[Job - 32181] Master Full Stack Developer (Python + React), Brazil

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

• Opportunity Overview
• We are looking for a Senior or Master Full Stack Developer who can take product requirements, design the technical solution, and build it.
• You will own features end to end on a cloud enterprise platform: backend services, APIs, integrations, and React interfaces that support complex business workflows. You will also support the live project — investigating issues, fixing bugs, and keeping the platform running.
• This role uses AI intensively in day-to-day work, with judgment: you decide when it helps, review the output, and remain accountable for the result.

• What you will do
• Work with product to understand requirements, then design and implement the solution
• Build backend services in Python and frontend applications in React
• Design and maintain REST APIs, data contracts, and integrations with external systems
• Build resilient systems (async processing, retries, fault tolerance)
• Contribute to the design system, reusable components, and Storybook
• Use PostgreSQL, Temporal, Docker, and AWS Bedrock
• Write tests, follow accessibility standards, and keep the UI maintainable
• Investigate and fix bugs in production and in development
• Add observability with OpenTelemetry and Grafana
• Work with Terraform and GitHub Actions for CI/CD
• Contribute to architecture decisions and help raise engineering standards
• Use AI tools heavily to speed up design, coding, and troubleshooting — always with review and sound engineering judgment

• Required Qualifications
• Advanced English
• Hands-on production experience with both backend and frontend technologies
• Python (production), REST APIs, Docker, API Gateway, PostgreSQL
• Event-driven / async processing, message queues, workflow orchestration (e.g. Temporal)
• GitHub Actions, observability (OpenTelemetry, Grafana, or similar)
• React, JavaScript or TypeScript, HTML/CSS, responsive UI, REST integration
• Storybook, frontend testing with Playwright, Git
• Knowledge of Terraform and design systems
• Ability to turn product requirements into a technical design and working software
• Distributed systems, resilience patterns, auth (OAuth, OIDC, SSO, RBAC)
• Production troubleshooting and bug fixing, accessibility, clear communication
• Comfortable using AI as a core part of the workflow, with the judgment to validate, correct, and own the output

• Nice to Have
• AI/LLM integrations, enterprise SaaS, Jest/Cypress, design systems at scale, cloud frontend deploys, mentoring.