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CI&T

Senior Java/Python Developer

CI&T

. Develop APIs, events, and integrations for the modernization program’s cross-functional components using Node.js and/or .NET .

Posted 9/25/2026full-timeBrazilSeniorWebsite

Tech Stack

Tools & technologies
ApacheAzureCloudJavaScriptKafkaNode.jsSDLC.NET

About the role

Key responsibilities & impact
  • Develop APIs, events, and integrations for the modernization program’s cross-functional components using Node.js and/or .NET
  • Apply DDD, microservices, and event-driven architecture patterns with Apache Kafka
  • Serve as the primary executor of the Agentic SDLC, applying SDD to guide AI agents
  • Ensure engineering governance and the quality of AI-generated code through code reviews and guardrails
  • Explore, structure, and advance the use of Claude Code, Skills, and MCPs within the project
  • Implement and maintain unit and integration tests
  • Contribute to quality pipeline automation
  • Collaborate with the Solutions Architect on technical decisions and user story refinement
  • Support the technical analysis of legacy systems with the assistance of AI to identify critical business rules

Requirements

What you’ll need
  • Strong backend development experience with .NET, including RESTful API design and asynchronous event-based communication
  • Hands-on experience with Apache Kafka or equivalent messaging and event-streaming systems
  • Experience with microservices architecture and Domain-Driven Design (DDD)
  • Experience with cloud platforms, preferably Azure, CI/CD pipelines, containers, and observability practices
  • Hands-on experience applying AI to software engineering, including SDD, context engineering, prompt orchestration, and agent-based development
  • Proficiency with Claude Code, MCPs, and AI-assisted development tools
  • Preferred: frontend development experience in microfrontend and module federation environments
  • Preferred: knowledge of API gateways, unified authentication, and multi-product platform design
  • Preferred: familiarity with AI context architectures, RAG, local knowledge bases, and specification files such as agents.md
  • Preferred: experience in legacy platform modernization programs spanning multiple domains
  • Preferred: knowledge of the logistics, transportation, or supply chain industry

Benefits

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