TS/SCI ISSO/ISSE - RMF & NIST 800-53 Expert

Constellation Technologies, Inc; Columbia (MD); On-site; USD 150,000 - 200,000; Full time

Benefits offered by this job

Affordable healthcare options

Dental insurance with employer paid

Vision with employer paid

Life insurance

Short-term and long-term disability

Training & memberships reimbursement

Tech training & accreditation access

401(k) with company match

Job summary

Constellation Technologies, Inc. is seeking a highly qualified information systems security engineer for DoD contracts. The role emphasizes defense‑in‑depth, enterprise security architecture, and RMF/NIST 800-53 control implementation.

Candidates should have a TS/SCI clearance with an active polygraph and meet DoD 8570 IAT Level I+ requirements, with extensive experience in security operations and SSP documentation. Multiple locations in MD/VA/COL locations are supported.

Qualifications

• Active TS/SCI clearance with polygraph is required.
• Experience as ISSO/ISSE focusing on defense-in-depth and enterprise security architecture.
• Knowledge of RMF and NIST 800-53 controls.
• DoD 8570 compliance with IAT Level I or higher.

Skills

Security engineering

Defense-in-Depth

RMF procedures

NIST 800-53

ISSO/ISSE experience

Security operations

Education

High School Diploma

DoD 8570 IAT Level I+

IASAE Level 2/3 (nice to have)

ISSEP/CISSP certifications (nice to have)

Tools

Nessus

NMAP

Wireshark

Job description

Constellation Technologies, Inc. is seeking a highly qualified information systems security engineer for DoD contracts. The role emphasizes defense‑in‑depth, enterprise security architecture, and RMF/NIST 800-53 control implementation.

Candidates should have a TS/SCI clearance with an active polygraph and meet DoD 8570 IAT Level I+ requirements, with extensive experience in security operations and SSP documentation. Multiple locations in MD/VA/COL locations are supported.