Senior ISSO & Cloud Security Architect (TS/SCI)

Guidehouse; Springfield (VA); On-site; USD 113,000 - 188,000; Full time

Benefits offered by this job

Health Insurance

401(k) Retirement Plan

Tuition Reimbursement

Job summary

Guidehouse is seeking an Information Security Systems Officer to support a major federal initiative. The role guides system owners and security teams through RMF, ATO, and continuous monitoring in hybrid cloud and on‑prem environments.

You will lead secure cloud design across AWS, Azure, and on‑prem, implement NIST controls, and mentor junior ISSEs while ensuring agency governance and compliance. Strong communication with stakeholders is essential.

Qualifications

• Minimum five years in cybersecurity or secure systems engineering with cloud experience.
• Active TS/SCI clearance with polygraph (CI or FS) required.
• Experience implementing NIST RMF and 800-53 controls across cloud/on‑prem environments.

Responsibilities

• Lead design of secure cloud architectures (AWS, Azure, hybrid).
• Implement and validate NIST controls and cloud security services.
• Mentor junior staff and guide DevSecOps teams on secure CI/CD and IaC.

Skills

Cloud architecture

RMF

NIST 800-53

Security governance

Cross-functional leadership

Education

Bachelor’s degree

Active TS/SCI with polygraph

Master’s degree (preferred)

Tools

Splunk

Nessus

CrowdStrike

ACAS

Job description

Guidehouse is seeking an Information Security Systems Officer to support a major federal initiative. The role guides system owners and security teams through RMF, ATO, and continuous monitoring in hybrid cloud and on‑prem environments.

You will lead secure cloud design across AWS, Azure, and on‑prem, implement NIST controls, and mentor junior ISSEs while ensuring agency governance and compliance. Strong communication with stakeholders is essential.