C

CI&T

AI-driven digital solutions and nearshore development

AI Engineer Software Architect

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeRemote in BrazilNo salary listed

About the Job

Requirements

  • Deep practical experience with agentic development tools, particularly Claude Code.
  • Strong command of Spec-Driven Development (Spec-Kit and/or BMAD) and the ability to apply it to migration and modernization projects.
  • Solid full-stack experience with React/Next.js and Node, and with micro-frontend and BFF architecture.
  • Experience migrating or modernizing legacy systems, preferably Java web systems such as JSP/Struts or similar.
  • Experience using AI to understand legacy code, including reverse engineering, extracting business rules, and mapping dependencies.
  • Experience with agentic processes applied to development, such as AI code review, QA agents, and pipeline automation.
  • Systems-level perspective to understand architecture, dependencies, and impacts across teams and systems.
  • Experience in technical refinement with Product Owners and direct responsibility for a team's technical delivery.

Responsibilities

  • Own the technical delivery of the workstream, ensuring quality, predictability, and adherence to architectural standards using React with micro-frontends, NodeJS, EKS/AWS, and Cognito.
  • Conduct AI-assisted reverse engineering of the legacy system, extracting screen hierarchies, business rules, and consumed services from .do, .jsp, and .aspx code.
  • Turn the extracted knowledge into specifications and living documentation, using Spec-Driven Development (Spec-Kit, BMAD) as a foundation because the rules currently exist only in the Figma handoff.
  • Develop and accelerate screen migration, isolating legacy integrations in BFF adapters and reusing common components across products.
  • Implement agentic processes throughout the workstream, including AI code review, test generation and maintenance, assisted refactoring, and PR automation.
  • Support the AI Orchestrator and Product Owner with technical refinement and backlog organization, estimating flows (P/M/G/GG), flagging risks, and prioritizing automation opportunities.
  • Evaluate integration trade-offs across the frontend, BFF, and gateways (Flex Gateway/MuleSoft), considering dependencies with other Porto teams.
  • Mentor the workstream's engineers and raise the team's maturity in development with Claude Code and agentic tools.

Desired Qualifications

  • Experience with AWS, including EKS and Cognito, and with API gateways such as MuleSoft/Flex Gateway.
  • Experience with MCP (Model Context Protocol) and building custom agents for engineering workflows.

About the Company

CI&T

AI-driven digital solutions and nearshore development

CI&T provides digital solutions to help brands transform their businesses through technology. It focuses on digital strategy and software engineering, offering services such as AI-powered solutions, customer-centric design, and nearshore software development. Products and engagements work by delivering tailored digital initiatives through long-term partnerships, project-based work, and ongoing maintenance; its MRVP approach helps navigate compliance in regulated industries while still enabling innovation. CI&T differentiates itself through a global delivery model, a focus on diversity and inclusion, and an emphasis on combining strategy, engineering, and design to drive business transformation. The company targets a wide range of clients, including regulated sectors and quick-service restaurants, and aims to help clients maximize resources, scale rapidly, and thrive in a post-digital transformation landscape.

Company size
5,001-10,000
Company stage
IPO
Headquarters
São Paulo, Brazil
Founded
1995

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