Guilherme Araujo Thomaz

About me

D.Sc. student in the Teleinformatics and Automation Group (GTA) under the supervision of Prof. Miguel Elias M. Campista, interested in:

Federated Learning Optimization Over Wireless Networks

Radio Environment Maps (REMs) and Other Tools for Spectrum Management

Anonymization, Trusted Execution Environments and Diferential Privacy Techniques

Deep Learning-based Distributed Applications

Educational background

D.Sc student in Electrical Engineering at COPPE, UFRJ, since 2026.

M.Sc in Electrical Engineering at COPPE, UFRJ, finished in 2026.

Electronics and Computer Engineer graduated at Poli, UFRJ, finished in 2024.
Magna Cum Laude (degree 9,3) honor distinction.

Electronics technician graduated at CEFET-RJ, finished in 2018.

Experience

Libraries for Federated Learning (Flower) and Deep Neural Netwroks for image classification (PyTorch).

Software architecture design with Docker, RabbitMQ, Flask APIs, etc.

Tabular data manipulation using Pandas, Numpy, Matplotlib, and Scikit-Learn.

Shell script for automating performance analysis experiments in Linux OS.

Low-level C/C++ for Arduino/ESP/PIC microcontrollers, ARM TrustZone SoCs, and Intel SGX.

Good knowledge of Electronic Circuits, Digital Communications, and Networking.

Publications

Last update: Feb 18th, 2026

Thomaz, Guilherme Araujo. "Mixed Confidential Federated Learning as a Service for Vehicles in Challenging Network Conditions", Master Thesis. PEE/Coppe/UFRJ, 2026.

dos Santos, Luan L., et al. "Privacy-Preserving State Of Health Prediction for Lithium-ion Batteries in electric vehicles using Federated Learning" IEEE International Conference on Intelligent Vehicles (IV 2025)

dos Santos, Luan L., et al. "Lithium-ion battery aging estimation with federated deep learning" Workshop on Communication Networks and Power Systems 2025

Manhães, Breno V., et al. "Avaliação da Privacidade Diferencial Aplicada ao Aprendizado Federado Através de Ataques de Inversão de Modelo" Simpósio Brasileiro de Cibersegurança. SBC. 2025.

de Souza, Lucas A. C., et al. "DIGA: Definição e Implementação de Modelos com Aprendizado Generativo para Aplicações Inteligentes" Workshop de Gerência e Operação de Redes e Serviços (WGRS) do Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. SBC. 2025.

Thomaz, Guilherme A., et al. "End-to-End Trusted Computing Architecture for Vehicular Over-the-Air Updates" Annals of Telecommunications (2025).

Thomaz, Guilherme A., et al. "AGATA - Arquitetura para Gerenciamento Automático e Tarefas de Aprendizado Federado" Salão de Ferramentas do Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. SBC. 2025.

Thomaz, Guilherme A., et al. "UBOTA Protocol-UDP Bursts for Over-the-Air Secure Vehicular Software Updates" 2024 IEEE 13th International Conference on Cloud Networking (CloudNet). IEEE, 2024.

Thomaz, Guilherme A., et al. "Atualização pelo Ar (OTA) de Dispositivos Embarcados Veiculares com Computação Confiável Fim-a-Fim" Anais do XLII Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. SBC, 2024.

Thomaz, Guilherme Araujo. "Private Processing of Internet of Things Data in Clouds with Security by Hardware", Final Undergraduate Project. DEL/POLI/UFRJ, 2024.

Mattos, Diogo Menezes Ferrazani, et al. "Ameaças e Vulnerabilidades em Open RAN: Desafios e Soluções", Minicursos do XXIII Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais. SBC, 2023.

Thomaz, Guilherme A., et al. "CACIC-DevKit: Construção de Sistemas IoT com Políticas de Acesso Customizáveis e Segurança por Hardware", Salão de Ferramentas do XLI Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. SBC, 2023.

Thomaz, Guilherme A., et al. "Tamper-proof Access Control for IoT Clouds Using Enclaves", Ad Hoc Networks Journal, 2023.

Camilo, Gustavo Franco, et al. "Redes de Canais de Pagamento: Provendo Escalabilidade para Pagamentos em Criptomoedas", Minicursos do XL Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos, SBC, 2022.

Thomaz, Guilherme A., et al. "CACIC: Controle de Acesso Confiável Usando Enclaves a Dados em Nuvem da Internet das Coisas." Anais do XL Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. SBC, 2022.

Rebello, Gabriel Antonio F., et al. "A security and performance analysis of proof-based consensus protocols." Annals of Telecommunications 77.7 (2022): 517-537.

Thomaz, Guilherme A., et al. "Architecture and Performance Comparison of Permissioned Blockchains Platforms for Smart Contracts." 2021 IEEE Global Communications Conference (GLOBECOM). IEEE, 2021.

Thomaz, Guilherme A., et al. "Uma análise comparativa da arquitetura e desempenho de plataformas de corrente de blocos permissionadas para contratos inteligentes." Anais do IV Workshop em Blockchain: Teoria, Tecnologias e Aplicações. SBC, 2021.

Other activities

Participated in a project in colaboration with a transport company related with computer vision and safety alerting (2025)

Participated in a RNP colaboration project for anonymizing a dataset with real cybersecurity incidents (2025)

Participating in a project in cooperation with Anatel for investigating AI applications in spectrum management (2025)

Participating in AVADiP Project, in cooperation with Stellantis, MobWay, and USP. Development of secure distributed learning architectures for Fiat electric vehicles (2024)

Scientific Initiation (IC) in Electronics and Computer Engineering at UFRJ. Supervised by Otto Carlos M. B. Duarte. Research in blockchains (2020 to 2021).

Authonomous Work at Umaker start-up company (2019). Assistence in Workshops. IC in Electronics Engineering at CEFET-RJ. Development of educational kits for teaching Electronics at Umaker start-up company (1st semester of 2019).

Electronics technician intern at Cohesive Sediments Dynamics Laboratory (LDSC, Coppe). Computers and instrumentation circuits repairs (2017 and 2018).