[Job - 32269] AI Engineer (Senior), Brazil

• Senior-level AI Engineer with a solid track record delivering AI-powered applications to production
• Strong backend experience in Python (APIs, services, data processing)
• Strong frontend experience in React
• Hands-on experience building LLM applications: prompt and context engineering, RAG, tool orchestration, and multi-agent designs
• Experience with vector databases and context data pipelines
• Experience evaluating probabilistic behavior with evals and tests, and awareness of AI red teaming practices
• Experience using AI coding agents and building your own agents, skills, or commands to accelerate delivery
• Solid software architecture and engineering fundamentals: microservices, event-driven systems, CI/CD, TDD, and observability
• Experience with code or document analysis, parsing, or text extraction use cases
• Ability to act as a technical reference, reviewing code and mentoring other engineers
• Fluent English (B2+ or higher), written and spoken

• Experience analyzing or modernizing legacy codebases (for example COBOL, Java, .NET, or similar)
• Advanced RAG architectures and knowledge graphs
• Experience with LLM observability and evaluation tooling
• Experience with Azure
• Experience fine-tuning models
• Familiarity with the financial services or mortgage domain

-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!

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

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. See which data needs to be included in the report by clicking here.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.

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.

At CI&T, our rapid growth is fueled by the innovative solutions we create for our global clients. In this role, you will join a client engagement building an AI-powered tool that extracts business and technical requirements from legacy code and documentation, helping a large US financial services client modernize its systems faster and with less risk. You will work with the agentic SDLC as your way of working and AI as your main build lever.