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Tracking Code RDTE-20-1420-Z
Job Code 20-1420
Posting Title Senior Systems Administrator (Unix/Linux)
Post Date 9/15/2020
Full Time / Part-Time Full Time
Travel No Travel Required
City Dahlgren
State VA
Country US
Description Cisco FTD/Firepower (FMC) Firewall Engineer (RDTE-20-1420-Z):

Bowhead has an immediate opening for a Firewall Administrator (Network) to provide Design and Engineering Operation and Maintenance support for Firewall systems on the classified and unclassified Research, Development, Test and Evaluation (RDTE) networks at Dahlgren, VA. As the Firewall Administrator, you will design, implement and maintain support of the network and security infrastructure, use best practices and knowledge of current technologies and their potential application to the RDT and E Environment, and will assist in assessing the security risk of proposed Firewall modifications.

Essential Duties and Responsibilities:

• Manage firewall and network security systems by establishing and enforcing approved policies

• Analyze network security requirements and implement perimeter security changes

• Utilizing industry best practices for security, disaster recovery, business continuity, change control, the engineer will design, configure, manage and troubleshoot a variety of network firewall technologies

• Serve as a subject matter expert in coordinating and troubleshooting with customers, other infrastructure support activities and business units

• Develop network documentation of security infrastructure

• Monitor network performance and implement performance tuning as necessary

• Responsible for installing software, applying patches, managing file systems, and monitoring performance of Firewall systems

• Performs data backups and restoration of managed systems

• Assist in the certification and accreditation process for managed systems and networks

• Install and deploy of new Firewall hardware and software

• Review daily logs for managed systems and report on unusual activity

• Participate in the development and maintenance of Standard Operating Procedures (SOPs) associated with managed systems and applications

• Collaborate with IT staff on projects and initiatives

• Provide input for a monthly progress and status report
Requirements Qualifications:

• Firewall certifications: CCSA, CCSE, CCMSE, CCSM, PCNSE highly desirable

• Solid experience configuring and troubleshooting routing and switched infrastructure (e.g. CCNA, CCNP Security) and security certifications highly desirable

• Experience in network security including: Device Hardening and patching, IDS/IPS, SIEM, Firewalls, and vulnerability assessment and intrusion detection

• Experience with Next Generation and web application firewalls

• Understanding of controls (e.g. access control, auditing, authentication, encryption, integrity, physical security, and application security)

• Must be well versed in operating systems such as Linux as well VPN systems, encryption schemas and algorithms, various authorization and authentication mechanisms/software, network monitoring and sniffing, TCP/IP networks

• Experience in administering and troubleshooting firewalls within medium to large, complex organizations

• Experience with packet capture and analysis methodologies

• Firewall Administrator will provide technical support and troubleshooting of managed systems and networks

• Diagnose and resolve complex network problems and improve network performance and reliability

Job Requirements

• Prefer a Bachelor's degree or higher from an accredited college in a related discipline and prefer a minimum of ten (10) years of relevant experience or equivalent combination of education and experience

• Must currently hold a DoD 8570 Information Assurance Technical Level II certifications

• Position requires a strong understanding of Firewall functions and operations (proxy, proxy-arp, NAT, stateful packet inspection, circuit layer gateways, and application layer gateway)

• Experience with Next Generation and web application firewalls)

• Requires shell scripting experience and basic knowledge of various types of Operating Systems including Microsoft Windows, Linux and Unix and their network inter-communications

• Ideal candidate will have experience with TCP/IP protocols and the OSI model and how they apply to production systems and networks

• Intermediate to advanced level skills in Microsoft Office software suite - Word, Excel, Outlook, PowerPoint

• Ability to communicate effectively with all levels of employees and outside contacts

• Strong interpersonal skills and good judgment with the ability to work alone or as part of a team

Desired Skills:

• Firewall engineering background with Cisco FTD or McAfee firewalls

• Use of web application firewalls, SSL decryption, secure remote access, IDS/IPS technologies, High Availability / Redundancy configurations and network analysis tools

• IPv6 network and application implementations

• Familiarity with Department of Defense security guidelines and policies, highly desired

SECURITY CLEARANCE REQUIRED: Must currently hold a security clearance at the Top Secret level. US Citizenship is a requirement for this contract.

Applicants may be subject to a pre-employment drug & alcohol screening and/or random drug screen, and must follow UIC’s Non-DOT Drug & Alcohol Testing Program requirements. If the position requires, an applicant must pass a pre-employment criminal background history check. All post-secondary education listed on the applicant’s resume/application may be subject to verification.

Where driving may be required or where a rental car must be obtained for business travel purposes, applicants must have a valid driver license for this position and will be subject to verification. In addition, the applicant must pass an in-house, online, driving course to be authorized to drive for company purposes.

UIC is an equal opportunity employer. We evaluate qualified applicants without regard to race, age, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other protected characteristics EOE/AA/M/F/D/V. In furtherance, pursuant to The Alaska Native Claims Settlement Act 43 U.S.C. Sec. 1601 et seq., and federal contractual requirements, UIC and its subsidiaries may legally grant certain preference in employment opportunities to UIC Shareholders and their Descendants, based on the provisions contained within The Alaska Native Claims Settlement Act.

All candidates must apply online at, and submit a completed application for all positions they wish to be considered. Once the employment application has been completed and submitted, any changes to the application after submission may not be reviewed. Please contact a UIC HR Recruiter if you have made a significant change to your application. In accordance with the Americans with Disabilities Act of 1990 (ADA), persons unable to complete an online application should contact UIC Human Resources for assistance (

UIC Government Services (UICGS / Bowhead) provides innovative business solutions to federal and commercial customers in the areas of engineering, maintenance services, information technology, program support, logistics/base support, and procurement. Collectively, the fast-growing Bowhead Family of Companies offers a breadth of services which are performed with a focus on quality results. Headquartered in Alexandria, VA, we are a fast-growing, multi-million-dollar corporation recognized as one of the top 25 8(a) companies for government contracting.

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  • UIC and its Family of Companies is an equal opportunity employer. We evaluate qualified applicants without regard to race, age, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other protected characteristics EOE/AA/M/F/D/V.
  • Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities.
  • Please view Equal Employment Opportunity Posters provided by OFCCP here.
  • The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c)
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