Micah Contreras
Chandler,AZ
Summary
Systems & Network Administrator with 4+ years of experience supporting enterprise Cisco, VMware, and Linux environments in high-availability settings. Proven ability to manage large-scale infrastructure (150+ virtual machines), maintain secure segmented networks, and automate system administration using Ansible and Bash. CCNA and AWS Cloud Practitioner certified; currently advancing expertise through CCNP Enterprise and RHCSA. Seeking network, Linux, or infrastructure-focused roles with cloud integration.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Systems & Network Administrator (IT2 / E-5)
United States Navy
San Diego, CA
01.2023 - Current
- Lead IT operations across six segmented network environments supporting mission-critical systems
- Manage and mentor a 12-person IT team overseeing network, server, and security operations
- Administer 168+ virtual machines in VMware vSphere including provisioning, patching, and backups
- Manage Windows Server and Red Hat Enterprise Linux systems supporting core infrastructure services
- Configure and troubleshoot Cisco network infrastructure including routing, switching, VLANs, and ACLs
- Implement automation using Ansible and Bash to improve system consistency and efficiency
- Perform vulnerability management using ACAS/Nessus and enforce security compliance standards
- Monitor and respond to security events using SIEM and endpoint protection tools
- Achieved 99.9% uptime and reduced downtime by 20% through proactive monitoring
Information Systems Technician (Training)
United States Navy
Pensacola, FL
01.2022 - 01.2023
- Completed advanced training in network administration, cybersecurity, and systems operations in preparation for fleet deployment
Education
Bachelor of Science - Information Technology
Western Governors University
Salt Lake City12-2025
Skills
- Networking: Cisco (Catalyst, ISR, Firepower), TCP/IP, VLANs, OSPF, BGP, ACLs, VPN, QoS
- Systems: VMware vSphere/ESXi, Windows Server, Active Directory
- Linux & Automation: RHEL, Ansible, Bash
- Security: ACAS/Nessus, SIEM, STIG/RMF
- Cloud: AWS (EC2, S3, VPC, IAM)
Certification
- Cisco Certified Network Associate (CCNA) — 2024
- CompTIA Security+ — 2024
- CompTIA Network+ — 2025
- CompTIA A+ — 2025
- AWS Cloud Practitioner — 2025
- ITIL 4 Foundation — 2025
- LPI Linux Essentials — 2025
- CCNP Enterprise (In Progress) — Est. 2026
- RHCSA (In Progress) — Est. 2026
Timeline
Systems & Network Administrator (IT2 / E-5)
United States Navy
01.2023 - Current
Information Systems Technician (Training)
United States Navy
01.2022 - 01.2023
Bachelor of Science - Information Technology
Western Governors University