Hello! I'm Guilherme Guilherme, a Computer Science graduate and current Master’s student in Cybersecurity and Forensic Computing at the Instituto Politécnico de Leiria. I have professional experience as a Network and Operating Systems Consultant, providing IT support, systems administration, and network management across Portugal, Angola, and Mozambique.
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Master’s in Cybersecurity and Forensic Computing (Ongoing)
Instituto Politécnico de Leiria
Focus on applied research, industry collaboration, and advanced digital forensics. -
Bachelor in Computer Science
Instituto Politécnico de Leiria
Focus on software development, virtualization, DevOps, cybersecurity, digital forensics, and systems/network administration.
- Network and Operating Systems Consultant – C.P.S. Consultores de Informática, S.A., Leiria
Responsibilities included IT support, system administration, network configuration (routers, switches, NAS, Fortinet firewalls), Office 365 administration, Artsoft ERP support, mentoring interns, and coordinating teams for office IT deployments.
- Languages: Python, C, C#, Java, HTML/CSS, JavaScript (Vue.js), PHP, Perl
- Systems & Virtualization: Linux, Windows Server, VMware, Hyper-V, Proxmox, Citrix, Docker, HP servers
- Networking & Security: IPv4/IPv6, VLANs, DHCP, NAT, OSPF, RIPv2, BGP, MPLS VPN, Fortinet, QNAP/Synology NAS, iptables, OWASP
- Software & Tools: Office 365, Artsoft ERP, Git, Laravel, Node.js, RESTful API, ADB, MobSF, Jadx, ALEAPP
- Hardware: HP, Brother, Zebra printers, print servers
- Team & Project Management: Mentoring interns, coordinating teams, managing assets and IT office setups
Python program to extract, analyze, & decompile Android data via ADB shell.
Forensic analysis of 10 Android gym apps with ALEAPP modules for extracting digital artifacts and identifying security vulnerabilities.
Simplifying Kubernetes cluster management with Python and Tkinter.
Planning, designing, configuring, and documenting a multi-ISP network using GNS3.
Managing Mikrotik routers through an intuitive SDN controller built with Python and Tkinter.
For my Bachelor's final project, I conducted a forensic analysis in Android of mobile gym applications, performing artifact analysis, static analysis, dynamic analysis, and identifying vulnerabilities based on OWASP Top 10. This work led to the development of the following repositories:
I achieved a final grade of 19 out of 20 for this project.
“Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say.” – Edward Snowden
Feel free to explore my repositories and reach out if you want to collaborate on exciting projects. Let's make the digital world a safer place together!