[Hiring] Senior Backend Developer @CI&T

Role Description

We’re looking for a Senior Java Backend Developer to join a CI&T squad working on a financial services client. You’ll help modernise an established Java web platform. That means building new services and APIs, keeping the existing platform stable, and gradually moving legacy functionality onto a cleaner architecture. You’ll work closely with frontend developers, QA, a Product Owner and a Tech Lead, using agile practices.

• Design, build and maintain backend services and RESTful APIs in Java
• Write clean, testable code with good unit and integration test coverage using JUnit
• Model data and write efficient SQL against Oracle DB, and tune queries, indexes and transactions
• Understand, maintain and refactor legacy modules, including XSLT-rendered pages, and help plan their migration
• Join refinement sessions: break features down into technical tasks, estimate them and raise risks early
• Review pull requests and help keep coding standards and technical documentation in good shape
• Work with DevOps and QA on build pipelines, deployments and production support
• Help investigate and fix incidents across environments

Qualifications

• Around 5 years of professional experience in backend development with Java (Java 11+, ideally 17/21)
• Solid automated testing skills with JUnit, plus mocking frameworks such as Mockito
• Hands-on experience with Maven: multi-module projects, dependency management and build lifecycle
• Experience building Java web applications: REST APIs, JSON/XML handling, HTTP and request/response lifecycle
• Good knowledge of a Java application framework (Spring Boot, Jakarta EE or similar) and persistence with JPA/Hibernate
• A solid grasp of object-oriented design, SOLID principles and common design patterns
• Experience with Git, branching strategies and pull request workflows
• Familiarity with CI/CD pipelines (e.g. Jenkins, GitHub Actions, GitLab CI or Azure DevOps)
• Experience working in agile teams (Scrum or Kanban)
• Good English communication skills for working with international stakeholders

Requirements

• Quarkus, or other cloud-native Java frameworks
• Apache Kafka: producers, consumers, topics and event-driven design
• AWS S3, and AWS services in general
• Maintaining or migrating legacy pages built with XSLT (and XML/XPath)
• Database migration tools such as Flyway or Liquibase
• API documentation with OpenAPI/Swagger
• Containerisation with Docker; exposure to Kubernetes or OpenShift
• Application security basics: OAuth2/OIDC, JWT, and OWASP Top 10 awareness
• Observability: structured logging, metrics and tracing (e.g. ELK, Grafana, OpenTelemetry)
• Code quality tools such as SonarQube
• Experience in banking or other regulated environments

Benefits

• 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
• And many more!