[Job-26236] Sr Python Developer (AI Specialist), Brazil

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.
With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.

As CI&T grows, we seek a Senior Developer, AI Specialist to drive AI transformation in software engineering, designing, prototyping, and scaling agentic and GenAI solutions that improve developer experience, productivity, quality, and business outcomes.

Responsibilities:

AI Solution Design & Experimentation
Lead end-to-end ideation, rapid prototyping (PoCs), and validation of GenAI use cases in engineering workflows.
Define hypotheses, success metrics, and run experiments (A/B/offline evals) with rigorous, data-driven measurement.
Present findings and recommendations to senior leadership; iterate toward production-ready solutions.

Agent Engineering & Orchestration
Design and build AI agents and agent factories (multi-tool, multi-step, guardrailed) using Python/Node.js.
Implement orchestration with frameworks and protocols (e.g., LangChain/LangGraph, MCP—Model Context Protocol).
Integrate workflows with CI/CD pipelines; build reusable components and templates for scale.
Apply best practices in prompt engineering, tool use, memory, planning, and retrieval (RAG) with vector databases.

API & Microservices
Experience in designing and implementing RESTful APIs with Java/Kotlin, microservices architectures and distributed system.

LLMs & Platforms 
Work hands-on with multiple LLMs and providers (OpenAI/Azure OpenAI, Anthropic, Google, open-source like Llama/Mistral).

Collaboration & Client Engagement
Partner with Engineering, Platform, DevEx, Finance, and Operations to embed AI in delivery workflows.
Communicate clearly with technical and non-technical audiences; drive alignment and adoption.
Engage with clients as needed (occasional onsite presence) for discovery, workshops, demos, and rollout.

Documentation
Maintain concise documentation for architectures, prompts/agents, evaluation methods, and playbooks.

Requirements:
Solid experience in backend development.
Proven experience in designing and implementing RESTful APIs, microservices architectures, and distributed systems.
Hands-on experience with messaging technologies (e.g., RabbitMQ, Kafka, EventHub) and event-driven architectures.
Practical experience or strong interest in integrating AI solutions into development processes, including the use of prompt engineering and related GenAI techniques.
Familiarity with CI/CD pipelines, version control systems (e.g., Git), and agile methodologies.
Advanced level in English to effectively read technical documentation and communicate with international teams.
Strong problem-solving abilities, attention to detail, and a commitment to delivering high-quality, performant code.

If you like it, just apply and good luck!
#LI-JM2

Our benefits:

-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.