Information Systems Security Engineer (ISSE) / (DAO3) - FULLY CLEARED with POLYGRAPH REQUIRED

Constellation Technologies, Inc. is supporting a federal effort in which information systems security engineering capabilities are essential for protecting mission environments from design through authorization and ongoing testing. This onsite role in Linthicum Heights, MD requires a cleared professional with an active TS/SCI clearance and polygraph, aligned to security engineering and risk management expectations for complex systems.

The Information Systems Security Engineer (ISSE) (DAO3) role focuses on applying security design processes, guiding security authorization activities, and supporting engineering life cycle work for systems that must address risk, defense-in-depth, and cross-domain considerations.

Key Responsibilities

• Apply knowledge of the system security design process and support security engineering across the Engineering Life Cycle.
• Support risk management activities, including intrusion detection, contingency planning, and incident handling.
• Contribute to activities tied to security authorization, including related auditing and security testing.
• Support configuration control and change management for governed system environments.
• Address security requirements spanning information domains and cross-domain solutions, including controlled interfaces.
• Integrate and evaluate identification, authentication and authorization capabilities within system solutions.
• Support system integration activities in alignment with security expectations.
• Demonstrate knowledge of ICD 503 (formerly NISCAP).
• Align solutions with core cybersecurity principles including confidentiality, integrity, non-repudiation, availability, and access control.

Required Qualifications

• US Citizenship is required.
• Active TS/SCI clearance with polygraph is required.
• Bachelor's Degree in Computer Science or IT Engineering is required. In lieu of a Bachelor's degree, an additional four (04) years of experience is required for a total of .
• 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.
• IAM 3 certification is required.

Technologies / Skills

• BASH, Linux, Perl, Python, Java
• ETL, Cassandra
• Agile
• IAM 3 certification

Compensation

Compensation range: USD 206 - 255 per yearly.

Benefits

• 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 (phones, computers, printers, etc.)
• 401(k) with company match up to 5% with 100% immediate vesting (after 90 days of employment)

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 including Destination Family Events, Holiday Party, and Monthly Get-Togethers
• Leadership Team engagement and mentorship
• Performance Recognition Program
• Complimentary branded apparel