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Mastech Digital · 1 week ago

Information System Security Officer (ISSO)

DC-Baltimore Area

Contract

Hybrid

Mid Level

Mastech Digital is supporting a large, well-established consulting engagement on a federal program and is actively hiring Information System Security Officers (ISSO). The role involves maintaining active Authorizations to Operate (ATO), performing continuous monitoring, and partnering with stakeholders to resolve security gaps.

Information Technology

Growth Opportunities

No H1B

U.S. Citizen Only

Hiring Manager

Aakash Chauhan

Responsibilities

Maintain and support active Authorizations to Operate (ATO)

Perform continuous monitoring, system self-assessments, and control validations

Review vulnerability scan reports, compliance findings, and system logs

Manage and update POA&Ms, driving remediation through closure

Conduct Security Impact Analyses (SIA) for system changes

Partner with technical and business stakeholders to resolve security gaps

Support audits, inspections, and risk assessments with required documentation

Qualification

NIST Risk Management FrameworkSystem Security PlansAuthorization to OperateVulnerability reportsConfiguration ManagementCybersecurityInformation TechnologyComputer ScienceSoft skills

Required

Strong hands-on experience with NIST Risk Management Framework (RMF)

Proven experience developing and maintaining: System Security Plans (SSP), POA&Ms, ATO packages, Vulnerability reports, Configuration Management & Supply Chain Risk Management Plans, Interconnection Security Agreements (ISA), MOUs, and IDEAs

Background in federal or highly regulated environments

Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or related field

US Citizenship: Required