Senior Java Developer

CI&T

. Develop and enhance microservices using Java 17+ and the Spring Boot ecosystem .

Posted 10/22/2026full-timeBrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Proficient in developing and enhancing microservices using Java 17+ and Spring Boot, with a strong focus on API implementation, system integrations, and event-driven architectures. Experienced in AWS environments, containerization, and CI/CD practices, ensuring high performance and scalability of applications.

Highest-signal resume keywords

Java 17+ Backend DevelopmentSpring Boot FrameworkMicroservices ArchitectureAWS Application DevelopmentEvent-Driven Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Microservices DevelopmentREST API DevelopmentRelational DatabasesNoSQL DatabasesKafkaRabbitMQDockerKubernetesCI/CD PracticesQuery Optimization

Soft Skills

Strong Communication SkillsTechnical AutonomyCollaboration

Tools & Technologies

AWS ServicesGitLab CIOpenTelemetryPrometheusGrafana

Certifications & Qualifications

Java CertificationAWS Certification

Industry Keywords

Software Architecture PatternsDevelopment Best PracticesResilience PrinciplesDistributed SystemsDomain-Driven Design

Tech Stack

Tools & technologies

AWSDockerGrafanaGRPCJavaKafkaKubernetesMongoDBMySQLNoSQLOraclePostgresPrometheusRabbitMQSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop and enhance microservices using Java 17+ and the Spring Boot ecosystem
Implement and maintain APIs and system integrations, ensuring performance, security, and scalability
Develop event-driven solutions using Kafka or RabbitMQ
Work with relational and NoSQL databases, contributing to data modeling, query optimization, and performance
Develop and support applications in AWS environments, using containerization and continuous integration
Investigate and resolve technical issues, identifying opportunities to improve architecture and solution quality
Collaborate with engineering teams to evolve development standards, automation, and continuous delivery
Use internal development tools and platforms to support the application lifecycle

Requirements

What you’ll need

Strong experience in backend development with Java 17+ and Spring Boot
Experience with microservices architecture and REST API development
Experience with event-driven architectures and messaging using Kafka and/or RabbitMQ
Experience with relational and NoSQL databases such as PostgreSQL, MySQL, Oracle, or MongoDB
Experience developing and running applications on AWS
Knowledge of Docker, Kubernetes, and CI/CD practices
Knowledge of software architecture patterns, development best practices, and resilience principles for distributed systems
Experience analyzing and resolving issues in distributed applications
Technical autonomy, strong communication skills, and the ability to collaborate with multidisciplinary teams
Preferred qualifications: experience with Internal Developer Platforms (IDP), Developer Experience (DevEx), Backstage, AWS services (ECS, EKS, S3, RDS, Lambda, IAM), GitLab CI, OpenTelemetry, Prometheus, Grafana, gRPC, TDD, Domain-Driven Design, OAuth2, OIDC, JWT, and Java or AWS certifications

Benefits

Comp & perks

Health and dental insurance
Meal and food allowance
Childcare assistance
Extended parental leave
Partnerships with gyms and health and wellness professionals through Wellhub (Gympass) and TotalPass
Profit Sharing and Results (PLR)
Life insurance
Continuous learning platform (CI&T University)
Discount club
Free online platform dedicated to promoting physical health, mental health, and well-being
Pregnancy and responsible parenting course
Partnerships with online course platforms
Language-learning platform
Support and accommodations for people with disabilities
Dedicated Health and Well-being team
Inclusion specialists and affinity groups