Senior Information Systems Security Officer - ISSO

Two Six Technologies•Herndon, VA

3d•Onsite

About The Position

Two Six Technologies is seeking a full-time Senior Information Systems Security Officer (ISSO) for its Corporate team. The ISSO will assist the Information System Security Manager (ISSM) with compliance for assigned classified programs and support the development, architecture, accreditation, and ongoing compliance of classified information systems. The role is based in the Herndon, Virginia office, with potential local travel to other company sites. The position works with Windows 10/11, Active Directory/Group Policy, Red Hat Enterprise Linux (RHEL), Ubuntu Linux, and VMware vSphere/ESXi environments. The ISSO serves as an information security liaison among the program, customer, and security team and advises the ISSM throughout the Risk Management Framework (RMF) process. The role requires experience in the Intelligence Community, including familiarity with ICD 503 requirements and NIST 800-53 controls. The successful candidate will work collaboratively and independently, with attention to detail, analytical and problem-solving abilities, and strong communication skills.

Requirements

At least 5 years of experience working in a classified environment as an ISSO.
A bachelor's degree in Cybersecurity, Computer Science, Information Security, or a related field; advanced professional industry certifications may be substituted.
An 8140 certification, such as Security+, GCISP, GSEC, SSCP, CASP+, CISM, or CISSP.
Working knowledge of tools such as Splunk, SNOW (ServiceNow), and Talon.
Working knowledge of government regulations and guidance, including DAAPM, JSIG, NIST SP 800-53, and NIST SP 800-171.
Advanced understanding of security compliance matrices.
Active TS/SCI clearance with eligibility for Poly.
Experience working within the Intelligence Community and with ICD 503 requirements and NIST 800-53 controls.

Nice To Haves

Operating system certifications such as LPIC, Linux+, RHCSA, or Microsoft Administrator certifications.
Working experience primarily in Windows environments and some experience with Linux environments.

Responsibilities

Work with the Corporate ISSM and CSO to build, architect, and accredit classified information systems.
Achieve accreditation and maintain compliance for the Herndon program.
Serve as the information security liaison between the program, customer, and security team.
Advise the ISSM and contribute to the Risk Management Framework (RMF) process.
Complete STIG checklists and POA&Ms as required.
Review all data transfers to information systems.
Perform weekly, bi-weekly, and monthly audits for assigned accredited systems.
Conduct continuous monitoring activities as required by customer requirements.
Create new policies and maintain existing policies.