View Our Website View All Jobs

Sr. Network Security Engineer


The Sr. Network Security Engineer is responsible for configuration and maintenance of  the complex secure network system in support of the US Department of Commerce. Provide security engineering, analysis, analyze Enterprise application and email systems, LAN and WAN systems, including planning, designing, evaluating, and implementing counter measures.  The worksite is at Department of Commerce , 1401 Constitution Ave., Washington, DC. This is an immediate need!


  • Provide weekly statistics to upper management
  • Develop and implement Standard Operating Procedures (SOPs) for the NOC.
  • Provide management with correlation analysis of logs produced by the various network security and network filtering system logs.
  • Administer Linux and open source systems.
  • Maintain the BIND DNS/DNSSEC systems.
  • Install, integrate, and manage outbound and inbound TCP/IP packet inspection systems
  • Install, configure and administer intrusion detection systems (IDS)
  • Install, configure and manage firewall and packet filtering systems
  • Provide immediate response to network security alerts from the CIRT or network monitoring systems
  • Provide daily, weekly and monthly reports as required by management on breaches in security and overall network security posture.
  • Apply patches and remediations to assigned network security systems within the timeframe specified by the service level agreement
  • Install, configure and administer two-factor authentication solutions i.e. RSA SecurID, TACACS, & RADIUS
  • Administer AnyConnect & WebVPN services
  • Make security enhancement recommendations to management
  • Work closely with Data teams to maintain and enhance LAN & WAN infrastructure.
  • Provide Tier3 support in troubleshooting of the network related issues and problems.
  • Lead and coordinate troubleshooting as required
  • Resolve and close tickets in accordance with NOC SLAs
  • Ensure that the network and its components are patched with the latest software version, security updates, and hotfixes.
  • Cross-train and mentor other NOC engineers to improve coverage and team performance
  • On-call rotation duty. Required to respond 24x7 when assigned on-call duty
  • Conduct after hours maintenance and troubleshooting as required
  • Other duties as required


  • High personal credibility and integrity
  • Excellent customer service skills and understanding of ITIL
  • Strong communication skills, both written and verbal
  • Must have the ability to communicate technical and security-related concepts to a broad range of technical and non-technical staff and management.
  • Proven ability to multitask, prioritize and remain cool under pressure
  • Team player and self-starter
  • Strong analytical skills (i.e., technical and non-technical problem-solving skills).
  • 5 years of experience in designing, implementing, and troubleshooting of complex networks
  • 5 years of experience with Cisco Works and Cisco Prime Infrastructure
  • 5 years of SolarWinds Monitoring Tools - NPM
  • 5 years of project or operational experience in a complex network environment
  • 5 years of experience in design, implementation, configuration, and troubleshooting of Cisco switches and routers
  • 5 years of experience with Cisco ASA firewalls, RSA Secur ID System and tokens and SSL/VPN in Cisco ASA
  • 5 years of experience in maintaining and managing DNS
  • 5 years of experience with Lunix Administration
  • Thorough understanding of EIGRP and BGP
  • Thorough understanding of Network Architecture concepts and best practices
  • Proficiency with MS Office
  • MUST have one of the following Certs.:  CCNA, CCNP, or  Security+ Certification
  • Must be a US Citizen or a Green Card holder who has lived in the US for 3 years or longer
  • Active Public Trust Clearance is a plus


  • BS in Computer Science, Computer Engineering, Information Technology, Management Information Systems, Cyber Security or similar field. Relative experience in these fields and additional specialized certifications can also be considered as an option.


~n-Link is an equal opportunity employer and does not discriminate against otherwise qualified applicants on the basis of race, color, creed, ancestry, religion, orientation, age, sex, marital status, national origin, disability, genetic information, handicap or veteran status. ~Section 508 Disclaimer: n-Link is committed to ensuring that our Career Portal Site is accessible to the widest possible audience. We are continually improving accessibility by following all recommended guidelines outlined in Section 508 of the Rehabilitation Act Amendments of 1998. If you or someone else, needs assistance in applying to one of our advertised positions, please contact someone from our Human Resources Team for assistance. Please describe the nature of the problem and the section where the difficulty was encountered. We will do our best to provide you with the information you require so that you are able to apply to the position. We can be contacted via email or by calling (541) 362-6192. Thank you!~

Read More

Apply for this position

Apply with Indeed
Attach resume as .pdf, .doc, or .docx (limit 2MB) or Paste resume

Paste your resume here or Attach resume file

To comply with government Equal Employment Opportunity / Affirmative Action reporting regulations, we are requesting (but NOT requiring) that you enter this personal data. This information will not be used in connection with any employment decisions, and will be used solely as permitted by state and federal law. Your voluntary cooperation would be appreciated. Learn more.

Invitation for Job Applicants to Self-Identify as a U.S. Veteran
  • A “disabled veteran” is one of the following:
    • a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or
    • a person who was discharged or released from active duty because of a service-connected disability.
  • A “recently separated veteran” means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
  • An “active duty wartime or campaign badge veteran” means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
  • An “Armed forces service medal veteran” means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.
Veteran status

Voluntary Self-Identification of Disability
Voluntary Self-Identification of Disability Form CC-305
OMB Control Number 1250-0005
Expires 1/31/2020
Why are you being asked to complete this form?

Because we do business with the government, we must reach out to, hire, and provide equal opportunity to qualified people with disabilities.i To help us measure how well we are doing, we are asking you to tell us if you have a disability or if you ever had a disability. Completing this form is voluntary, but we hope that you will choose to fill it out. If you are applying for a job, any answer you give will be kept private and will not be used against you in any way.

If you already work for us, your answer will not be used against you in any way. Because a person may become disabled at any time, we are required to ask all of our employees to update their information every five years. You may voluntarily self-identify as having a disability on this form without fear of any punishment because you did not identify as having a disability earlier.

How do I know if I have a disability?

You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Disabilities include, but are not limited to:

  • Blindness
  • Deafness
  • Cancer
  • Diabetes
  • Epilepsy
  • Autism
  • Cerebral palsy
  • Schizophrenia
  • Muscular dystrophy
  • Bipolar disorder
  • Major depression
  • Multiple sclerosis (MS)
  • Missing limbs or partially missing limbs
  • Post-traumatic stress disorder (PTSD)
  • Obsessive compulsive disorder
  • Impairments requiring the use of a wheelchair
  • Intellectual disability (previously called mental retardation)
Please check one of the boxes below:

You must enter your name and date
Your Name Today's Date
Reasonable Accommodation Notice

Federal law requires employers to provide reasonable accommodation to qualified individuals with disabilities. Please tell us if you require a reasonable accommodation to apply for a job or to perform your job. Examples of reasonable accommodation include making a change to the application process or work procedures, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.

iSection 503 of the Rehabilitation Act of 1973, as amended. For more information about this form or the equal employment obligations of Federal contractors, visit the U.S. Department of Labor's Office of Federal Contract Compliance Programs (OFCCP) website at

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

Human Check*