Network Security Engineer

Location: Edison, New Jersey, United States

Department: Solution Delivery

About the Role

The Network Security Engineer will join the US Solutions Delivery team, implementing and supporting enterprise firewall and network security solutions across customer environments. This is a hands-on, delivery-focused role centered on Cisco ASA and FTD platforms, and NGFW deployments. The engineer owns assigned workstreams end-to-end - from lab validation through production cutover — and works closely with architects, project managers, and customer stakeholders. The engineer should be US Citizen and willingness to travel is required. 

Key Responsibilities

Firewall Deployment & Operations 

• Implement and configure enterprise firewall and network security solutions (NGFW/FTD, VPNs, NAT, NAC/ISE, SASE) in alignment with approved designs 
• Manage and maintain firewall policies, including access rules, NAT, objects, zones, and security profiles following best practices 
• Perform testing and validation of firewall rules and security configurations in lab or staging environments before production deployment 

Migration & Troubleshooting 

• Support firewall migrations from Cisco ASA and third-party platforms to Cisco FTD 
• Troubleshoot and resolve firewall and network security issues, including traffic drops, NAT issues, VPN failures, and routing/DNS/DHCP dependencies 
• Identify and implement opportunities for optimization and automation, such as rule cleanup, standardization, and workflow improvements 

Execution & Coordination 

• Collaborate with architects, senior engineers, and project managers to ensure accurate and timely solution delivery 
• Participate in project sync-ups and technical discussions to understand requirements, scope, and deployment sequencing 
• Take ownership of assigned tasks end-to-end, including escalation, root cause analysis (RCA), and issue resolution 

Documentation & Continuous Improvement 

• Create and maintain comprehensive documentation, including firewall rules, network diagrams, VPN inventories, and operational runbooks 
• Stay current on firewall platforms, SASE, Zero Trust, and network security practices, applying new learnings to day-to-day delivery work 

Basic Qualifications

• Candidate should be a US citizen. 
• Bachelor’s degree in computer science, Information Technology, Cybersecurity, or related field 
• 4-7 years of experience in cybersecurity, with a strong focus on firewall design and implementation 
• 3+ years of hands-on experience designing and implementing Cisco ASA and Cisco FTD firewall environments or any third-party firewalls such as Palo Alto/Fortinet/Checkpoint experience with limited Cisco Firewall experience. 
• Proven expertise in troubleshooting firewall and VPN connectivity issues, including NAT, routing, and policy-related problems 
• Good understanding of NGFW features such as malware protection, threat detection, URL filtering, SSL decryption, and Intrusion Prevention Systems (IPS); hands-on experience preferred 
• Experience working with multi-instance firewall environments 
• Strong understanding of core networking concepts: TCP/IP, DNS, DHCP, subnetting, NAT, VPNs, and routing/switching fundamentals 
• Willingness to travel across the U.S. to support customer deployments and firewall rollouts. 

Preferred Qualifications

• CCNP Security certification or equivalent demonstrated expertise 
• Experience with Cisco Secure Access, Umbrella, or XDR platforms. 
• Knowledge of Zero trust/SASE implementations. 
• Knowledge of Cisco ISE for NAC/802.1X integration alongside firewall deployments 
• Experience with security automation and scripting (Python, Ansible, APIs) 
• CISSP, GIAC, or other industry-recognized security certifications 
• Familiarity with compliance frameworks (PCI-DSS, HIPAA, SOC 2, NIST) 
• Prior experience in a consulting, professional services, or partner-led delivery model 

Salary Range 

$80,000 - $120,000 USD + Benefits 

This is a full-time role with Gruve. Please note that Gruve does not provide visa sponsorship for this position; candidates must be U.S. citizens to apply. This is an on-site role based in Edison, New Jersey. 

 

 

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