Jeremy Grillo
@jeremygrillo
Network Operations Administrator and Cisco-certified troubleshooter specializing in routing, switching, and reliable connectivity.
United StatesWhat I'm looking for
I’m a Cisco Certified Network Associate (CCNA) with CompTIA Security+ credentials, and I graduated Cum Laude with a Bachelor’s degree in Business Administration and Management. I build my work around strong TCP/IP and OSI Model fundamentals, using routing and switching expertise—like OSPF, EIGRP, VLANs, and IP address management—to keep networks stable and secure.
In my current Network Operations Administrator role, I’m the first responder for Tier 1 troubleshooting, supporting cellular, VSAT, and microwave connectivity while coordinating with customers and the ISP. I troubleshoot routers, switches, PI, and VMware servers, generate and resolve tickets from Spectrum and SolarWinds, and configure and ship Cisco equipment. I also teach and create CCNA online courses through netacad.com, translating real troubleshooting into hands-on learning for subnetting and routing/switching concepts.
Experience
Work history, roles, and key accomplishments
Adjunct Networking Instructor
Northwest Vista College
Jan 2022 - Present (4 years 5 months)
Taught CCNA 1 (Introduction to Networking) and CCNA 2 (Switching and Routing), grading assignments and responding to students, teachers, and faculty. Created online coursework on netacad.com to support instruction.
Network Operations Admin
Marathon Petroleum
Jan 2020 - Apr 2026 (6 years 3 months)
Served as a Tier 1 first responder for troubleshooting cellular, VSAT, and microwave connectivity issues. Created and resolved tickets from Spectrum and SolarWinds, configured and shipped Cisco routers and switches, and maintained network documentation.
Network Lab Technician (Volunte
Northwest Vista College
May 2019 - Dec 2019 (7 months)
Assisted with management and configuration of classroom routers and switches for Cisco Networking Academy. Provided tutoring on subnetting and router/switch configurations and supported maintenance and exam preparation.
Electrical Apprentice
CDI Technologies
Oct 2018 - Mar 2019 (5 months)
Assisted journeyman electricians with electrical construction work using power tools and supported installation activities. Ran fiber optic and copper wires for customers and transported materials using a company truck.
Prevented loss of funds by analyzing high-risk and potentially fraudulent wire transactions. Verified transaction validity with internal bankers and customers and made decisions to cancel, pend, or approve transfers.
Education
Degrees, certifications, and relevant coursework
Texas A&M University–Kingsville
Bachelor’s degree in Business Administration and Management, Business Administration and Management
2009 - 2011
Grade: Cum Laude
Earned a bachelor’s degree in Business Administration and Management, graduating cum laude in December 2011.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
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