Security Engineering Architect Lead RMF/Cloud

Leidos LLC; Brookmont (MD); Hybrid; USD 154,000 - 278,000; Full time

Job summary

Leidos is seeking a Security Engineer Architect Lead to guide security across cloud and on‑prem environments, leading RMF/ATO efforts and cross‑team collaboration in a fast‑paced setting.

The role emphasizes strong leadership, security policy development, and incident response within a DoD/IC context, with on‑site work in Bethesda, MD and flexible remote options based on client needs.

Qualifications

• BS degree and 15+ years of relevant experience or Master’s with 12+ years of relevant experience.
• Active TS/SCI clearance with ability to obtain/maintain a Polygraph.
• Prefer DoD 8570.01-M IASAE Level II certs: CISSP, CISSP-ISSAP, CISSP-ISSEP, CSSLP, or CASP+ CE (CISSP Associate not acceptable).
• Familiarity with NIST SP 800-27/30/37/53/60 and CNSS 1253 all essential.
• Experience with RMF/ATO for DoD/IC systems, incident response, POA&Ms, and vulnerability management.
• Experience building SSE programs to integrate security/privacy controls into complex systems.
• Experience leading a team of CSEs/ISSOs; strong cross-team collaboration.

Responsibilities

• Provide security engineering leadership across cloud and on‑prem environments.
• Lead RMF/ATO processes and interface with DIA CIO and NDOC Security POCs.
• Create and enforce security policies; perform OS hardening and patch guidance per DISA STIGs and NIST.
• Direct team priorities, deliverables, and milestones; support product ownership for Security Team.
• Collaborate across program management and engineers to deliver secure, compliant solutions.
• Analyze incidents and recommend remediation; facilitate cross-domain security engineering.

Skills

TS/SCI clearance

Security Architect

RMF/ATO experience

Agile/SAFe

Team leadership

Incident response

DISA STIGs / NIST

Jira & Confluence

Kubernetes/Rancher

PKI / VPN / VPC

CISSP or equivalent certs

Education

BS degree

Master's degree

Tools

Tenable Security Center

Jira

Confluence

CNSSI 1253

CNSS 1253

NIST SP 800-series

Linux / Windows

Active Directory

Elasticsearch

Jenkins/Gitlab CI/CD

OIDC/OAuth2

Job description

Leidos is seeking a Security Engineer Architect Lead to guide security across cloud and on‑prem environments, leading RMF/ATO efforts and cross‑team collaboration in a fast‑paced setting.

The role emphasizes strong leadership, security policy development, and incident response within a DoD/IC context, with on‑site work in Bethesda, MD and flexible remote options based on client needs.