Jorge Silva Júnior

JJ

Looking for a job

Jorge Silva Júnior

@jorgesilvajnior

Backend developer at Grão Direto, implementing real-time grain pricing and CBOT market-quote updates with Apache Kafka.

At Grão Direto, I develop APIs and microservices for a grain-trading platform, including features for transaction flows, pricing, and large accounts. I implemented the real-time CBOT quote update flow with Apache Kafka, processing and distributing market data across platform services and interfaces.

Previously, at Codiub Solução Digital, I developed an API service for the property-tax calculation system and optimized database queries to improve processing time. I also contributed to a reporting app API and its authentication and authorization integration.

Experience

Work history, roles, and key accomplishments

GD

Current

Desenvolvedor Web FullStack

Current

Grão Direto

Jun 2025 - Present (1 year 5 months)

Desenvolvimento e evolução de APIs e microsserviços com Node.js, TypeScript e NestJS em plataforma de negociação de grãos, incluindo arquitetura de fluxo de cotações CBOT em tempo real com Apache Kafka e desenvolvimento de microfrontends com React, Angular e Single-SPA.

NodeJS TypeScript NestJS React Angular SingleSPA Kafka MySQL Redis Microservices

CD

Desenvolvedor Web Java

Codiub Solução Digital

Oct 2022 - May 2025 (2 years 7 months)

Desenvolvi API para cálculo de IPTU e otimizei queries de banco de dados, melhorando desempenho de serviços. Contribuí na arquitetura e desenvolvimento de API para aplicativo de denúncias, incluindo autenticação e autorização.

Java Maven Spring Framework React Nginx Docker AWS

IF

Petiano

IFTM

Feb 2022 - Apr 2023 (1 year 2 months)

Atuação voluntária no PET-TEC, ministrando minicursos sobre Git e implementando programa de monitoria para reduzir evasão estudantil.

Git Teaching Mentorship

Education

Degrees, certifications, and relevant coursework

IM

Instituto Federal do Triângulo Mineiro

Graduação, Análise e Desenvolvimento de Sistemas

Graduation in Analysis and Systems Development from the Federal Institute of Triângulo Mineiro.

IM

Instituto Federal do Triângulo Mineiro

Técnico, Eletrônica

Technical course in Electronics integrated with high school from the Federal Institute of Triângulo Mineiro.

AE

AWS Educate

Certificate, Generative AI

Certificate in Introduction to Generative AI from AWS Educate.

AL

Alura

Certificate, Microservices

Certificate in Microservices in Practice: Understanding Decision Making from Alura.

AL

Alura

Certificate, Spring Boot

Certificate in Spring Boot 3: Document, Test, and Prepare an API for Deployment from Alura.

CI

Cisco

Certificate, Cybersecurity

Certificate in Cybersecurity Essentials from Cisco.

Tech stack

Software and tools used professionally

MySQL

Node.js

Spring Boot

Spring

NestJS

Spring Framework

Redis

React

Java

Kafka

TypeScript

Git

Docker

NGINX

Single-spa

Apache Kafka

AWS

Claude

Availability

Looking for a job

Location

Brazil

Authorized to work in

Salary expectations

77k+ BRL

Social media

Job categories

Backend Engineer Full Stack Developer

Skills

Backend Development API Development Microservices Real time Data Processing Commodity Pricing Kafka NodeJS TypeScript NestJS Java Spring Framework Spring Boot React Angular SingleSPA

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