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CI&T

Mid-Level Android Developer

CI&T

. Develop and enhance backend services using Java/Spring Boot .

Posted 9/28/2026full-timeBrazilMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and enhancing backend services using Java and Spring Boot, with a strong focus on AWS integration and microservices architecture. Proficient in database management with Oracle and MongoDB, and committed to writing clean, testable code following industry best practices.

Highest-signal resume keywords
Java (17+)Spring Boot (3+)AWS (SNS/SQS, S3, Lambda)Microservices ArchitectureOracle and MongoDB

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
JavaSpring BootAWSMicroservicesOracleMongoDBJUnitMockitoSOLID PrinciplesClean Code
Tools & Technologies
DockerKubernetesCI/CDRedisAzure DevOps
Industry Keywords
Event-Driven ArchitectureDistributed SystemsScalabilityPerformanceBenefits Industry

Tech Stack

Tools & technologies
AWSAzureDockerJavaJUnitKubernetesMockitoMongoDBNoSQLOracleRedisSpringSpring BootSpringBoot

About the role

Key responsibilities & impact
  • Develop and enhance backend services using Java/Spring Boot
  • Integrate applications with AWS services (SNS, SQS, Lambda, S3, Redis)
  • Design and access data in Oracle and MongoDB, with a focus on performance and scalability
  • Write clean, testable code aligned with SOLID, Clean Code, and Clean Architecture principles
  • Participate in technical decision-making
  • Support the team with code reviews and continuous service improvement
  • Work on a benefits-industry project, building and enhancing distributed, scalable, and resilient systems in a microservices-based environment

Requirements

What you’ll need
  • Located in Brazil
  • 3+ years of experience with Java (17+) and Spring Boot (3+)
  • Hands-on experience with AWS (SNS/SQS, S3, Lambda) in a production environment
  • Knowledge of event-driven architecture, including event modeling, contracts, topics/queues, DLQs, and idempotency
  • Hands-on experience with microservices, service-to-service communication, API versioning, and basic observability
  • Strong knowledge of relational databases (Oracle) and NoSQL databases (MongoDB)
  • Experience with automated testing (JUnit/Mockito)
  • Knowledge of unit and integration testing
  • Understanding and practical experience with SOLID, Clean Code, and layered architecture/Clean Architecture
  • Experience with Docker/Kubernetes, CI/CD, Redis/ElastiCache, artificial intelligence, Azure DevOps, and DDD is a desirable plus

Benefits

Comp & perks
  • Health and dental insurance
  • Food and meal vouchers
  • 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