Senior Information System Security Engineer (ISSE) — TS/SCI

Acclaim Technical Services; Chantilly (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Acclaim Technical Services in Chantilly, VA seeks an Information System Security Engineer (ISSE) to support cyber operations and A&A activities for federal programs. The role requires TS/SCI with polygraph and hands-on experience in securing complex IT architectures.

You will design security controls, run system vulnerability scans, review documentation, and collaborate with ISSMs to implement IA across networking, cloud, and enclave environments.

Qualifications

• Prior ISSE and Network Engineering experience on a technical communication or intelligence collection program.
• Bachelor's Degree + 8 years.
• TS/SCI with polygraph.

Responsibilities

• Design and embed security controls into system architectures.
• Ensure scans for all systems are run on a routine basis and patch vulnerabilities and policy failures.
• A&A - review and complete required technical documentation (Accounts Management Plan, SOPs, etc.).
• Understand of computer architecture, networking, operating systems, and network security.
• Work with ISSMs to resolve issues.
• Develop, implement, and/or integrate Information Assurance (IA) and security systems for networking, computing, virtualization, cloud, and enclave environments.
• Review and conduct technical security assessments to identify vulnerabilities and non-compliance and recommend mitigations.
• Create and review A&A Body of Evidence documentation and provide feedback on completeness and compliance.
• Advise and assist with Lifecycle A&A process.
• Maintain documentation and change control per sponsor guidelines.
• Enforce secure interfaces among external systems and architectures.
• Utilize COTS/GOTS and custom tools to scan, identify, contain, mitigate threats.
• Protect information and systems from unauthorized access, use, and disclosure.
• Recognize intrusion attempts through analysis of event details.

Skills

Cybersecurity

Information Assurance

Security architecture

Education

Bachelor's Degree + 8 years

TS/SCI with polygraph

Job description

Acclaim Technical Services in Chantilly, VA seeks an Information System Security Engineer (ISSE) to support cyber operations and A&A activities for federal programs. The role requires TS/SCI with polygraph and hands-on experience in securing complex IT architectures.

You will design security controls, run system vulnerability scans, review documentation, and collaborate with ISSMs to implement IA across networking, cloud, and enclave environments.