Midlevel Back-End Developer (Node.js),Brazil

Get AI-powered advice on this job and more exclusive features. We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 7.400 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality. We are seeking a highly skilled Backend Developer to join our engineering team for a digital transformation project. You will play a key role in developing and implementing robust, scalable backend services for a modern portal. As a Backend Developer, you will be responsible for building services, APIs, and integrations that support seven critical insurance lines while ensuring high performance, security, and compliance with industry regulations. Responsibilities Develop and maintain scalable backend services using Node.js and Express.js framework Design and implement RESTful APIs and GraphQL endpoints for frontend and external integrations Build services architecture following best practices for distributed systems Develop secure authentication and authorization systems using OAuth 2.0 and JWT Create integration APIs for Microsoft Entra ID SSO and external partner systems Implement business logic for workflows, claims processing, and policy management Write comprehensive unit tests and integration tests ensuring 90% code coverage Follow security best practices including data encryption, PII masking, and audit logging Collaborate with frontend developers to design efficient API contracts and data models Participate in code reviews and maintain high code quality standards Requirements Experience with Express.js, Fastify, or similar Node.js frameworks Proficient in RESTful API design and development with proper HTTP status codes and error handling Experience with PostgreSQL including complex queries Knowledge of authentication protocols (OAuth 2.0, JWT, SAML) and security best practices Proficient with Git version control and collaborative development workflows Experience with automated testing frameworks (Jest, Mocha, or similar) Understanding of microservices architecture and distributed systems concepts Knowledge of CI/CD pipelines and deployment automation Strong problem-solving skills and attention to detail Communication and teamwork skills Nice to Have Familiarity with GraphQL and Apollo Server Experience with serverless architecture (AWS Lambda, Serverless Framework) Knowledge of monitoring and observability tools (Prometheus, Grafana, ELK Stack) Experience with Infrastructure as Code (Terraform, CloudFormation) Understanding of Kubernetes and container orchestration Experience with legacy system integration and data migration Knowledge of Agile methodologies and project management tools Experience with multi-tenant application architecture Familiarity with Power Platform (Power Apps, Power Automate) for migration projects Benefits Health and dental insurance Meal and food allowance 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! More details about our benefits here: https://ciandt.com/br/pt-br/carreiras Inclusion and accommodations At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don’t worry: we can support you in obtaining it. We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side. Seniority level Not Applicable Employment type Full-time Job function Engineering and Information Technology Industries Referrals increase your chances of interviewing at CI&T by 2x Title Consultant - Desenvolvedor Java Backend Pleno - Home Office We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. J-18808-Ljbffr

Location: São Paulo, São Paulo, BR

Posted Date: 9/19/2025