Location
Remote (Brazil)
Seniority
Middle
Confirmed on the employer's own hiring board on Oct 26, 2026. First seen by Alion on Oct 22, 2026. CI&T scores A on the Alion truth index.
Overview
Company
Impact
Profile match
CI&T is a Brazilian digital services company founded in Campinas in 1995 that builds software, data platforms and artificial intelligence systems for large enterprises. It works mainly with banks, retailers, consumer goods companies and healthcare providers in Brazil, the United States and Europe, taking on product engineering, cloud modernisation and experience design as long-running delivery engagements. The company listed on the New York Stock Exchange in 2021 and employs several thousand people across delivery centres in Latin America, North America, Europe and Asia.
Backed by MMC
A CI&T busca uma pessoa Engenheira de IA Python Pleno para integrar o time de desenvolvimento do agente de atendimento de IA, com foco em jornadas B2C e B2B. Seu papel será integrar modelos de IA com o mundo real, implementando ferramentas (Tools) via APIs, mantendo fluxos conversacionais e evoluindo pipelines de RAG para garantir um atendimento eficiente e de qualidade.
Responsabilidades:
- Desenvolver e manter APIs e Webhooks padronizados que servirão como as "mãos" do agente de IA (Tools), garantindo segurança e tratamento de erros rigoroso.
- Apoiar o desenho e a manutenção de máquinas de estado/grafos de conversação, ajudando a controlar o contexto das interações para que a IA não se perca em conversas longas.
- Monitorar e ajustar a recuperação de contexto da base de conhecimento, refinando os dados entregues ao LLM para melhorar a acurácia das respostas.
- Atuar em conjunto com pessoas Engenheiras Seniores para discutir melhorias arquiteturais, analisar métricas de produção e implementar novas camadas de segurança e orquestração.
Requisitos para este desafio:
- Compreensão prática no uso de LLMs e técnicas de Prompt Engineering, incluindo mitigação de alucinações, gestão de janela de contexto e geração de saídas estruturadas (JSON/Pydantic).
- Experiência prática na construção e manutenção de pipelines de RAG (ingestão, chunking, geração de embeddings e buscas em bancos de dados vetoriais).
- Capacidade de conectar LLMs a sistemas externos de forma segura via Function Calling (Tools), com forte validação de dados de entrada e saída.
- Sólida experiência em desenvolvimento backend com Python, consumo e criação de APIs REST, webhooks e autenticação.
- Capacidade de debugar e analisar respostas do modelo, apoiando a criação de casos de teste para garantir que alterações de prompt ou base de dados não quebrem fluxos existentes.
- Vivência prática com frameworks de orquestração de IA como LangChain, LangGraph, LlamaIndex ou similares.
- Uso prático de ferramentas de tracing de LLMs para debugar chamadas e analisar latência (ex: Langfuse, LangSmith ou similares).
- Domínio de Git, Docker e bancos de dados relacionais/NoSQL.
- Conhecimento básico em filas e processamento assíncrono (Redis, SQS ou Celery).
[Opcional] Diferenciais:
- Familiaridade com metodologias automatizadas de EVALs (LLM-as-a-judge).
- Interesse e conhecimento em Model Context Protocol (MCP).
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