Information System Security Officer (ISSO)

Accenture; Huntsville (AL); On-site; USD 90,000 - 130,000; Full time

Job summary

Accenture Federal Services is seeking an Information System Security Officer (ISSO) to support security, compliance, and risk management for cloud-based systems. You will maintain the security posture required for authorization to operate, support continuous monitoring and RMF/JSIG activities, and work with security engineering, DevOps, and IT operations teams to keep systems compliant as they evolve.

The role requires 3+ years of ISSO experience, DoD 8570 Level II certification, and a related

Qualifications

• 3+ years of experience in an ISSO or equivalent security role — implementing security controls under RMF, JSIG, or ICD 503, using vulnerability management and SIEM tools (e.g., Nessus/ACAS, Splunk), and supporting cloud environments (AWS or Azure).
• DoD 8570 IAT Level II certification (e.g., Security+), or DoD 8140 equivalent.
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field, or 4 years of experience.

Responsibilities

• Continuous monitoring, vulnerability assessment, and risk analysis, including validating remediation actions and documenting POA&M updates.
• RMF/JSIG documentation packages — SSP, SAP, SAR, POA&M, and continuous monitoring artifacts — supporting ATO and audit activities.
• Security control implementation and compliance with STIG/CIS benchmarks and security authorization baselines.
• Coordination with system administrators, security engineers, and DevOps teams on system changes that affect security posture, including Zero Trust Architecture requirements.
• Incident handling and investigation of security anomalies, escalating and tracking recovery actions.
• Audit log review and continuous monitoring tool analysis to identify anomalies, threats, and insider risk.

Skills

RMF/JSIG/ICD 503

Vulnerability management

SIEM tools

Education

Bachelor's degree in CS/IS/Engineering

Tools

Nessus/ACAS

Splunk

Job description

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people.Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations.

Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to Work, we offer a collaborative and caring community where you feel like you belong and are empowered to grow, learn and thrive through hands-on experience, certifications, industry training and more.

Join us to drive positive, lasting change that moves missions and the government forward!

Job Description

Accenture Federal Services is looking for an Information System Security Officer (ISSO) to support the security, compliance, and risk management of cloud-based systems for the program. You'll maintain the operational security posture required for authorization to operate, support continuous monitoring and RMF/JSIG accreditation activities, and work closely with security engineering, DevOps, and IT operations teams to keep systems compliant as they evolve.

What You'll Own

• Continuous monitoring, vulnerability assessment, and risk analysis, including validating remediation actions and documenting POA&M updates
• RMF/JSIG documentation packages — SSP, SAP, SAR, POA&M, and continuous monitoring artifacts — supporting ATO and audit activities
• Security control implementation and compliance with STIG/CIS benchmarks and security authorization baselines
• Coordination with system administrators, security engineers, and DevOps teams on system changes that affect security posture, including Zero Trust Architecture requirements
• Incident handling and investigation of security anomalies, escalating and tracking recovery actions
• Audit log review and continuous monitoring tool analysis to identify anomalies, threats, and insider risk

What You'll Deliver

• Systems that maintain compliance with their security authorization package and ATO requirements
• Complete, audit-ready RMF documentation supporting authorization and assessment activities
• Timely identification, tracking, and remediation of vulnerabilities and security findings
• Documented incident response actions with verified restoration of affected controls
• A continuous monitoring program that measurably improves system security posture over time

Here's What You Need

• 3+ years of experience in an ISSO or equivalent security role — implementing security controls under RMF, JSIG, or ICD 503, using vulnerability management and SIEM tools (e.g., Nessus/ACAS, Splunk), and supporting cloud environments (AWS or Azure)
• DoD 8570 IAT Level II certification (e.g., Security+), or DoD 8140 equivalent
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field, or 4