Previous Job
Network Security EngineerVPN L3
Ref No.: 21-00190
Location: Houston, Texas
  • Candidate must be good with Palo Alto, Cisco firewalls and Multi-Domain Security Management
  • Expertise in Site-to-Site VPN for all platform- Cisco ASA, Firepower, Palo Alto, VPN Concentrator, etc.
  • Experience should include security policy development, security education, Network Penetration testing, Application vulnerability assessments, risk analysis and compliance testing.
  • Knowledge of IT Security technologies, Operating Systems, Database, routing and switching, and endpoint security solutions
  • Knowledge of information security standards (e.g., ISO 17799/27002), rules and regulations related to information security and data confidentially (e.g., FERPA) and desktop, server, Application, database, Network security principals for risk identification and analysis.
  • Exposed to best practice design & Implementation methodology
  • Identifies ,isolates and resolves network security problems
  • Experience with Problem and Change Management processes and applications.
  • Excellent written and verbal communication skills. Technical Certification are advantage
  • Excellent leadership skills and teamwork skills. Results oriented, high energy, self-motivated.
  • Palo Alto policy management (making changes to the ACLs, Objects, policies)
  • ASA policy management (making changes to the ACLs, Objects, policies)
  • Exposure to Palo Alto & Cisco Firewall products.


  • Certifications in IT Security will be preferred (CISCO CCIE security)
  • Certification like CISSP will be an added advantage

Areas of Responsibility:

  • Validating the initial request and finding the basic information(ex: IP Addresses, Port number, Application owners, contact details)
  • Scheduling call for gathering Peer IP, NAT IP, Real IP (IP involved in the encryption domain), Protocols and Service Port information for building tunnel
  • Filling up the information / details received on the VPN form and collecting the BAA / other standard security documents (if needed)
  • Coordinating with Network operations team related to routing the NAT IP, vendor end IP/s which are involved in the tunnel.
  • Preparing the scripts/config to building the tunnel.
  • Raising CRQ and following up of approvals from change managers, Perimeter Governance team, Site leadership, Application Owners and Change Management team
  • Implementing the tunnel change on the firewall along with Network data team for routing the vendor NAT IPS on CSH side.
  • Scheduling call with vendor and requester for troubleshooting the connectivity related issues between the tunnel peers.
  • Involving CSH and vendor side Application team, Server team along with vendor end technical person (Network / Security).
  • Hypercare support, validation calls & Closure