Enterprise Network & Security Engineer

Core4ce; United States; Remote; USD 100,000 - 170,000; Full time

Benefits offered by this job

401(k) match

Medical coverage

Training & Certifications

Tuition assistance

Parental leave

Paid holidays

Job summary

Core4ce is seeking an Enterprise Network Services Engineer to design, implement, and maintain secure and scalable enterprise network infrastructures.

The role requires deep knowledge of TCP/IP, encryption, routing, firewall management, load balancing, and automation, with responsibilities spanning design, deployment, troubleshooting, and compliance across multi-VRF Cisco environments and cloud integrations.

Qualifications

• Minimum 4 years of hands-on experience as a Network Administrator or Network Security Engineer.
• Strong knowledge of OSI and TCP/IP network models, TCP 3-way handshake, and window scaling.
• Experience with Palo Alto and Cisco firewalls.
• Experience with F5 LTM, GTM, APM, ASM for load balancing and security.
• Willingness to obtain CCNP within 45 days of hire.
• Ability to obtain a Secret Clearance (preference for Active Secret)

Responsibilities

• Design, configure, install, and manage enterprise network infrastructure, including routers, switches, firewalls, and load balancers.
• Plan and schedule the installation or modification of network hardware and software.
• Implement and maintain secure network configurations across multi-VRF Cisco routers and enterprise environments.
• Troubleshoot and analyze TCP/IP network traffic, including TCP 3-way handshake, TCP window scaling, and MSS.
• Capture and analyze network packets using TCPDump (Linux) and Flow Monitor Capture (Cisco ASR).
• Implement multi-protocol routing solutions with BGP, OSPF, and VRF-based networks.
• Use Wireshark, TCPDump, and other diagnostic tools for network performance analysis.
• Perform TLS/SSL handshake troubleshooting and security configuration.

Skills

Network engineering

Security concepts

Scripting (Python/Bash)

Cloud networking

TLS/SSL knowledge

Education

CCNP certification or equivalent experience

Tools

Palo Alto

Cisco firewalls

F5 LTM/GTM/APM/ASM

Wireshark

TCPDump

VPN technologies

LDAP/OTP

VMware

Azure/AWS/Oracle Cloud

Job description

Core4ce is seeking an Enterprise Network Services Engineer to design, implement, and maintain secure and scalable enterprise network infrastructures.

The role requires deep knowledge of TCP/IP, encryption, routing, firewall management, load balancing, and automation, with responsibilities spanning design, deployment, troubleshooting, and compliance across multi-VRF Cisco environments and cloud integrations.