Stefanini Brasil
Stefanini Brasil
Stefanini Brasil provides digital transformation and technology consulting services for organizations across healthcare, logistics, retail, and industrial goods. Its work spans artificial intelligence, cybersecurity, cloud enablement, and operational consulting, helping teams modernize processes, strengthen technology capabilities, and improve customer experiences. The company brings decades of experience delivering technology-led solutions for complex business needs.

Prompt Engineer / AI Agent Developer (Remote)

Develop AI agents for Stefanini’s technology solutions by configuring workflows, evaluating LLMs, and applying security and governance practices.

Description

  • Set up system prompts, instructions, and agent dialogue flows within the client’s platform
  • Evaluate and select the best model for each agent based on quality, cost, and response speed
  • Tailor instructions to the behavior and capabilities of each LLM
  • Establish response-quality standards and perform iterative testing with structured cases
  • Implement guardrails, manage out-of-scope replies, and mitigate prompt-injection risks
  • Record prompt-engineering standards, version histories, and reusable practices to support the team

Requirements

  • Demonstrated prompt-engineering experience on production projects involving multiple LLM families, including OpenAI/GPT, Anthropic/Claude, Google/Gemini, and Meta/Llama
  • Practical experience building AI agents within squads, including orchestration, tool integration, and context or memory management
  • Experience defining metrics and testing the quality of AI-generated responses
  • Outstanding written Portuguese with clear, precise, grammatically accurate, and appropriately toned communication
  • Working knowledge of Git and deployment through established CI/CD pipelines
  • Ability to learn and use new proprietary platforms quickly
  • Experience with RAG architectures, especially assessing responses against documentary sources
  • Python knowledge for test automation and LLM evaluation
  • Experience handling sensitive data in projects subject to Brazil’s LGPD or in healthcare environments

Benefits

  • Meal or food allowance
  • Discounts on courses, universities, and language schools
  • Access to Stefanini Academy, with free current online courses and certificates
  • Mentoring support
  • Benefits club discounts on consultations and medical examinations
  • Health insurance
  • Dental insurance
  • Additional discounts at leading establishments through the benefits club
  • Travel club membership
  • Pet benefits program

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