Languages
01
- TypeScript
- JavaScript
- Java
- C++
- C#
- Python
- SQL
$ echo "Hello, world"
Jadir Junior
Fullstack Developer · IoT & Distributed Systems · Event-Driven Architecture
I build scalable end-to-end platforms — from device-layer communication to real-time dashboards.
~/system.ts
const engineer = {
name: 'Jadir Junior',
focus: ['Backend', 'IoT',
'Distributed Systems'],
arch: ['EDA', 'DDD', 'Multi-tenant'],
shipping: true,
};01. About
Fullstack developer and Computer Engineering student (IFSP). I build systems end to end — from the interface to the backend, through data and infrastructure — delivering scalable, event-driven platforms, from multi-tenant SaaS to distributed messaging, RBAC-based access control and IoT.
I had an international experience in Portugal (IP of Portalegre), working with distributed systems. Today I develop a corporate ERP and lead a production-grade IoT platform through scientific research.
- Location
- São Paulo, Brazil
- Languages
- Portuguese · Fluent English
- Status
- Available for opportunities
- Focus
- Backend · IoT · EDA
02. Stack
The technologies I use to design end-to-end distributed systems. Highlighted are the anchors of my work.
03. Featured project
Scientific Research (IFSP) · 2025 — Present
In developmentSimpIoTSensor Integration and Monitoring Platform for Internet of Things
An evolution of the work started in the CommSenso extension project, SimpIoT is a highly-available, multi-tenant digital platform for orchestrating, monitoring and centrally managing IoT ecosystems. It acts as a hardware-agnostic layer, integrating sensors and devices over MQTT and HTTP/REST with JSON payloads, and serves as a central sensing hub for university research and monitoring.
Technologies
- NestJS
- Next.js
- Apache Kafka
- MQTT
- BullMQ
- Redis
- PostgreSQL
- Docker
- Prometheus/Grafana/Loki
In development
Admin dashboard, a mobile app to manage measurement workflows and generation of abstract visualizations from sensor data.
04. Projects
A selection of work focused on architecture, distributed systems and data.
05. Career
Applying engineering in real contexts — from industry to research.
Nov/2024 — PresentAraçatuba, Brazil
Fullstack Developer (Internship)
@ Instituto Álamo
Built and shipped 6+ production features for a finance-focused corporate ERP, including service invoicing, product tax registration, automated bank-slip generation and a complete service-order management module that increased the client's productivity by at least 30%, in an agile environment.
- Node.js
- TypeScript
- React
- SQL
2025 — PresentSão Paulo, Brazil
Scientific Research — SimpIoT
@ IFSP
Leading the development of a production-grade IoT platform, an evolution of the work started in CommSenso: multi-tenant event-driven architecture, custom MQTT broker, hierarchical RBAC and an observability stack.
- NestJS
- Apache Kafka
- MQTT
- PostgreSQL
- Docker
2023 — 2024São Paulo, Brazil
Extension Project — CommSenso
@ IFSP
An extension project focused on composting, where I built a basic system to acquire and store sensor measurements — the groundwork that later led to the conception of SimpIoT.
- IoT
- Sensors
- Data acquisition
06. Education
Academic foundation and competitions — from Brazil to Portugal.
Jan/2021 — Dec/2026
BrazilBachelor's in Computer Engineering
Federal Institute of São Paulo (IFSP)
Sep/2024 — Feb/2025
PortugalComputer Engineering · Exchange Program
Polytechnic Institute of Portalegre (IPPortalegre)
Achievements & Competitions
- ★1st place among 25+ teams at the InterIF Programming Marathon (2025)
- ›Participation in the SBC Programming Marathon
07. Contact
I'm open to opportunities in backend, IoT and distributed systems.