Information System Security Engineer - ISSE

Job Description

Accenture Federal Services is looking for an Information System Security Engineer (ISSE) to design, implement, and maintain the security architecture and controls for cloud-based client systems supporting the program. You'll build and operate the security tooling — SIEM, vulnerability management, automation — that keeps systems compliant and secure, and provide the technical engineering input that supports RMF/JSIG authorization activities.

What You'll Own

• Design and implementation of security controls across cloud-based systems — identity and access management, encryption, and network security
• Security tooling engineering and administration — SIEM (Splunk), vulnerability management (Nessus/ACAS), and STIG compliance tools
• Security-as-code automation for deploying and configuring security tooling (Ansible, Terraform, PowerShell, Bash, or Python)
• Technical input into RMF authorization artifacts — SSP, SCTM, POA&Ms, and Risk Assessment Reports — supporting the authorization package
• Incident detection engineering — developing detections, tuning alerts, and improving telemetry to support incident response
• Technical compliance review of new and existing systems against IA directives, including protection of data across classification levels

What You'll Deliver

• Security architecture and controls implemented and functioning across supported cloud environments
• Working SIEM and vulnerability management tooling that gives the security team real visibility into risk
• Accurate, engineering-grounded inputs to RMF documentation that hold up under authorization review
• Detections and alerting that measurably improve incident response time and coverage
• Automated, repeatable deployment and configuration of security tooling, not manual one-off setups

Here's What You Need

• 3+ years of experience implementing NIST 800-53 controls and the Risk Management Framework (RMF), including at least 1 year of hands-on experience administering security tooling such as SIEM (Splunk), vulnerability management (Nessus/ACAS), or security automation (Ansible, Terraform, PowerShell, Bash, or Python)
• 2+ years of experience with virtualization or cloud environments (AWS or Azure)
• DoD 8570 IASAE Level II certification (e.g., CISSP, CASP+), or DoD 8140 equivalent
• Bachelor's or Associate degree in Computer Science, Cybersecurity, or a related technical field, or 4+ years of relevant job or military experience in lieu of degree

 Bonus Points If You Have

• AWS or Azure technical certifications, or Splunk-specific certifications (e.g., Splunk Certified Architect, Splunk Enterprise Security Certified Admin)
• Experience with a security incident response team (NOC/SOC) • Familiarity with container security (Docker, Kubernetes, ECS/EKS/AKS)
• JSIG or ICD 503 compliance knowledge
• Experience working in a DevSecOps project environment
• Familiarity with National Security systems and air-gapped environments

Security Requirements

• Active TS clearance required; SCI preferred