Senior Network Engineer
About the Opportunity
Butterfly Staffing is seeking a Senior Network Engineer to support and maintain enterprise-level network infrastructure across multiple environments.
This role is responsible for the design, implementation, troubleshooting, and optimization of secure network systems, ensuring reliability, performance, and security across LAN/WAN and wireless environments.
This is a hands-on position requiring strong technical depth, problem-solving ability, and experience working in dynamic, operational environments.
Responsibilities
- Design, implement, and maintain LAN/WAN and wireless network infrastructure
- Configure and support routers, switches, firewalls, VPNs, and security appliances
- Monitor network performance and respond to alerts, outages, and service disruptions
- Troubleshoot network issues and support root cause analysis and resolution
- Evaluate and deploy new network services and technologies
- Maintain accurate network diagrams, configurations, and documentation
- Assist with system upgrades, migrations, and infrastructure improvements
- Support network automation, policy management, and analytics tools
- Participate in on-call rotation and provide after-hours support as needed
- Collaborate with internal IT teams and support ongoing projects
Qualifications
- Bachelor’s degree or 10+ years of relevant experience
- Minimum of 5 years supporting Microsoft-based environments
- Strong understanding of:
- LAN/WAN | DNS | Routing | Switching
- Network security principles and infrastructure
- Hands-on experience with:
- Cisco networking (routers, switches, wireless)
- Firewalls and security appliances
Preferred Experience
- Cisco Catalyst Center (DNA Center)
- Cisco Identity Services Engine (ISE)
- Network automation and software-defined networking (SDN)
- Zero Trust architecture and network segmentation
- Wireless networking (design, troubleshooting, RF fundamentals)
- Firepower Management Center (FMC)
- Firewall migrations (e.g., Juniper to Cisco NGFW)
Work Environment
- On-site role supporting operational environments, including industrial settings
- Must be comfortable working in indoor and outdoor conditions
- Ability to lift up to 50 lbs and perform physical installation tasks (cabling, equipment, etc.)
- May require work in tight spaces and on vessels
- Participation in on-call rotation required
Additional Requirements
- Strong analytical, troubleshooting, and problem-solving skills
- Ability to work independently and manage multiple priorities
- Excellent communication and documentation skills
- Must be reliable with consistent on-site attendance
- Ability to pass a background and credit check