Romario Fonseca | AI Consultant, LLM Trainer & Automation Engineer
AI Training Consultant & LLM Trainer
Postgraduate in Industrial Automation
Control & Automation Engineer, CREA-SP
8+ years leading technical projects
Founder of Sternentech (startup)
Romario Fonseca
AI CONSULTANT · LLM TRAINER · AUTOMATION ENGINEER

AI CONSULTANT  •  LLM TRAINER  •  AUTOMATION ENGINEER

Turning AI into systems that actually work.

8+ years engineering  /  500+ LLM tasks evaluated  /  B.Eng. Mechatronics

I design and implement generative AI, agentic workflows, computer vision and automation that move from experimentation into real operations, with measurable business impact.

FOCUS AREAS
Generative AI & LLMs
AI Agents · MCP · RAG
Computer Vision
Industrial & Automation

Sorocaba · São Paulo · Brazil · remote worldwide

$100K+
Annual impact delivered
500+
LLM tasks evaluated
8+ yrs
Technical project experience
Best Project
CNH Industrial, Sorocaba Plant
THE JOURNEY · 12+ YEARS

From industrial automation to applied AI.

Before AI, there was engineering, 12+ years building systems where software meets the physical world.

My career started long before generative AI. For over 12 years I've worked where software meets the physical world, supervisory systems, PLC-based automation on Siemens and Rockwell platforms, and electronic and hydraulic test rigs communicating over industrial networks like CAN J1939. Those projects taught me something that still shapes how I build: software only creates value when it understands the system around it. Over time, signals became data, machines became connected systems, inspection became computer vision, and AI became the next layer of the stack.

I didn't move from engineering to AI. I brought AI into engineering.

THEN · INDUSTRIAL AUTOMATION INTELLIGENT AUTOMATION · NOW
01CONTROL

Industrial Automation

PLC programming, supervisory systems and industrial control.

SiemensRockwellSCADAIndustrial Networks
02CONNECT

Machines & Data

Linking controllers, sensors and test rigs to their machine data.

CANJ1939Electronic TestingHydraulic TestingData Acquisition
03SEE

Computer Vision

Giving automation the ability to interpret the physical world.

PythonOpenCVCNNsMachine VisionInspection
04REASON

Artificial Intelligence

Adding context, knowledge and intelligent decision support.

LLMsRAGAI AgentsMCPGenAI
05INTEGRATE

Intelligent Operations

Connecting AI back into real engineering and business workflows.

ManufacturingQualityEngineeringDecision Support

AI with an engineering mindset.

I approach an AI system the way I approach an industrial one: understand the process, define the interfaces, validate the behavior, measure the result, and make sure it works outside the demo.

FEATURED CASE STUDY CNH INDUSTRIAL · LATAM

From manual inspection to AI-powered quality control.

At CNH Industrial Latin America, I led AI adoption across manufacturing, quality and engineering, architecting and deploying an end-to-end inspection solution that combines CNN-based computer vision, agentic approval workflows and RAG over engineering documentation, integrated directly into the production line.

Romario Fonseca holding the Convenção Kaizen Sorocaba 2025 trophy at CNH Industrial
AWARD · SOROCABA 2025
Convenção Kaizen, Best Project, CNH Industrial Sorocaba Plant

Recognized for the AI-powered quality inspection system deployed on the production line.

INSPECTION PIPELINE
Camera captures part
Computer vision (CNN)
AI agent verifies & approves
RAG retrieves work instructions
Standardized decision → line
$100K+
Annual cost savings
0
Incorrect-part deliveries after go-live
Best Project
CNH Industrial Sorocaba Plant award
  • ·Eliminated incorrect-part deliveries and reduced quality escapes
  • ·Standardized inspection decisions and improved traceability
  • ·Reduced rework and warranty exposure across the line
  • ·Improved overall production workflow efficiency
AI MODEL TRAINING & EVALUATION

AI evaluation, grounded in real engineering.

I train and evaluate LLMs where technical correctness actually matters, pairing model assessment with hands-on engineering domain expertise.

Mercor

LLM TRAINER · AI CONSULTANT

Training and evaluating LLMs across engineering domains, electrical, mechanical and industrial automation, assessing technical correctness and real-world applicability.

Rubric design Prompt engineering Capability analysis Scenario exercises

Revelo

LLM TRAINER · SOFTWARE ENGINEERING
500+
approved tasks

Evaluated LLM-generated engineering solutions, bug fixes, features, refactors and tests, assessing production readiness, reproducibility and test-backed validation.

Docker / Compose Test validation Prod readiness
THE STACK

Capabilities, not a logo wall.

Generative AI

Agentic AI

AI & Computer Vision

Software & Data

Industrial & Edge

ANTHROPIC · TRAINED & CERTIFIED

Deep into the Claude ecosystem.

Claude Code video thumbnail
01 · BUILD
Claude API / Claude Code
Building with the Claude API · Claude Code 101 · Claude Code in Action
Anthropic certificate of completion, Introduction to Model Context Protocol
02 · AGENT
Agent Skills / MCP
Intro to Agent Skills · Intro to MCP · MCP: Advanced Topics
Anthropic certificate of completion, Claude with the Anthropic API
03 · INTEGRATE
Tools & workflows
Tool use, enterprise data and workflow integration
Anthropic certificate of completion, Claude with Amazon Bedrock
04 · DEPLOY
Vertex AI / Bedrock
Claude with Google Cloud Vertex AI · Claude in Amazon Bedrock
Anthropic certificate of completion, Introduction to Claude Cowork
05 · ADOPT
AI Fluency / Cowork
AI Fluency Framework & Foundations · Intro to Claude Cowork · Claude 101
SELECTED WORK

Systems built and shipped.

AI quality inspection system demo video 01 / vision · agents $100K+ impact

AI Quality Inspection System

Production computer-vision and agentic AI system for CNH Industrial, part verification, approval workflows and contextual retrieval integrated into the line.

Computer VisionCNNRAGAI AgentsManufacturing
FleetSight live tracking map with real-time GPS trajectory 02 / iot · saas LIVE

FleetSight

An end-to-end fleet telemetry SaaS I built, GPS tracking, monitoring dashboards, alerts, backend services and AI-assisted fleet insights.

IoTSaaSGPSAITelemetryPostgreSQL
AI + Robotics / ROS2 project video thumbnail 03 / r&d · watch

AI + Robotics / ROS2

R&D exploring autonomous systems, ROS2, computer vision, sensor fusion and AI-assisted perception for robotics applications.

ROS2Computer VisionRoboticsPerception
Industrial automation and AI project video 04 / OT × AI · watch

Industrial Automation & AI

Integrating PLC systems, manufacturing data, computer vision and Python applications, connecting operational technology with AI-assisted workflows.

PLCManufacturing DataComputer VisionPythonAutomation
PRODUCT SPOTLIGHT · BUILT END-TO-END FLEETSIGHT v2.4

FleetSight, fleet telemetry, live.

An end-to-end fleet monitoring SaaS I designed and built, live GPS tracking over MQTT, trajectory history with GPS replay, a fleet dashboard, restricted-zone geofencing and speed/stop alerts. Built for real operations on the plant floor.

app.fleetsight.io / live MQTT LIVE
FleetSight live map showing real-time forklift GPS trajectory and movement heatmap over a satellite plant view
FleetSight trajectory history panel with distance, active time, stops and speed events
Trajectory history, per-device GPS replay, stops and speed events.
FleetSight fleet dashboard with active vehicles, distance, utilization chart and live status
Fleet dashboard, utilization, live status and active alerts.
TELEMETRY · EG-05 · TODAY'S SESSION
11.1 km
Trajectory distance
1,764
GPS points logged
175
Stops detected
16.6 km/h
Max speed · alert on limit
  • ·Live map & MQTT telemetry
  • ·Trajectory history & GPS replay
  • ·Fleet dashboard & utilization
  • ·Restricted-zone geofencing
  • ·Speed & stop alerts
  • ·Operators & device registration
IoTSaaSMQTTGPSPostgreSQLTelemetry
CONSULTING

Where I can help.

/ 01

AI Use-Case Discovery

Identify where generative AI creates measurable business value, and where it doesn't.

/ 02

AI Agents & MCP

Design agentic systems that connect LLMs with tools, APIs, enterprise data and workflows.

/ 03

RAG & Knowledge Systems

Build context-aware AI over company knowledge and engineering documentation.

/ 04

AI Adoption & Training

Translate AI capabilities into practical workshops, exercises and team workflows.

/ 05

Computer Vision

Design inspection, detection and industrial vision applications that run in production.

/ 06

Industrial AI

Connect AI with manufacturing, automation, IoT and operational decision-making.

HOW I WORK

Owning the full implementation lifecycle.

01

Discover

Understand the workflow, constraints and business problem.

02

Design

Identify where AI actually adds value.

03

Build

Prototype the AI, agent, RAG, vision or automation workflow.

04

Validate

Measure model behavior, reliability and operational fit.

05

Deploy

Integrate with existing systems and workflows.

06

Improve

Monitor outcomes and continuously optimize.

ABOUT

AI + software + engineering + industrial operations.

I'm an AI Training Consultant and LLM Trainer with 8+ years leading technical projects and putting technology into real operational environments, not just experiments.

My differentiator is the combination: I understand business processes, engineering problems, AI systems and production environments, so AI solutions actually work reliably, interact with existing systems and generate measurable results.

LANGUAGES
Portuguese , Native
English , C2
BASED IN
Sorocaba, SP
Brazil, remote worldwide
EDUCATION
B.Eng. Control & Automation / Mechatronics
Universidade Paulista
Graduate Studies, Industrial Automation
Centro Universitário Facens
THOUGHT LEADERSHIP

Sharing what I learn.

Practical content on AI tools, AI engineering and real-world workflows, turning hands-on experience into things teams can use.

Vídeo no YouTube
Watch on YouTube
Vídeo no YouTube
Watch on YouTube
Vídeo no YouTube
Watch on YouTube

Have an AI problem worth solving?

Whether you're exploring an AI use case, building an agentic workflow, modernizing an industrial process, or looking for someone who bridges engineering and generative AI, let's talk.