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Firewall Network Engineer

Job Duties and Responsibilities

ManTech is seeking a Senior Network Engineer to provide support and to operate network and security components which include routers, switches, firewalls, load balancers, wireless devices, data centers, and cloud services in both a greenfield and brownfield infrastructure. The successful candidate will support multiple networks that operate 24 hours a day 365 days a year requiring 99.99995% uptime. Normal business hours are between 6 a.m. and 6 p.m. Eastern Time. Daily duties include managing the USCIS network and security devices which include and are not limited to the following:

· Cisco ASA

· Cisco Security Manger

· Cisco routers/switches/firewalls

· IPS/IDS modules

· Cisco ISE

· Amazon Cloud

· Data center infrastructure

· Network Enclaves

· Xceedium Gatekeeper

· Riverbed

· Solarwinds

· Cisco Prime

· McAfee

· HP Fortify

· HIDS

· Two Factor Authentication

· Identity and Biometric tools

· Bluecoats

 

Duties:

· Troubleshooting Tier 3 & 4 level issues for LAN / WAN networks

· Troubleshooting Enclaves

· Working on Change Requests, Incidents, Work Orders

· Resolving Emergency Break Fix problems

· Ability to work in ServiceNow and use this tool effectively to work

· Understanding the work flows to expedite and provide operations support

· Collaborate with multiple teams for resolving issues

· Maintain documentation for all network infrastructure changes and process flows

o    Document all processes and procedures

o    Post documents to EID SharePoint site

· Serve as the technical expert for network infrastructure, security tools, appliances and services

· Collaborate with Network Architecture & Engineering teams to recommend solid well thought out solutions

· Responsible for mentoring junior staff and expanding their skill set

· Responsible for leading CIRT calls and outage resolutions

 

Qualifications:

· Expertise in one or more of the following tools and technologies:

o    Cisco Network and Security Technologies

o    Cisco Wireless Technologies

o    Amazon Cloud Services

o    Cisco Data Center Technologies

o    Riverbed Technology

o    Performance Engineering tools and technologies

· Experience serving as an escalation point for network and performance issues and ensuring their resolution

· Experience analyzing and resolving tickets with limited internal/external support

· Strong ability to operate as member of a multi-functional team

· Ability to multi-task and keep track of work

· Must be an expert on subnet masking and IP addressing

· Must understand multi-tier networks and have proven ability to resolve issues

· Must have excellent written and verbal skills in English

· Must have self-motivation and initiative to tackle large problems from start to finish

· Must have excellent time management skills to work in a fast-paced professional environment

· Must have the ability to design solutions that are not cookie cutter

· Must have project management and time management skills

· Must know Visio diagramming and Microsoft office tools suite

· Must be able to work independently and within a matrixed organization

· Must have networking expertise and drive work to closure

· Must have excellent customer service skills and high threshold for stress

· Must want to be in an Operations environment

· Ability to follow directions from management

· Availability to work outside of normal business hours to support a production network

· Must be available to be on call many weeks throughout the year

· Must have excellent team work and collaborations skills

· Ability to maintain composure in a fast paced, high stress, demanding environment

· Current USCIS EOD highly desired

· Experience operating in a DevOps environment for at least twelve months highly desirable

 

Other:

Clearance Requirements – US Citizen with the ability to obtain Public Trust and complete DHS Security Clearance; Ability to obtain DHS EOD suitability or Current DHS EOD preferred.

Location – Bethesda, MD; Stennis, MS

Qualifications

Requires Bachelor’s degree in (Computer Science, Math or Engineering) or equivalent, and five to seven years of related experience.

Degrees

Equivalent Experience/Education
Bachelor's Degree

Years of Experience

11-13 years w/High School Diploma
05-07 years w/Bachelors Degree
02-04 years w/Masters Degree
Company Name:
Security Clearance:
DHS
Location:
Bethesda, Maryland
Country:
United States
Salary:
Not Specified
Job Number:




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