11/09/2026 updated
AS
100 % available
Senior AI Engineer & Technical Lead
Campina Grande, Brazil
Only remote
BSc Information Systems (06/2027); MBA Project Management, FGV; BA Business AdminAbout me
Senior AI engineer at IMOBI Holdings. I build governed LLM systems end to end: LangGraph agents, MCP tool servers, RAG, golden-set evaluation and audit trails, in Python/FastAPI. 15+ years leading delivery. Remote from Brazil on CET hours, invoicing via our US or Portuguese entity.
AI AgentsRAGLLMPython (Programming Language)PostgreSQLNeo4jPrometheusTypeScriptLarge Language ModelsMulti-Agent SystemsPrompt EngineeringSpring BootGenerative AIBackendFastAPI
AI / LLM Engineering
Expertise in local inference with Ollama and llama.cpp, integration of Anthropic and OpenRouter APIs, LangGraph agents, MCP tool servers, golden-set evaluation, Langfuse tracing, cost ceilings and fallback rules, as well as human-in-the-loop design for governed LLM systems.
Backend Development
Proficiency in Python with FastAPI, SQLAlchemy, Alembic, Celery and Pydantic, as well as Java 17 with Spring Boot and JPA, NestJS, PostgreSQL, Redis, Neo4j and Trino for building robust and scalable backend systems.
Formal Verification & Audit
Application of answer-set programming with Clingo and SMT solving with Z3 for deterministic output verification, combined with versioned rules and event-sourced audit trails to ensure traceable and compliant AI decision pipelines.
Frontend Development
Development of modern web interfaces using React, TypeScript, Next.js, Angular, PWA and web push technologies.
DevOps & Operations
Management of containerized environments with Docker and Compose, administration of Linux servers, monitoring with Prometheus and automation via GitHub CI.
Project Management & Delivery
Certified Scrum Master with experience in PMO governance, risk and quality indicators, stakeholder reporting and leading complex multi-team software delivery projects.
Automated Testing
Design and implementation of large automated test suites, including 300+ tests for AI delivery platforms, 560+ tests for opportunity hub systems and 230+ tests for customer-service agents.
Graph & Federated Data
Use of Neo4j for graph data management and Trino for federated SQL queries across distributed project databases, enabling natural-language-to-SQL workflows via LangGraph agents.
Expertise in local inference with Ollama and llama.cpp, integration of Anthropic and OpenRouter APIs, LangGraph agents, MCP tool servers, golden-set evaluation, Langfuse tracing, cost ceilings and fallback rules, as well as human-in-the-loop design for governed LLM systems.
Backend Development
Proficiency in Python with FastAPI, SQLAlchemy, Alembic, Celery and Pydantic, as well as Java 17 with Spring Boot and JPA, NestJS, PostgreSQL, Redis, Neo4j and Trino for building robust and scalable backend systems.
Formal Verification & Audit
Application of answer-set programming with Clingo and SMT solving with Z3 for deterministic output verification, combined with versioned rules and event-sourced audit trails to ensure traceable and compliant AI decision pipelines.
Frontend Development
Development of modern web interfaces using React, TypeScript, Next.js, Angular, PWA and web push technologies.
DevOps & Operations
Management of containerized environments with Docker and Compose, administration of Linux servers, monitoring with Prometheus and automation via GitHub CI.
Project Management & Delivery
Certified Scrum Master with experience in PMO governance, risk and quality indicators, stakeholder reporting and leading complex multi-team software delivery projects.
Automated Testing
Design and implementation of large automated test suites, including 300+ tests for AI delivery platforms, 560+ tests for opportunity hub systems and 230+ tests for customer-service agents.
Graph & Federated Data
Use of Neo4j for graph data management and Trino for federated SQL queries across distributed project databases, enabling natural-language-to-SQL workflows via LangGraph agents.
Experience
Professional experience10+ years
Freelancer since2019
Languages
EnglishFluentPortugueseNative speakerSpanishBasic knowledge
Project history
Project quality and governance: indicators, deviations, corrective actions and reporting to senior management; supports the development team on internal PMO software.
Conversation flow in LangGraph; decision model with rule-based fallback; per-client knowledge base; responses written by a separate model. Decisions evaluated against a golden reference set; 230+ automated tests.
Python, PostgreSQL, Docker Compose, React/TypeScript; tools exposed to AI agents over MCP; monthly LLM cost ceiling; 560+ automated tests. 211 commits.