Welcome to the Matrix
Giovanni Rosa
I know code.
There is a difference between knowing the path and walking the path. I'm a software technical lead designing and leading production IoT and distributed systems at scale. Take the red pill and I'll show you how deep the rabbit hole goes.
_ Follow the white rabbit.
About Me
Software Technical Lead | IoT & Distributed Systems Specialist
Hi, I'm Gio, a software technical lead from Brazil with over 9 years of experience designing and delivering scalable software platforms. My work focuses on building production systems where architecture, reliability, and long-term maintainability matter.
I hold both a Bachelor's and a Master's degree in Computer Science from UFPR, with academic and professional focus on distributed systems and networked environments. I have designed and delivered full stack and backend solutions using React, Node.js, Java, and Python for international and national projects across aviation, healthcare, industrial IoT, finance, and real estate, working with clients such as SITA, Schneider, Corvalent, and RCI Bank.
Today, I operate through GRDS IT Services, where I lead the design and development of IoT platforms that integrate real-time device data, messaging protocols, and cloud-native infrastructure. My work includes defining system architecture and deploying scalable solutions across AWS and Azure.
Beyond day-to-day development and architecture work, I stay actively engaged with emerging areas such as IoT security, machine learning integration, blockchain-based systems, and augmented reality, continuously exploring how these technologies can be applied to real-world platforms.
Academic Education
- Master in Networks and Distributed Systems at NR2 - University of Paraná (UFPR) - 2020-2023
- Bachelor in Computer Science, University of Paraná (UFPR) 2014-2019
My Skills
There is no spoon. These are the tools I use to design, build, and operate production systems.
Client & Interface Systems
Backend & Distributed Services
Networking & Communication Protocols
Data Storage & Time-Series Systems
Cloud & Platform Engineering
Engineering Tools & Methodologies
Always Learning
Credentials
Credentials earned along the path. Some open doors — others sharpen the mind.
Test of English for International Communication (TOEIC)
ETS, 2014 - grade 975/990
Test of English as a Foreign Language (TOEFL)
ETS, 2016 - grade 580/677
Secure Programming Foundation
IDESP - Instituto Daryus de Ensino Superior Paulista, 2021
Publications & Research
Original research contributions to security, IoT, and distributed systems. Each paper leaves a trace in the code.
Authors: Giovanni R. da Silva, Aldri L. dos Santos
Venue: IEEE Transactions on Network and Service Management (2024)
Authors: Giovanni R. da Silva, Aldri L. dos Santos
Venue: UFPR - Federal University of Paraná (2023)
Authors: Giovanni R. da Silva, Daniel F. Macedo, Aldri L. dos Santos
Venue: SBSeg 2021 - Brazilian Symposium on Information and Computer System Security (2021)
Authors: Agnaldo De Souza Batista; Giovanni Rosa Da Silva; Michele Nogueira De Lima; Aldri Luis Dos Santos
Venue: SBRC 2020 - Brazilian Symposium on Computer Network and Distributed Systems (2020)
Authors: Giovanni Rosa Da Silva; Aldri Luiz Dos Santos; Agnaldo De Souza Batista
Venue: UFPR - Federal University of Paraná (2020)
Work Experience
A progression through systems, scale, and responsibility. Remember, there is no spoon.
Dec 2022 - Present
Software Technical Lead
GRDS IT Services
Leading the design and delivery of two international IoT platforms used for device monitoring and control. Responsible for system architecture, technical direction, and integration of real-time data pipelines using React (Next.js), Node.js, MQTT, and InfluxDB, deployed across AWS and Azure. Platforms integrate cloud-native services including IoT Core, Kinesis, Lambda, Aurora, AppSync, Athena, S3, API Gateway, Cognito, and Amplify.
ReactNext.jsNode.jsMQTTInfluxDBAWSAzureSSTIoT CoreKinesisLambdaAuroraAppSyncAthenaS3API GatewayCognitoAmplifyAug 2022 - Dec 2022
Senior Software Engineer
CI&T - dynaConnections
Led the modernization of connectMLS, a large-scale real estate platform for U.S. realtors, migrating legacy AngularJS and Java systems to React and Spring Boot. Contributed to architectural improvements, scalability, and long-term maintainability.
ReactJavaSpring BootAngularJSReal EstateJun 2021 - Jul 2022
Senior Software Engineer
CI&T - Corvalent
Designed and developed CAT-APM, an IoT platform for asset and device management. Worked on frontend and backend components using React and ClearBlade, contributing to scalable device communication and system integration.
ReactNode.jsIoTClearBladeMay 2021 - Jun 2021
Senior Software Engineer
CINQ - Schneider Electric
Developed AI Backoffice, an internal platform to resolve invoice mismatches, built with Django and React and integrated into global enterprise finance systems.
ReactPythonDjango RESTFinanceJul 2020 - May 2021
Software Engineer
CINQ - SASCAR
Contributed to the development of SASWeb 2, a fleet management platform supporting national logistics operations, using AngularJS and Java Spring Boot in production environments.
AngularJSJavaSpring BootFleet ManagementJan 2020 - Jul 2020
Software Engineer
CINQ - COMPAR
Developed the Tudobem health platform using React and React Native, improving digital engagement between patients and healthcare providers.
ReactReact NativeMaterial UIHealthcareDec 2019 - Jan 2020
Software Engineer
CINQ - Systecon
Modernized the Opus Suite desktop application into a web-based platform using Vue.js and Vuetify, improving usability for logistics planning and operations.
Vue.jsVuetifyModernizationOct 2019 - Dec 2019
Software Engineer
CINQ - RCI Bank
Developed a web application for car dealership management using Angular and Material UI, supporting automotive sales and operational workflows.
AngularMaterial UIAutomotiveDec 2018 - Oct 2019
Junior Software Engineer
CINQ - Imprint Energy
Built a full stack factory control platform using React and Django REST, supporting production monitoring and automation in energy technology environments.
ReactPythonDjango RESTFactory AutomationMar 2015 - Dec 2018
Intern & Junior Developer
CINQ - SITA
Maintained and extended Airfare Insight, a Java Swing application used for aviation pricing analysis, integrated with Oracle databases and WebLogic in enterprise environments.
JavaSwingOracleWeblogicAviation
Languages
Communicating across systems, cultures, and borders. Welcome to my linguistic matrix.
Portuguese
Native
English
Proficient
Experience:
- Influx English School, 3-year program, completed in 2014
- New College Group, intensive program in Manchester (UK), completed in 2015
- Test of English for International Communication (TOEIC), 2014 – grade 975/990
- Test of English as a Foreign Language (TOEFL), 2016 – grade 580/677
Spanish
Intermediate (B1)
Experience:
- Can understand and communicate in everyday situations
- Basic reading, writing, and conversational skills
French
Beginner (A1)
Experience:
- Basic reading, writing, and conversational skills
Italian
Beginner (A1)
Experience:
- Basic reading, writing, and conversational skills
Selected Projects & Technical Experiments
A selection of technical experiments and systems developed across different stages of my engineering career.
Workflow Manager [2016 - 2017]
Internal tooling developed to support data migration and upgrades for the SITA Airfare Insight project, transforming Excel-based workflows into structured JSON data backed by MySQL.
Dionysus [2017 - 2018]
Desktop inventory and sales management system developed for a small business, built with Java 8 and JavaFX and integrated with EPSON TM-T20 fiscal printer APIs.
Database Packager [2018]
Utility tool designed to extract, organize, and package selected files from SVN repositories, providing a user-friendly interface and compressed export for deployment workflows.
Mercurius [2018]
Experimental web platform prototype designed to manage customers, services, inventory, scheduling, and payments for small businesses, built with Spring Boot and Angular. Development was intentionally discontinued as a learning-focused architectural exercise.
Academic & Low-Level Systems Highlights
- Design and implementation of a superpipelined processor architecture using VHDL.
- Resolution of linear systems using conjugated gradient method optimized and implemented in C.
- Construction and testing of the UFPR Informatics Department network using Mininet and Python.
- Graph implementation and resolution of the minimum color problem in C.
- Design and implementation of a custom UDP congestion control algorithm in C++.
Areas of Focus & Curiosity
Domains that guide my research, experimentation, and long-term technical direction.
A core area of my work and research, focused on how connected devices interact, exchange data, and enforce security, privacy, and reliability in real-world environments.
An area of interest for its potential to bridge digital systems and physical environments, particularly in urban, industrial, and context-aware applications.
Explored as a tool to extract insight and adaptive behavior from large-scale data, especially when combined with IoT, security, and user behavior analysis.
Studied for its applications in trust, decentralization, and verifiable systems, particularly in scenarios requiring transparency, resilience, and reduced reliance on centralized control.
An area of interest from a systems and protocol perspective, focusing on consensus mechanisms, incentives, and the security properties of decentralized networks.
Exit the Matrix
Ready to connect? Reach out for collaborations, consulting, or professional opportunities.
Direct Channels
System Status
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."