Nate Guagenti
Owner at Brasi Tech
Columbus, Ohio, United States
Summary
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RockstarNate Guagenti is an experienced software professional and business owner in Columbus, Ohio with 11 years in engineering and DevOps-focused open-source contributions. He has hands-on expertise improving deployment and orchestration for security tooling—most notably streamlining installation, Docker configs, and resource requirements for the well-known HELK threat-hunting stack. Nate also enhances detection tooling interoperability, contributing backend improvements to the Sigma rules repository to better map Microsoft Defender ATP fields and handle complex Elasticsearch query patterns. He blends practical scripting and system tuning with a focus on reliable, reproducible installs and backend compatibility, and runs his own firm, Brasi Tech, where he applies that operational rigor to client projects. An understated strength is his attention to backward-compatible maintenance and merging conflicting platform changes to keep tooling usable across environments.
11 years of coding experience
Github Skills (23)
docker10
back-end-development10
python10
amazon-elasticsearch10
bash10
dockers10
sia10
security10
elasticsearchquery10
aws-elasticsearch10
elasticsearch10
devops10
elasticsearch-api10
kibana9
github-ci9
Programming languages (15)
Github contributions (5)
Cyb3rWard0g/HELK
Aug 2018 - May 2021
The Hunting ELK
Role in this project:
DevOps Engineer
DevOps EngineerContributions:302 commits, 111 PRs, 264 pushes in 2 years 9 months
Contributions summary:Nate primarily focused on improving the HELK installation process and associated scripts. They updated Docker-related configurations, including Docker Compose and Docker CE versions, and reduced minimum system requirements. The user made several changes to the installation scripts (helk_install.sh and helk_docker_install.sh), including the addition of system settings and password management, along with minor code cleanup and optimization. The user demonstrated familiarity with the HELK project's components like Elasticsearch and Kibana, managing their configurations and setups.
dockerhubelkelasticjupyter-notebookdocker
SigmaHQ/sigma
Apr 2017 - Feb 2022
Main Sigma Rule Repository
Role in this project:Backend Engineer
Backend EngineerContributions:5 reviews, 52 commits, 37 PRs in 4 years 11 months
Contributions summary:Nate primarily focused on enhancing the `sigma` repository's backend functionality, particularly concerning the Microsoft Defender ATP (mdatp) backend. Their contributions involved modifying the `mdatp.py` file to improve field mappings and adapt to changes in the ATP platform, addressing merge conflicts. Furthermore, the user made several updates to the `elasticsearch.py` backend to improve the processing of wildcards, including escape sequences and quoted values. These changes improved the functionality and compatibility of the sigma rules with various backends.
signaturessysmonrulesecurityids
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