Senior Network Security Engineer – Cisco/Palo Alto

Location: Waltham, MA – 2 days/week- Locals only

F2F interview is required

Exp Level: 13+ years 

Need recent experience working in the life sciences / biotech / pharmaceutical industry.

Job description: 

Seeking a Senior Network Engineer to design, implement, and maintain the network infrastructure. In this role, you will be responsible for the full lifecycle of our network environment — from firewall configuration and routing to switching and virtualized network security. This is a hands-on position requiring deep expertise in enterprise networking, with a strong emphasis on Palo Alto and Cisco technologies.

Key Responsibilities

• Design, configure, and maintain enterprise network infrastructure including firewalls, routers, and switches
• Manage and optimize Palo Alto Networks firewall environments, including policy creation, threat prevention, and VPN configurations
• Administer Cisco routing and switching infrastructure (LAN/WAN, VLANs, inter-VLAN routing)
• Implement and maintain VMware-based firewall and network virtualization solutions
• Monitor network performance, troubleshoot connectivity issues, and resolve incidents in a timely manner
• Collaborate with IT and security teams to ensure network architecture aligns with business and compliance requirements
• Document network configurations, changes, and standard operating procedures
• Participate in network design reviews and capacity planning

Required Qualifications

• 5+ years of experience in enterprise network engineering
• Hands-on expertise with Palo Alto Networks firewalls (configuration, management, and troubleshooting)
• Strong experience with Cisco routing and switching technologies
• Experience with VMware firewall / network virtualization
• Solid understanding of routing protocols (e.g., BGP, OSPF) and network topology design
• Ability to work onsite in the Waltham, MA area as needed

Required Certifications

• Cisco CCNP or equivalent demonstrated expertise in routing and switching

Preferred Qualifications

• Experience working in the life sciences / biotech / pharmaceutical industry
• Familiarity with network security frameworks and compliance standards relevant to life sciences (e.g., HIPAA, GxP)

Preferred Certifications

• Palo Alto Networks Certified Network Security Engineer (PCNSE)
• Cisco CCIE (Routing & Switching or Enterprise Infrastructure)
• VMware Certified Professional (VCP) — specifically in network virtualization or security