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

12 hours, 14 minutes ago
Brazil
Full-time
Senior
AI Engineer
Software Development
Azure CI/CD COBOL Java Microservices .NET Python React
Apply Now
CI&T

CI&T

CI&T is a global digital technology agency empowering agile growth for leading companies through advanced technologies with a team of 2000 experts worldwide.

Internet Software & Services
5001+
Founded 1995
View All Jobs 40

Description

  • Own the end-to-end solution, from architecture through tested production deployment, using an agentic SDLC approach.
  • Architect and build agentic LLM solutions, including API integrations, RAG, tool orchestration, runtime frameworks, prompts, and guardrails.
  • Build and manage context-data pipelines and vector databases for reliable agent inputs.
  • Develop Python backend services and APIs and a React user-facing application.
  • Build, customize, and share agents, skills, subagents, commands, and development harnesses.
  • Validate solutions through evaluations, automated testing, and AI red teaming for hallucinations, prompt injection, and data leaks.
  • Review AI-generated code and outputs against technical, quality, and business requirements.
  • Optimize context, RAG strategy, and agent calls to balance solution quality and inference cost.
  • Instrument application and agent observability to monitor behavior, quality, and cost.
  • Lead technical design, conduct code reviews, mentor engineers, and coordinate with AI Deployment Engineers and AI Orchestrators for production readiness.

Requirements

  • Senior-level experience delivering AI-powered applications to production.
  • Strong Python backend experience, including APIs, services, and data processing.
  • Strong React frontend development experience.
  • Hands-on experience building LLM applications with prompt and context engineering, RAG, tool orchestration, and multi-agent designs.
  • Experience with vector databases and context-data pipelines.
  • Experience with AI evaluations, probabilistic testing, and red-teaming practices.
  • Experience using AI coding agents and building custom agents, skills, or commands.
  • Strong software architecture fundamentals, including microservices, event-driven systems, CI/CD, TDD, and observability.
  • Experience with code or document analysis, parsing, or text-extraction use cases.
  • Ability to serve as a technical reference through code reviews and mentorship.
  • Fluent written and spoken English at B2+ level.
  • Experience modernizing legacy codebases, advanced RAG or knowledge graphs, LLM observability tooling, Azure, model fine-tuning, or financial services/mortgage domains (preferred).

Benefits

  • Health, dental, and life insurance.
  • Meal and food allowance.
  • Childcare assistance and extended paternity leave.
  • Profit Sharing and Results Participation (PLR).
  • Gym, health, and wellness partnerships through Wellhub (Gympass) and TotalPass.
  • Continuous learning through CI&T University, online learning partnerships, and a language-learning platform.
  • Discount club and a free physical, mental, and overall well-being platform.
  • Pregnancy and responsible parenting course.

Interested in this position?

Apply directly on the company website

Apply Now

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