Marcelo Lima
Solutions Engineer at Cisco
Tampa, Florida, United States
Summary
🤩
Rockstar🎓
Top SchoolMarcelo Lima is a seasoned systems engineer with 12 years of experience delivering security solutions and technical enablement for global service providers and MSSP partners, currently focused on Palo Alto Networks' GSI accounts. He blends pre-sales consulting, onsite and remote demos, and go-to-market support with deep hands-on offensive security expertise evidenced by significant contributions to high-profile open-source tools like CrackMapExec and SILENTTRINITY. Comfortable across cloud, network, and endpoint security, Marcelo also automates red-team infrastructure and builds backend tooling (Python, C#, Nim) for post-exploitation and reconnaissance workflows. His background in training and channel enablement underscores a talent for translating complex technical concepts into practical, deployable solutions. Based in Tampa, he pairs enterprise sales engineering with an unconventional hacker’s mindset—often weaponizing niche languages and tooling to stress-test defenses.
12 years of coding experience
19 years of employment as a software developer
Bachelor Information Technology, Bachelor Information Technology at Universidade Santa CecíliaB.S. Cybersecurity and Information Assurance Cybersecurity, B.S. Cybersecurity and Information Assurance Cybersecurity at Western Governors University
Spanish, Portuguese, English
Github Skills (89)
shellcode10
penetration-testing10
python10
vulnerability-scanners10
wp-api10
windows10
databases10
authentication10
bash10
winapi10
terraform10
chromeless10
security10
asp-net10
automation10
Programming languages (19)
Github contributions (5)
byt3bl33d3r/DeathStar
May 2017 - May 2021
Uses Empire's (https://github.com/BC-SECURITY/Empire) RESTful API to automate gaining Domain and/or Enterprise Admin rights in Active Directory environments using some of the most common offensive TTPs.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:29 commits, 13 PRs, 42 pushes in 4 years
Contributions summary:Marcelo significantly modified the `DeathStar.py` file, suggesting a focus on enhancing the core functionality of the `deathstar` tool. The changes addressed Empire REST API fixes and included adjustments to module execution and result retrieval. Additionally, the user introduced new features like a Kyber Crystals laser system, which likely involves custom scripting or logic to perform Active Directory attacks leveraging the Empire framework. The changes also indicate a deeper understanding of the tool's internal workings.
active-directoryadmin-rightsrestrestful-apisecurity
Coalfire-Research/Red-Baron
Nov 2017 - Oct 2018
Automate creating resilient, disposable, secure and agile infrastructure for Red Teams.
Role in this project:DevOps Engineer
DevOps EngineerContributions:75 commits, 2 PRs, 16 pushes in 11 months
Contributions summary:Marcelo primarily focused on automating and configuring infrastructure for red team operations. Their contributions included modifying shell scripts to install dependencies, automating SSH key generation, integrating Let'sEncrypt certificate generation, and adding support for DNS entries. They also updated and configured core dependencies such as those required by Cobalt Strike and Metasploit. These changes indicate a focus on streamlining and securing infrastructure for red team activities.
agileinfrastructure-as-codesecurity-toolsred-teamsterraform-module
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