Oliver Crawford
Denver,CO
Summary
Experienced Network Engineer with a proven track record in managing and optimizing network infrastructure for the Colorado Department of Human Services. Skilled in configuring and maintaining Cisco switches, Palo Alto firewalls, and various network monitoring tools. Adept at leveraging AI software and tools to enhance network performance, automate tasks, and improve security measures. Expert in troubleshooting complex network issues, ensuring high availability, and implementing robust security protocols. Known for excellent problem-solving abilities, a proactive approach to network management, and effective collaboration with cross-functional teams. Dedicated to enhancing network performance and security, with a strong focus on maintaining compliance with industry standards and organizational policies.
Overview
8
8
years of professional experience
Work History
Network Engineer
Istonish Inc.
04.2023 - 06.2024
- Palo Alto Firewall Administration: Configured and managed Palo Alto Networks firewalls across 85 counties for the Colorado Department of Human Services (CDHS) infrastructure to ensure robust security and efficient network traffic management.
Implemented and maintained security policies, NAT rules, and VPN configurations to support secure remote access and inter-site connectivity.
Performed regular firmware and software updates, ensuring that firewalls are running the latest security patches and features.
Conducted troubleshooting and root cause analysis of network issues, including BGP handoff problems and connectivity disruptions.
- Network Security Monitoring and Alerts:Integrated SolarWinds for comprehensive monitoring of firewall health, performance, and security incidents.
Configured alerting mechanisms to notify the Managed Service Team through Istonish ServiceNow, ensuring prompt response and escalation procedures.
Developed and enforced SLAs for network security incidents, optimizing incident response times and minimizing downtime.
- Cisco Switch Configuration and Management: Configured and managed CDHS Cisco switches, including Catalyst and Nexus series, to ensure optimal network performance and reliability.
Implemented VLANs, trunking, and inter-VLAN routing to segment and secure network traffic efficiently.
Configured and maintained spanning tree protocol (STP) and rapid spanning tree protocol (RSTP) to prevent network loops and ensure high availability.
Service Desk Analyst
Istonish Inc.
04.2022 - 04.2023
- Engaged in user support interactions via telephone, chat and email platforms.
- Entered service tickets into ServiceNow to facilitate faster problem identification and resolution.
- Responded to user operational issues with desktop computers, laptops and mobile electronic devices to enable problem resolution.
- Identified system hardware, network infrastructure and connectivity issues that prevented execution of user-initiated tasks.
- Respond to inbound tickets and calls that require PC and cyber security troubleshooting via ServiceNow
- Maintain user accounts via Windows Active Directory
- Installed and managed applications for multiple clients across U.S. using Microsoft RDP, DameWare, Ivanti Management Console, Bomgar, and SCCM
Chat Desk Supervisor
NISSAN-POMEROY, Denver
02.2020 - 04.2022
- Respond to 75-100 inbound chats/tickets that require PC and cyber security troubleshooting via Service Now
- Monitor and maintain accounts in CICS & CICSP Mainframe as well as assisted users with TSO
- Maintain user accounts via Windows Active Directory
- SAP set up for multiple domains (PRD, ItemSpec, CFP, PBW/PJW)
- Oversaw metrics for chat team through Sharepoint, held one on ones with agents regarding their metrics and created action plans to ensure continuous growth
- Create and update knowledge base articles to ensure agents are able to follow SOP
Site Support IT & Customer Care Representative
COMCAST BUSINESS CLASS
08.2016 - 02.2020
- As customer care representative, answered 30-40 inbound calls daily and assisted business owners with account management as well as provided site support
- Later promoted to onsite IT, main responsibilities included installing and configuring computer hardware, software, systems, printers and scanners
- Monitoring and maintaining computer systems and networks
- Responding in timely manner to service issues and requests
- Performed equipment repair and replacement as needed
Education
CCNA - CCNA
Cisco Certified Network Associate
Remote09.2024
Security+ Certification - Computer And Information Systems Security
ACI Learning Inc
Denver, CO07.2022
Cyber Technician Certification -
PICKENS TECHNICAL COLLEGE
Aurora, CO06.2020
Skills
- Palo Alto firewall expertise
- Cisco switching expertise
- Network Performance Analysis
- Technical Support
- SolarWinds support
- Remote work support
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Network Engineer
Istonish Inc.
04.2023 - 06.2024
Service Desk Analyst
Istonish Inc.
04.2022 - 04.2023
Chat Desk Supervisor
NISSAN-POMEROY, Denver
02.2020 - 04.2022
Site Support IT & Customer Care Representative
COMCAST BUSINESS CLASS
08.2016 - 02.2020
CCNA - CCNA
Cisco Certified Network Associate
Security+ Certification - Computer And Information Systems Security
ACI Learning Inc
Cyber Technician Certification -
PICKENS TECHNICAL COLLEGE
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