Hard Skills

JavaSpringSpring BootMicroservicesRESTful APIsSpring DataJPAKafkaRabbitMQJUnit

Soft Skills

Analytical SkillsProblem-SolvingCommunicationCollaborationProactive Mindset

Tools & Technologies

DockerKubernetesNew Relic

Industry Keywords

B2B E-CommerceAlcoholic Beverage IndustryData ModelingSoftware Design PatternsClean Code Principles

Tech Stack

Tools & technologies

DockerJavaJUnitKafkaKubernetesMicroservicesMockitoRabbitMQSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop, maintain, and enhance scalable backend systems using Java, Spring, and Spring Boot
Design, implement, and maintain microservices and RESTful APIs
Implement data access and persistence solutions using Spring Data and JPA with relational and non-relational databases
Develop and maintain asynchronous communication and event-driven integrations using Kafka and RabbitMQ
Write and maintain unit and integration tests using JUnit and Mockito
Apply security and performance best practices
Collaborate with cross-functional teams to define technical solutions and deliver software
Contribute to CI/CD processes using Docker and Kubernetes
Monitor application health, performance, and reliability using observability tools such as New Relic
Apply clean code, design patterns, and software engineering best practices
Build and improve scalable backend systems for a B2B e-commerce platform in the alcoholic beverage industry operating across 40 countries

Requirements

What you’ll need

Strong proficiency in Java and associated frameworks, particularly Spring and Spring Boot
Solid understanding of microservices architecture and RESTful API design principles
Familiarity with relational and non-relational databases, including data modeling and persistence concepts
Knowledge of messaging and asynchronous communication systems, such as Kafka and RabbitMQ
Hands-on experience with automated testing frameworks, including JUnit and Mockito
Proficiency in CI/CD practices and familiarity with Docker and Kubernetes
Strong understanding of object-oriented programming, data structures, algorithms fundamentals, and problem-solving techniques
Knowledge of software design patterns, clean code principles, and software development best practices
Understanding of regression, smoke, stress, unit, integration, automated, and end-to-end testing methodologies
Strong analytical and problem-solving skills
Excellent communication and collaboration skills for cross-functional and international teams
Proactive mindset, ownership, and continuous improvement approach
Upper-intermediate to advanced English proficiency

Benefits

Comp & perks

Health and dental insurance
Meal and food allowance
Childcare assistance
Extended paternity leave
Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass
Profit Sharing and Results Participation (PLR)
Life insurance
Continuous learning platform (CI&T University)
Discount club
Free online platform dedicated to physical, mental, and overall well-being
Pregnancy and responsible parenting course
Partnerships with online learning platforms
Language learning platform
Inclusion support and accommodations during the selection process
Dedicated Health and Well-being team, inclusion specialists, and affinity groups