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Ernst & Young

Global professional services: consulting, assurance, tax

Engenheiro de IA – Senior

AI Application EngineeringUpdated on Nov 14
Full-timeSão Paulo, State of São Paulo, BrazilNo salary listed

About the Job

Requirements

  • A degree in Computer Science, Information Technology, or a related field.
  • Experience developing and integrating AI solutions using Retrieval-Augmented Generation and large language models.
  • Experience with AI agents and frameworks such as LangChain, LangGraph, PydanticAI, CrewAI, HuggingFace, and Ollama.
  • Experience with agile methodologies, including Scrum.
  • Advanced knowledge of Retrieval-Augmented Generation.
  • Knowledge of the Model Context Protocol and emerging interoperability standards.
  • Knowledge of natural language processing, prompt engineering, AI architecture, and data manipulation.
  • General knowledge of machine learning and deep learning.
  • Software development experience with APIs, Docker, Git, testing, and SQL and NoSQL databases.
  • Experience with multi-agent architectures and advanced patterns such as Reflexion and Plan-and-Execute.
  • Experience with fine-tuning methods such as LoRA and QLoRA and knowing when to apply them.
  • Experience with cloud platforms, especially Azure AI Foundry.
  • Experience with REST APIs, JSON, SQL and NoSQL databases, and data manipulation using Python.
  • Technical English proficiency.
  • Experience with monitoring using OpenTelemetry and curating large language models and agents using tools such as MLflow and LangSmith.
  • Knowledge of guardrails, red teaming, and AI gateways.
  • DevOps practices using Docker, containers, and Git version control.
  • Residence in Brazil.

Responsibilities

  • Develop and implement solutions using large language models and generative AI.
  • Design Retrieval-Augmented Generation-based architectures, create autonomous agents, and apply advanced prompt and context engineering techniques.
  • Structure observability, monitoring, governance, and quality pipelines.
  • Work consultatively with clients and prepare technical reports and presentations.

Desired Qualifications

  • Postgraduate studies in technology or management.

About the Company

Ernst & Young

Global professional services: consulting, assurance, tax

EY (Ernst & Young) provides professional services at a global scale, offering consulting, assurance, tax, and transaction advisory services. It serves clients across industries such as technology, media, real estate, hospitality, and construction. Instead of selling a single product, EY works with clients through tailored engagements where cross-disciplinary teams analyze challenges, design strategies, perform audits, help with tax planning, and assist with mergers or divestitures. What sets EY apart is its worldwide reach and integrated service model, industry-specific expertise, and focus on responsible business practices like sustainability, cybersecurity, and workforce flexibility. EY’s goal is to help organizations improve performance, manage risk, and achieve sustainable growth while building a better working world.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Boston, MA
Founded
1991

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