Information System Security Officer (ISSO) - Cloud Data Platform

We are seeking an experienced Information System Security Officer (ISSO) to support a federal client's Cloud Data Platform modernization initiative in Washington, DC. This role is responsible for ensuring the security, compliance, and continuous authorization of a Microsoft Azure-based cloud analytics environment supporting mission-critical economic research and large-scale data analytics.

The successful candidate will provide cybersecurity leadership across cloud engineering, governance, risk management, continuous monitoring, vulnerability management, and Authority to Operate (ATO) activities while partnering closely with Government stakeholders, cloud architects, and data engineering teams.

This is an outstanding opportunity for a cloud security professional with deep experience supporting FedRAMP, FISMA, NIST 800-53, Zero Trust, Microsoft Azure, and federal compliance frameworks.

Key Responsibilities
Serve as the designated Information System Security Officer (ISSO) and primary cybersecurity lead for the cloud data platform.
Lead all security activities supporting the system's Authority to Operate (ATO) and ongoing authorization.
Develop, maintain, and update security documentation including:
System Security Plans (SSPs)
POA&Ms
Risk Assessments
Security Assessment Reports (SARs)
Continuous Monitoring artifacts
Support compliance with:
FedRAMP Moderate
FISMA
NIST SP 800-53
NIST SP 800-207 (Zero Trust)
FTC security policies
Implement and maintain cloud security controls within Microsoft Azure.
Design and manage identity and access management using Microsoft Entra ID and RBAC.
Configure and validate encryption for data at rest and in transit.
Support vulnerability management, remediation planning, and security assessments.
Coordinate monthly continuous monitoring activities and security metrics reporting.
Conduct annual risk assessments and security control reviews.
Support privacy documentation including PTAs and PIAs.
Work closely with the Government Authorizing Official, System Owner, CISO, COR, and Continuous Assurance teams.
Assist with incident response, forensic investigations, and security event analysis.
Coordinate vulnerability scanning, penetration testing, and remediation activities.
Participate in tabletop exercises, disaster recovery planning, and cyber resilience initiatives.
Ensure cloud solutions comply with FedRAMP authorization boundaries and federal cybersecurity requirements.
Provide technical guidance to cloud architects and engineering teams on secure cloud design and implementation.
Required Qualifications
Minimum 5 years of experience performing ISSO or cloud cybersecurity responsibilities within federal cloud environments.
Experience supporting Microsoft Azure cloud environments.
Strong knowledge of:
Cloud Security
Zero Trust Architecture
Identity and Access Management
RBAC
Encryption technologies
Data Loss Prevention (DLP)
Vulnerability Management
Incident Response
Experience supporting:
FedRAMP
FISMA
NIST 800-53
Continuous Monitoring
Risk Management Framework (RMF)
Experience developing and maintaining ATO packages.
Strong understanding of cloud security architecture and secure system design.
Excellent written communication skills with experience producing executive-level security documentation.
Required Certifications
Candidates must possess the following certifications (or Government-approved equivalents):

Certified Information Systems Security Professional (CISSP)
Certified Cloud Security Professional (CCSP)
CompTIA Cloud+
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