Manaus, Brazil·Software Engineer

RamonMetzker

> _

Building intelligent systems at the intersection of web development, machine learning, and Industry 4.0.

TypeScriptReactNext.jsNode.jsPythonML/AIGraphQL
scroll
01.

About

I'm a developer based in Manaus, Brazil. I like building things that are both useful and well-crafted — from real-time dashboards and production tools to computer vision pipelines and web applications.

I currently work in the industry side of tech, which has given me a taste for systems that need to be reliable, fast, and meaningful to the people who use them every day.

Before that, I led and contributed to web projects at companies like Compass UOL, FITec, and Mobister, growing from front-end developer to tech lead. I'm drawn to the intersection of AI, modern web, and real-world engineering problems.

Lately I've been deep into the AI agent space — LangGraph, LangChain, open source models, fine-tuning, MCP servers, and prompt engineering. I find the challenge of making agents that actually work in production genuinely interesting.

Currently deepening my expertise through a postgraduate degree in Data Engineering & AI. When not coding, I'm exploring new models, experimenting with agentic workflows, or thinking about how technology can genuinely improve people's lives.

🇧🇷 Português · Native🇺🇸 English · Fluent
TypeScript95%
React / Next.js95%
Node.js88%
Python85%
AI Agents / LangGraph82%
GraphQL80%
Computer Vision72%
AWS72%

Tech I work with

TypeScriptReactNext.jsNode.jsPythonLangGraphLangChainAI AgentsPrompt EngineeringFine-tuningMCPOpen Source LLMsGraphQLREST APIsPostgreSQLDockerAWSComputer VisionData ScienceTailwind CSSIndustry 4.0
02.

Experience

SE

Samsung Electronics

current
Apr 2024 — Present

Development Analyst

·

Manaus, AM

  • Leading the company's agentic AI initiative — building AI-powered applications, intelligent automations, and driving AI adoption across departments through internal lectures and hands-on enablement.
  • Delivered a computer vision system that optimizes outbound finished goods throughput and accuracy — recognized with a company award for the impact on production operations.
  • Rebuilt a logistics abnormality monitoring system — including a river level prediction algorithm replaced with a deep learning model, significantly improving accuracy and driving measurable cost reduction across the supply chain.
  • Built a penalty simulation system forecasting financial impacts from government tax incentive programs.
  • Created multiple real-time dashboards improving visibility and response times across production and logistics.
  • Developed an internal communication tool streamlining material requests between production lines.
Mo

Mobister

Jun 2023 — Apr 2024

Lead Developer

·

Natal, RN

  • Led front-end development efforts, driving technical decisions and team workflows.
  • Mentored junior developers and established code quality standards.
FI

FITec

Feb 2023 — Jun 2023

Frontend Developer

·

Manaus, AM

  • Developed innovative web interfaces for technology solutions at Fundação para Inovações Tecnológicas.
CU

Compass UOL

Sep 2022 — Feb 2023

Front-end Developer

·

Remote

  • Built modern web applications and interfaces for one of Brazil's largest digital media groups.
BL

Blacklab Ventures

Jan 2022 — Sep 2022

Tech Lead

·

Remote

  • Tech Lead on squad PrimeLab — led architecture and development decisions for React-based products.
Mo

Mobister

Sep 2021 — Sep 2022

Front-end Developer · React

·

Natal, RN

  • Integrated WordPress as Headless CMS with Next.js frontends for news websites.
  • Built Google Web Stories with server-side rendering for infovital.com.br and euqueroinvestir.com.
  • Developed the full euqueroinvestir.com web presence from a predefined design system.
Co

Conatus SW

Aug 2021 — May 2022

Front-end Developer · React

·

Manaus, AM

  • Built React-based web applications for enterprise clients.
03.

Education

Academic Background

Wyden

Data Engineering and Artificial Intelligence

Postgraduate Degree

in progress

2026 — 2027

Deepening expertise in large-scale data pipelines, AI systems, and machine learning engineering.

UNOPAR

Software Engineering

Specialization

completed

2023 — 2024

Advanced software design principles, architecture patterns, and engineering best practices.

UniFavip Wyden

Systems Analysis and Development

Technology Degree

completed

2021 — 2023

Foundations of software development, algorithms, databases, and systems design.

Certifications

AWS Partner: Cloud Economics Accreditation

Amazon Web Services

Hands-On Application Development with React and Bootstrap

IBM / Coursera

HTTP: Entendendo a web por baixo dos panos

Alura

Object-Oriented Developer

User Experience

5+

Years coding

10+

Companies

Curiosity

04.

Contact

Got an interesting project or a problem worth solving? I'm always up for a good conversation. Whether it's something you're building, a collaboration idea, or just swapping notes on tech — feel free to reach out.

© 2026 Ramon Metzker. Built with Next.js & Tailwind.

hint: try the konami code

or: open the terminal