Senior ISSM – Multi-Domain Security Lead (Hybrid/Remote)

Aalyria; Washington; Hybrid; USD 180,000 - 260,000; Full time

Benefits offered by this job

Hybrid work model

Equity options

Competitive compensation and benefits

Job summary

Aalyria Technologies seeks an experienced Information Systems Security Manager to lead accreditation, operation, and sustained compliance of a multi-domain classified facility in Chantilly, VA. Hybrid/remote during design, transitioning to on-site after facility standup.

Primary interface with AOs, ISSOs, and program security; hands-on with ICD 503, RMF, TEMPEST/EMSEC, and A&A processes. Strong leadership and policy development required in a high-trust government environment.

Qualifications

• Active Top Secret clearance with SCI eligibility; must be in-scope and fully adjudicated at time of hire.
• 10+ years of progressive information security experience, with 5+ years in ISSM/ senior ISSO in IC/IC-adjacent environment.
• Experience with ICD 503 and IC-specific A&A processes; RMF experience
• Multi-domain classified network experience (JWICS, SIPRNet, NIPRNet) and accreditation differences
• Experience managing concurrent ATO/ATC for multiple systems across authorities
• Familiarity with TEMPEST/EMSEC and RED/BLACK separation requirements
• DoD 8140/8570 IAM Level III certification required at hire; CISSP/CISM accepted
• Experience developing SSPs, POA&M, and continuous monitoring docs
• Strong written and verbal communication; interface with senior government security personnel
• U.S. citizenship required

Responsibilities

• Lead A&A activities for multiple systems in accordance with ICD 503, RMF and IC directives.
• Develop, maintain SSPs, SARs, and ATO/ATC packages across enclaves.
• Coordinate pre-authorization with government AOs and track POA&M items to closure.
• Support SCIF accreditation activities and ICD 705 compliance with TEMPEST/EMSEC.
• Coordinate network connection approvals with government centers and authorities.
• Design and implement continuous monitoring programs; maintain configuration and vulnerability posture.
• Serve as ISSO during initial facility standup and transition duties to security team.
• Conduct regular security assessments, vulnerability scans, and remediation tracking.
• Lead incident detection, response, and after-action remediation with FSO coordination.
• Maintain system documentation, baselines, inventories and change records.

Skills

ISSM experience

A&A RMF

Multi-domain networks

Policy development

Stakeholder coordination

Incident response

Communication skills

Education

DoD 8140 / 8570 IAM Level III

CISSP/CISM or equivalent

Tools

TEMPEST/EMSEC

Job description

Aalyria Technologies seeks an experienced Information Systems Security Manager to lead accreditation, operation, and sustained compliance of a multi-domain classified facility in Chantilly, VA. Hybrid/remote during design, transitioning to on-site after facility standup.

Primary interface with AOs, ISSOs, and program security; hands-on with ICD 503, RMF, TEMPEST/EMSEC, and A&A processes. Strong leadership and policy development required in a high-trust government environment.