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Senior Network Engineer

Philadelphia, PA
We are looking for a Senior Network Engineer that will be responsible for the design, configuration and administration of firewalls and load-balancers throughout the enterprise.  The successful candidate will be proficient in the conceptual and strategic operation of security and load-balancing components including hands-on configuration of firewalls in routed and transparent modes; transparent proxies in relation to their firewall policies; and load-balancers in local and global configurations.  This position requires an elevated attention to detail, process, and discipline within a production financial environment.
  • Implements and maintains firewall policies, including IPS and transparent proxy profiles, to supplement new technologies and project initiatives in conjunction with the Server, Development and Information Security teams.  
  • Implements and maintains load-balancers and their associated algorithms within and across a multi-datacenter infrastructure, to supplement application growth and redundancy in conjunction with the Server and Development teams.
  • Compose and maintain firewall policies, including IPS and proxy profiles, through strong analytical, communication and problem-solving skills.
  • Defines firewall objects, group objects and rules in a structured and efficient manner.  
  • Composes connectivity designs to satisfy project /task requirements utilizing proven, best-practice technologies and solutions.
  • Performs implementation and troubleshooting of the security architecture to address identified deficiencies and enhance the company's strategic direction.
  • Responds to issue escalations and service interruptions as a confident technical team-member.  
  • Completes tasks in accordance to best practices and in compliance with security and corporate guidelines.
  • Ensures responsibilities are carried out accurately and in a timely basis.
  • Manages multiple priorities effectively.  
  • Prepares technical subject matter presentations suitable for management.
  • Maintains effective relationships with vendors, consultants and coworkers.   
  • Evaluates emerging technologies and product platforms with regards to business drivers, infrastructure performance and scalability assessments.
  • Strong understanding of proxies and their foundation technologies including SSL Inspection, Web Filtering and Application Control, at an advanced level.
  • SSL/TLS security including certificate inspection, deep packet inspection and certificate management.
  • Strong understanding of firewall logic including Network / Port Address Translations (NAT / PAT); Site-to-Site VPNs and remote-access VPNs.
  • Layer 2 and Layer 3 networking design and implementation.
  • Thorough knowledge of TCP/IP addressing and sub-netting.
  • Packet capture and analysis
  • Exceptional technical documentation skills
  • Excellent communication and interpersonal skills.
  • Experience with current best practices in IT standards, principles, and security practices.
  • After-hours (evenings and weekends) work will be required, as needed
Required skills/competencies:
  • Hands-on experience with the following platforms/feature-sets:
    • FortiNet, and Cisco firewall platforms within the GUI and CLI  levels. 
    • F5 Local and Global Traffic Managers, including iRules configurations.  
  • Basic understanding of layer 3 protocols, such as HSRP, ARP, EIGRP, OSPF, and BGP.
  • Basic comprehension of layer 2 technologies including (Rapid) Spanning Tree Protocol and LACP.  
  • Logging aggregation and reporting via SNMP and SYSLOG.
Preferred education/experience:
  • Bachelors degree in Computer Science, Information Systems, or related technical studies.

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