Network Systems Engineer

6 days ago


Laurel, Maryland, United States ManTech Full time
Job Summary

We are seeking a highly skilled Network Systems Engineer to join our team at ManTech International. As a key member of our organization, you will be responsible for designing, implementing, and maintaining secure network systems to support our national security initiatives.

Key Responsibilities
  • Configure and troubleshoot Cisco ASR routers, including HSRP, OSPF, BGP, and route-map;
  • Configure and troubleshoot Cisco ASA firewalls;
  • Troubleshoot various DNS, SMTP, IP routing, latency, and connectivity issues;
  • Implement TCP/IP and related services, including DHCP and DNS;
  • Install and upgrade Cisco Switches and Firewalls (ASA) IOS using TFTP;
  • Maintain all LAN/WAN connectivity and document network problems and resolution for future reference;
  • Oversee software and network security;
  • Use Linux network troubleshooting tools to solve complex network issues, including tcpdump, ssldump, curl, wget, mtr, tcp traceroute, nmap, openssl, and tshark.
Requirements
  • TS/SCI with polygraph clearance;
  • High school diploma with twenty (20) years of relevant experience;
  • Associates degree with fifteen (15) years of relevant experience or bachelor's degree with twelve (12) years of relevant experience;
  • Provide support for customer networks involving cross-domain solutions, including VPNs, one-way data transfers, unclassified mission-related infrastructures, and Taclane 175 encryption devices;
  • Configure and troubleshoot Cisco Catalyst switches, including Spanning Tree, Port Security, VTP, Ether channels, and VLANs;
  • Configure and troubleshoot Cisco ASR routers, including HSRP, OSPF, BGP, and route-map;
  • Configure and troubleshoot Cisco ASA firewalls;
  • Troubleshoot various DNS, SMTP, IP routing, latency, and connectivity issues;
  • Implement TCP/IP and related services, including DHCP and DNS;
  • Install and upgrade Cisco Switches and Firewalls (ASA) IOS using TFTP;
  • Maintain all LAN/WAN connectivity and document network problems and resolution for future reference;
  • Oversee software and network security;
  • Use Linux network troubleshooting tools to solve complex network issues, including tcpdump, ssldump, curl, wget, mtr, tcp traceroute, nmap, openssl, and tshark.
Clearance Requirements
  • TS/SCI with polygraph clearance;
Physical Requirements
  • Bending, carrying, kneeling, lifting, light work up to 20 lbs., reaching, repetitive motions, sedentary work, walking, working with data, ability to handle stress and work under pressure, ability to use MS Office, ability to use a PC, analytical or critical thinking skills, interpersonal and people skills, leadership skills, listening skills, multi-tasking ability, oral and written communication skills, organizational skills.


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