Senior Information Security Systems Engineer – Onsite, TS/SCI

Jobtome; Webster (NH); On-site; USD 93,000 - 172,000; Full time

Benefits offered by this job

Health insurance

Disability insurance

401(k) match

Flexible spending accounts

Education assistance

Parental leave

Paid time off

Company-paid holidays

Job summary

L3Harris Technologies is seeking an Information Security Systems Engineer to join a mission-focused team in Rochester, NY. The role emphasizes building and sustaining security solutions for National Security Systems using NIST RMF, CNNSI, JSIG, and FIPS frameworks.

You will collaborate with developers and vendors to ensure secure systems and ongoing accreditation. The ideal candidate has active TS/SCI clearance and DoD 8140 IASAE qualifications, with hands-on experience in SAST, CI/CD, and

Qualifications

• Bachelor’s or graduate degree with required years of experience, or equivalent experience.
• Active TS/SCI clearance is required.
• Experience with DoD/IC risk and security frameworks.

Responsibilities

• Define, design, implement and sustain security solutions for government and national security systems.
• Develop and maintain RMF documentation: SSPs, RMF artifacts, and security plans.
• Assess security controls, prepare mappings and baselines, and apply overlays.
• Perform SAST activities within a DevSecOps CI/CD pipeline and generate reports.
• Design security architectures and manage vulnerability/risk mitigation across environments.
• Support cloud and on‑premises deployments, including CMPs and security boundaries.

Skills

TS/SCI clearance

NIST RMF

SAST

CI/CD

Fortify/Coverity

GitLab

Encryption technology

Education

Bachelor’s Degree with 6+ years experience

Graduate Degree with 4+ years experience

10 years of related experience in lieu of a degree

Tools

Tenable Nessus

Splunk

Job description

L3Harris Technologies is seeking an Information Security Systems Engineer to join a mission-focused team in Rochester, NY. The role emphasizes building and sustaining security solutions for National Security Systems using NIST RMF, CNNSI, JSIG, and FIPS frameworks.

You will collaborate with developers and vendors to ensure secure systems and ongoing accreditation. The ideal candidate has active TS/SCI clearance and DoD 8140 IASAE qualifications, with hands-on experience in SAST, CI/CD, and