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Information Systems Security Engineer (ISSE) / (DAO3) - FULLY CL with Security Clearance

Constellation Technologies, IncLinthicum Heights, MD🇺🇸United StatesPosted Oct 14, 2026

Quick Overview

Salary
$10k/yr
Seniority
Mid Senior
Employment type
Employee
Work mode
On Site
Location
Linthicum Heights, MD, United States
Posted
23 hours ago
AWSETLAgileBashCassandraJavaPerlPython

Job Description

Information Systems Security Engineer (ISSE) / (DAO3)

  • FULLY CLEARED with POLYGRAPH REQUIRED Linthicum Heights, MD Software, Systems & Networks Support – SUP20 - Security Support / Systems Security Personnel / On-site apply for this job BASH, Linux, Perl, Python, Java, ETL, Cassandra, Agile, IAM Level 3 certification  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
  • Bachelor's Degree in Computer Science or IT Engineering. In lieu of a Bachelor's degree, an additional four (04) years of experience for a total of twelve (12) years.
  • Eight (08) years of experience as an IT Risk Assessor, System Security Engineer, Information Systems Security Manager or DAO in programs and contracts of similar scope, type and complexity is required.
  • Required knowledge of: * system security design process * defense-in­ depth/breadth
  • Engineering Life Cycle * information domains and cross-domain solutions * controlled interfaces * identification, authentication and authorization * system integration
  • ICD 503 (formerly NISCAP) * risk management, intrusion detection, contingency planning, incident handling * configuration control, change management * auditing, security authorization process, principles of Cybersecurity (confidentiality, integrity, non-repudiation, availability, access control), and security testing
  • IAM Level 3 certification is required $206 - $255 a year 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. 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  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 . We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. 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. apply for this job Constellation Technologies, Inc Home Page
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