Demo

Information Systems Security Engineer (ISSE) / Penetration Tester - FULLY CLEARED with POLYGRAPH REQUIRED

Constellation Technologies, Inc
Annapolis, MD Full Time
POSTED ON 5/12/2026
AVAILABLE BEFORE 11/7/2026
Risk Management Framework (RMF), NMAP, PKI, Wireshark, auditing, penetration testing, scripting, IASAE, CISSP, ISSEP, NISCAP

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

  • Must be a US Citizen
  • Must have TS/SCI clearance w/ active polygraph
  • Must have ten (10) years of experience with both ISSE and Penetration Testing, not just one or the other
  • Must have extensive, demonstrated knowledge of and experience with common security tools, such as Nessus, NMAP and Wireshark hardware/software security implementation, communication protocol, encryption techniques/tools, and web services
  • Must have in-depth understanding and extensive experience with security practices and policies and hands-on vulnerability testing using Tenable Nessus scanning products and/or NMAP (Network Mapper)
  • Must have experience with Defense in Depth Principals/technology, including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture, and applying risk assessment methodology to system development
  • Must have experience applying Risk Management Framework
  • Must have experience formulating and assessing IT security policy
  • Must have experience with secure configurations of commonly used desktop and server operating systems
  • Must have experience with penetration testing tools
  • Must have experience developing and implementing integrated security services management processes, such as assessing and auditing network penetration testing, anti-virus planning assistance, risk analysis, and incident response
  • Must have experience providing information assurance support for application development that includes system security certifications and project evaluations for firewalls that encompass system development, design, and implementation
  • Must be comfortable working on multiple systems and components simultaneously in various configurations
  • Must be able to effectively plan & prioritize tasking and communicate clearly regarding technical options and trade-offs
  • Must be capable of performing high quality work both independently and with a team in a fast-moving environment




These Qualifications Would be Nice to Have:


  • Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline
  • DoD 8570 compliance with IASAE Level 2 or 3
  • Information Systems Security Engineering Professional (ISSEP) Certification and/or Computer Information Systems Security Professional (CISSP) Certification
  • Experience with scripting languages
  • Candidates with certifications in the following areas are strongly preferred:
      • GIAC Web Applications Penetration Tester (GWAPT)
      • GIAC Penetration Tester (GPEN)
      • Certified Ethical Hacker (CEH)
      • Certified Information Security Manager (CISM)
      • Certified Web Application Defender (GWEB)
      • Certified Information System Security Professional (CISSP)








The benefits package:

  • Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA
  • Comprehensive Dental package
  • 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, AWS, and NetApp 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, California, 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 cti-staffing@cti-md.com 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 cti-hr@cti-md.com.

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 cti-staffing@cti-md.com 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 cti-hr@cti-md.com.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

The pay range for this job, with multi-levels, is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Salary : $140,000 - $265,000

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