Golang • Kafka • Docker
The simplest example is kafka + golang
This article presents a simple way to implement a microservice architecture using Kafka, Golang and Docker.
Product
Engineer
I design digital products end-to-end — translating strategy into experiences, pairing design thinking with engineering rigor, and ensuring every release is measurable and impactful.
Engineer
Projects
React • Node.js • PostgreSQL
E-commerce Platform
Modern e-commerce solution with real-time inventory, payment processing, and admin dashboard.
Vue • TypeScript • MongoDB
Task Management System
Collaborative task management with real-time updates, file sharing, and team communication features.
About
Hello! I'm Edgar Ferreira, a product engineer from Aracaju, Brazil, dedicated to crafting experiences that connect strategy, design, and technology.
With over 5+ years of experience, From early discovery to launch, I partner with founders and teams to define requirements, prototype flows, and lead implementation across APEX apps, APIs, and data models. I've shipped work for finance, logistics, and media companies, with a stronger focus on the Oracle ecosystem.
Curiosity keeps me multidisciplinary. Whether I'm mapping journeys with UX research, refining handoffs in Figma, or orchestrating delivery with CI/CD and observability, my goal is simple: deliver products that feel intentional and hold up in production — now with a focus on Oracle platforms.
Technologies & Tools
Oracle APEX (Apps, Reports, Forms)
Oracle Database (SQL/PLSQL)
Oracle Cloud Infrastructure (OCI)
Oracle Fusion Cloud (Integrations)
API Design (REST)
Oracle + Legacy Integrations
Performance & Data Modeling
Security & Access (Roles/Grants)
CI/CD (Jenkins, GitHub Actions)
Observability (Grafana, Sentry)
Strategy Workshops
Stakeholder Alignment
Product Discovery
UX Research
Design Systems
What I Do
- ▸ Lead discovery and UX research to align problem statements with measurable outcomes
- ▸ Prototype and ship full-stack features across web dashboards, APIs, and native clients
- ▸ Facilitate cross-functional collaboration between design, engineering, and stakeholders
- ▸ Instrument releases with analytics and monitoring to inform the product roadmap
Education
- ▸ Systems Analysis and Development
- ▸ Product Design — Design Circuit
Certifications
- ▸ 2021 · Oracle Cloud Foundations — Oracle
- ▸ 2021 · Oracle APEX Developer — Oracle
Experience
Download CVMar 2025 – Present
Current
Memora Processos Inovadores
Oracle APEX Developer · ANTAQ: APEX apps for process management and Oracle Database integrations.
Nov 2023 – Present
Current
Serigy
Head of Technology · Leading digital solutions for SMBs with secure, cloud-enabled architectures.
Sep 2023 – Nov 2023
3 months
WW Software
PHP Developer · Guided migration to Laravel and modernized legacy PHP services.
Dec 2022 – Sep 2023
10 months
Minha ISA
Oracle APEX Developer · Built APEX apps with REST integrations and operational reporting.
Apr 2022 – Jun 2022
3 months
Minha ISA
Oracle APEX Developer · Maintained APEX applications focused on usability and performance.
Jul 2018 – Apr 2021
2 years 10 months
EightSystems
Oracle APEX Developer · Evolved APEX modules for PayGate and financial workflows.
Jan 2018 – Jul 2018
7 months
EightSystems
Oracle APEX Developer · Delivered APEX routines for ERP and integrations with legacy services.
Aug 2017 – Oct 2017
3 months
EightSystems
Oracle APEX Developer · Prototyped APEX forms and screens for logistics operations.
Professional experience
5+ years across product engineering, UX, and Oracle APEX development
Projects
The simplest example is kafka + golang
Golang
Kafka
Docker
This article presents a simple way to implement a microservice architecture using Kafka, Golang and Docker.
This project complete serves as my microservices, tech stack complete basic for microservices architecture and it is working flawlessly in my current company. This is a template project that can be used as a starting point for building microservices with Kafka, Golang, and Docker.
🎨
E-commerce Platform
React
Node.js
PostgreSQL
Modern e-commerce solution with real-time inventory, payment processing, and admin dashboard.
A full-featured e-commerce platform built with modern web technologies. Includes real-time inventory management, secure payment processing via Stripe, comprehensive admin dashboard, and customer-facing storefront with advanced filtering and search capabilities.
⚡
Task Management System
Vue
TypeScript
MongoDB
Collaborative task management with real-time updates, file sharing, and team communication features.
A comprehensive task management system designed for teams. Features real-time collaboration, file attachments, commenting system, task dependencies, and powerful reporting tools. Built with Vue.js and TypeScript for a robust and scalable solution.
🚀
View all projects on GitHub →
3 Projects
Articles
Oracle APEX on OCI: Custom Domain & Custom OAuth with Cloudflare Workers
A comprehensive guide to running Oracle APEX on OCI Autonomous Database with a custom domain using Cloudflare Workers, including a robust workaround for OAuth 2.0 redirection issues.
Read moreThe simplest example is kafka + golang
This article presents a simple way to implement a microservice architecture using Kafka, Golang and Docker.
Read moreBuilding scalable REST APIs
Best practices for designing and implementing REST APIs that can handle millions of requests per day.
Read moreReact performance optimization
Deep dive into React rendering behavior and techniques to optimize your application performance.
Read moreModern CSS techniques
Exploring the latest CSS features including Grid, Container Queries, and custom properties for better designs.
Read moreContact
Edgar Ferreira
Product Engineer · Aracaju, Sergipe, Brazil
Phone
(79) 98835-9686
Primary Email
efsn88@gmail.com
Business Email
contato@edgar-ferreira.com
Portfolio
https://edgar-ferreira.com
Languages
Portuguese (Native), English (Professional)
© 2026 Edgar Ferreira. All rights reserved.