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ISSE / ISSO - multiple levels - FULLY CLEARED with POLYGRAPH REQUIRED

Constellation Technologies, Inc · Columbia, MD; Annapolis Junction, MD; Fort Meade, MD; Hanover, MD; Laurel, MD

Extracted from the posting

Base
$85,000 – $270,000
Remote
Contract locations in MD, VA, CO, TX, UT, FL, HI
Visa
US citizenship required
Stack
Nessus, Nmap, Wireshark

ISSE/ISSO roles at multiple levels on a federal contract requiring US citizenship and TS/SCI with an active polygraph. Required experience ranges from six years (Level 01) to fifteen years (Level 04), with at least two years in the last five directly in ISSE/operations. Requires RMF, NIST 800-53 and STE/STN familiarity; listed tools include Nessus, NMAP and Wireshark.

Nessus, NMAP, Wireshark

Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.

Required:

  • Must have TS/SCI clearance w/ active polygraph
  • Must be a US Citizen
  • This position is open to multiple levels of years of experience; two (02) years within the last five (05) years must be directly related to Information Systems Security Engineering / Operations:
  • Minimum of High School Diploma
  • DoD 8570 compliance with IAT Level I or higher.​
  • Experience as an ISSO/ISSE with emphasis on Defense-in-Depth principles, network, and enterprise security architecture
  • Experience applying the principles of the NIST 800-53 including the procedures in the Risk Management Framework (RMF)
  • Familiarity with STE/STN requirements
  • Demonstrated knowledge of and experience with several of the following: current security tools; hardware/software security implementation; communication protocols; encryption techniques/tools.
  • Experience completing security evaluations of software systems or architectures to ensure they meet security requirements.
  • Experience preparing and maintaining SSPs and other security related documentation.
  • Experience proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies, preferably on a large software or IT program.
  • Demonstrated experience performing day-to-day security operations of large, complicated information and information processing systems.

These Qualifications Would be Nice to Have:

  • DoD 8570 compliance with IASAE Level 2 or 3
  • Information Systems Security Engineering Professional (ISSEP) Certification
  • Computer Information Systems Security Professional (CISSP) Certification
  • Ability to ensure the appropriate operational security posture is maintained for an information system
  • Support continuous monitoring of networks to detect and correct areas of security non-compliance, unmitigated vulnerabilities, and other risks
  • Perform regular audits of information systems
  • Assist the information systems security manager in preparing the information system for periodic reaccreditation

The benefits package:

• Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA

• Comprehensive Dental insurance

• Vision with 80% employer paid premium

• Employer paid Life insurance 100%

• Employer paid Short-term and Long-term disability 100%

• Annual training, continued education, and professional memberships reimbursement

• Unlimited access to Red Hat Enterprise Linux and AWS training and accreditation

• Annual reimbursement for technology i.e. phones, computers, printers, etc.

• 401(k) with company match up to 5% with 100% immediate vesting (after 90 days of employment)

The environment and perks:

• Professional development investment and paid time off for training

• Contract and work locations in Maryland, Virginia, Colorado, Texas, Utah, Florida and Hawaii.

• Team building events throughout the year such as Destination Family Events, Holiday Party, Monthly Get-Togethers

• Leadership Team engagement and mentorship

• Performance Recognition Program

• Complimentary branded apparel

Don't see a job opening that's the perfect fit? Apply to our General Position to join our talent pool for consideration for future opportunities.

Know someone else who may be a good fit? Refer them through the CTI External Referral Program and you could receive a one-time referral bonus of 

up to $10,000

! Email [email protected] for more information.

Constellation Technologies is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law. Job applicants can submit questions about CTI’s equal employment opportunity policy to [email protected].

Compensation: USD 85,000 – 270,000 per year salary

Technologies

NessusNmapWireshark
Constellation Technologies, Inc
Constellation Technologies, Inc

Job details

TypeFull-time
Work ModeOn-site
LevelSenior
Location🇺🇸Columbia, MD🇺🇸Annapolis Junction, MD🇺🇸Fort Meade, MD🇺🇸Hanover, MD🇺🇸Laurel, MD
Salary$85,000 - $270,000
PostedNov 06, 2026
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