Senior Network Engineer

Centraprise, Corp.; Sunnyvale (CA); On-site; USD 120,000 - 190,000; Full time

Job summary

Centraprise, Corp. is seeking a highly experienced Senior Network Engineer to design, deploy, and secure our enterprise network infrastructure across global sites.

You will lead Layer 2/3 architectures, manage firewalls from Palo Alto to Fortinet, and implement Site-to-Site IPsec and client VPNs for distributed offices and remote users. This role acts as the primary architect and escalation point, coordinating with IT teams to deliver scalable, resilient connectivity and ongoing security

Qualifications

• Expertise in routing and switching (BGP, OSPF, VLANs).
• Experience with enterprise firewall platforms (Palo Alto, Fortinet, Cisco Firepower).
• Strong VPN technology knowledge.
• Experience with network troubleshooting and monitoring.
• Familiarity with data center networking and hardware deployment.
• Understanding of security hardening and vulnerability management.

Responsibilities

• Design, implement, and maintain Layer 2/3 network architectures.
• Administer enterprise firewalls and develop advanced security policies.
• Architect Site-to-Site IPsec VPNs and Client VPNs for offices and remote users.
• Lead deployment of routers, switches, and load balancers across sites.
• Serve as Tier-3 escalation; use packet capture tools (Wireshark) for root cause analysis.
• Perform firmware audits, upgrades, and vulnerability management.
• Collaborate with cross-functional IT teams to design scalable network solutions.
• Participate in architecture planning and long-term infrastructure strategy.

Skills

Routing & Switching

Enterprise firewall platforms

VPN technologies

Network troubleshooting

Data center networking

Security hardening

Tools

Wireshark

Job description

We are seeking a highly experienced Senior Network Engineer with strong expertise in enterprise network infrastructure and security. This role serves as the primary architect and administrator of the organization's physical and logical network environment. The ideal candidate will lead the design, deployment, and hardening of routing and firewall architectures while ensuring secure, scalable, and high-performance global connectivity.

Key Responsibilities

• Design, implement, and maintain complex Layer 2/Layer 3 network architectures, including management of global routing tables, prefix lists, and traffic engineering.
• Act as the primary administrator for enterprise firewalls (Palo Alto, Fortinet, Cisco Firepower), including development of advanced security policies, SSL inspection, and intrusion prevention tuning.
• Architect and support secure connectivity solutions such as Site-to-Site IPsec VPNs and Client VPNs for distributed office locations and remote users.
• Lead physical deployment and lifecycle management of routers, switches, and load balancers across data centers and enterprise sites.
• Serve as a Tier-3 escalation point for complex network issues, utilizing packet capture and flow analysis tools (e.g., Wireshark) for root cause analysis.
• Perform firmware audits, upgrades, and vulnerability management across network infrastructure to ensure compliance with security standards.
• Collaborate with cross-functional IT teams to design and implement scalable, resilient network solutions.
• Participate in architecture planning and long-term infrastructure strategy initiatives.

Technical Requirements

• Strong expertise in routing and switching technologies (BGP, OSPF, VLANs, MPLS preferred)
• Hands-on experience with enterprise firewall platforms (Palo Alto, Fortinet, Cisco Firepower)
• Deep knowledge of VPN technologies and network security best practices
• Experience with network troubleshooting and monitoring tools
• Familiarity with data center networking and hardware deployment
• Understanding of security hardening and vulnerability management