Eric Gargiulo

Eric Gargiulo

Linux Systems Engineer building automation that holds up under pressure.

About

I'm a Linux Systems Engineer with 5+ years of experience automating large-scale Linux and FreeBSD environments at Verisign, where I own OS release pipelines and help stabilize complex authentication infrastructure. I work primarily in Python, Ansible, and Jenkins-driven CI/CD, provision infrastructure with Terraform on OpenStack, and orchestrate workloads with Kubernetes (CKA in progress). I like writing practical automation that quietly removes operational toil.

Experience

Linux Systems Engineer · Verisign 2021 – Present
Identity & Authentication Team
  • Joined directly out of college as primary on-call for a large-scale, understaffed FreeIPA/Kerberos environment in active crisis.
  • Diagnosed and eliminated circular dependencies in the user/group structure, cutting on-call pages from nearly twice daily to roughly once a month; the environment has remained stable for years post-handoff.
  • Served as primary point of contact in the team's internal support channel, resolving permissions and authentication issues for customers across the organization.
  • Maintained Splunk dashboards for operational visibility across authentication infrastructure.
  • Sustained 24/7 on-call coverage, resolving critical incidents under tight timelines.
Builds & Operating Systems Team (moved via team reorg)
  • Took ownership of a legacy Node.js/MongoDB CMDB REST API deployed across 304 hosts spanning four environments and four global regions, frequently swung in and out of service.
  • Orchestrated full teardown-and-rebuild cycles (~3x/month) using Terraform for OpenStack infrastructure provisioning and Ansible for configuration, with Jenkins automation throughout.
  • Built end-to-end FreeBSD release automation using Jenkins pipelines, poudriere-based ports builds, and custom tooling to synchronize ports trees across distributed infrastructure.
  • Developed upstream-to-internal OS ingestion automation for reproducible, compliant image generation.
  • Authored Ansible playbooks enforcing RHEL 8 and FreeBSD CIS benchmark controls across approximately 100 hosts spanning four environments.
  • Attended BSDCan 2025 and the FreeBSD Developer Summit in Ottawa, staying current with upstream FreeBSD development and community practices.

Data Engineering Co-op · UPS Summer 2020 – Spring 2021
  • Began as a summer intern and extended into a part-time (20 hrs/week) co-op through senior year; upon graduating, declined a full-time Data Engineer offer to join Verisign as a Software Engineer.
  • Built internal Power BI dashboards to surface operational metrics for business stakeholders.
  • Won "Most Complete Product" at an internal hackathon for a Python/Tkinter utility that automated and simplified a marketing team's directory management workflow, designed with a GUI so non-technical users could operate it without assistance.

Contract Software Development · Seton Hall University 2019 – 2021
  • Contracted by a sports science researcher to parse and analyze high-frequency motion capture data (144 Hz, hundreds of thousands of rows per session) from Vicon Nexus-equipped baseball pitchers; built a configurable Python pipeline to detect user-defined biomechanical patterns.
  • Contracted by a biology researcher to build a DNA subsequence search tool in Python; implemented Aho-Corasick string matching for efficient multi-pattern search across ATGC sequences.

Personal Infrastructure

Self-host a personal website and several game servers on a Raspberry Pi for fun; deployed and maintained end-to-end via custom Ansible playbooks.

Skills

Operating Systems

RHEL / CentOSFreeBSDUbuntu

Automation & Config Mgmt

Ansible (extensive)BashPython

Infrastructure as Code

Terraform (OpenStack)

CI/CD

Jenkins (Groovy pipelines)GitLab CI

Cloud & Virtualization

OpenStackAWS (EC2)GCP

Security & Compliance

CIS Benchmarks (RHEL 8, FreeBSD)FreeIPAKerberos

Observability

Splunk

Containerization

Kubernetes (CKA in progress)Docker

Version Control

Git

Other

FreeBSD ports / poudriereMongoDBpfZFSSelf-hosted web/game server infrastructure

Education & Certifications

Seton Hall University
B.S. Computer Science
2017 – 2021
Certified Kubernetes Administrator (CKA)
In Progress
Expected 2026

Contact

Reston, VA — Open to Remote