Gabriel Monteiro
Gabriel Monteiro

Lead AI Engineer

Open to offers · Member since 28 Oct 2026
Location
São Paulo, Brazil
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Lead

About

Professional summary

I am a Lead AI Engineer and technical leader with more than 14 years of experience across software engineering, data, machine learning, and enterprise applications.

I design and build multi-agent and retrieval-augmented generation systems for enterprise use cases, including contract review, legal research, document processing, and multi-tenant SaaS products.

My core expertise includes Google Cloud, Vertex AI, Gemini, Google ADK, agent orchestration, RAG architectures, vector search, prompt engineering, and LLM evaluation.

I have led engineering, cloud infrastructure, information security, and IT operations for AI products serving enterprise tenants in legal, trade, finance, banking, pharmaceutical, and automotive domains.

I bring strong backend and full-stack development experience with Python, FastAPI, Django, Node.js, React, Next.js, Angular, PostgreSQL, and API integrations.

I also have experience leading teams, mentoring engineers, establishing engineering practices, managing security compliance, and delivering fraud detection, online banking, and agentic AI solutions.

Skills

25 capabilities

Tech stack & tools

Working toolkit

Data Stores

Development

Languages & Frameworks

Experience

Career history

Lead AI Engineer Numera

Architect multi-agent and RAG systems for contract review and legal research using Vertex AI, Gemini, Google ADK, A2A, Vector Search, and Document AI OCR. Designed a database-per-client isolation model with dedicated credentials managed through Secret Manager.

Lead software development, IT operations, information security, and cloud infrastructure across AI products and consulting engagements serving approximately 35 enterprise tenants. Use Langfuse to trace agent invocations and diagnose workflow failures.

Own security and compliance efforts, achieving SOC 2 Type I in February 2026. Manage external penetration tests, remediation, SAML SSO integrations, and security due diligence, while mentoring engineers in AI architecture, prompt engineering, and agent orchestration.

Software Engineer Technical Lead IBM

Developed agentic AI applications using LangChain and IBM BeeAI, integrating IBM Granite, Llama, and GPT models. Built RAG applications with Milvus and backend services using Python and FastAPI.

Developed application interfaces using React and contributed technical leadership to AI application delivery.

Senior Software Application Developer IBM

Delivered online banking features for BMO and PNC Bank. Developed frontend applications with Angular and React and backend services with Node.js, Python, and FastAPI.

Built hybrid mobile applications using Expo and React Native. Mentored junior developers and conducted code reviews.

Risk and Modeling Coordinator PagSeguro PagBank

Led a team developing credit card fraud detection systems using machine learning and data analytics.

Managed departmental KPIs, standardized agile processes, and conducted recruitment.

Senior Data Analyst PagSeguro PagBank

Automated information delivery to streamline fraud prevention operations and applied machine learning to automate credit card transaction analysis.

Developed analytics in Python and R, plus R Shiny dashboards to communicate findings to stakeholders.

Software Engineer PagSeguro PagBank

Developed web applications using Angular and JavaScript.

Integrated analytics across web and mobile platforms.

Software Engineer MWG Digital

Developed and launched mobile applications using Ionic and Angular.

Implemented API integrations and responsive application designs.

Software Engineer CFCSYSTEM

Developed web applications using PHP and JavaScript and maintained databases.

Supported customer service teams by troubleshooting technical issues.

Education

Learning history

PUCRS - Pontifícia Universidade Católica do Rio Grande do Sul

MBA, Finance and Business

Universidade de São Paulo

Postgraduate Degree, Data Science

Universidade Estadual de Mato Grosso do Sul

Bachelor's Degree, Computer Science

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