Security ISSO

Information Security Analyst Sr Advisor

Your Impact

Own your opportunity to work alongside federal civilian agencies. Make an impact by providing services that help the government ensure the wellbeing of U.S. citizens.

Job Description

We are seeking a qualified, motivated individual to join GDIT as an Information Security Analyst Senior Advisor (Security 1 Lead ISSO). This position will play a dual role as the Security Lead as well as the projects ISSO. Your focus will be on the Systems Security Plan (SSP) and Authorization To Operate (ATO) package documentation, Policy and Controls, and any other duties that fall under the ISSO / Information Assurance role. You will maintain security postures across several development environments, conducting risk assessments, and ensuring all system changes undergo proper security reviews, while keeping abreast of evolving government cybersecurity directives. You will collaborate with GDIT technical leadership, Government customers, and other key stakeholders to assess our existing and new systems infrastructure.

How You'll Make an Impact:

• Ensure security policies and procedures are implemented
• Authors Standard Operating Procedures, policies, and IA plans of action to ensure systems compliance with Federal/DoD guidance
• Identifying corrective actions/mitigation strategies to achieve/sustain (Risk Management Framework (RMF) compliance
• Review and analyze system implementation plans
• Advising system owners and stakeholders on new deployments and advanced cyber security techniques

Information Security Analyst Senior Advisor Duties and Responsibilities

• Serve as the primary authority on System security
• Oversee the implementation of NIST SP 800-53 controls, Classified National Security Information (CNSI) and FedRAMP requirements across Azure Gov and Azure Secret cloud environments
• Develop and maintain security documentation (System Security Plans, security policies, procedures)
• Manage the ATO process by conducting risk assessments, coordinating with authorizing officials, and tracking Plans of Action & Milestones (POA&Ms) for identified gaps
• Monitor system security posture daily by reviewing audit logs and SIEM alerts (Splunk, Azure Sentinel) for suspicious activity or policy violations
• Ensure timely incident investigation and response with the DevOps team
• Guide DevOps and Engineering teams on secure configuration baselines (applying DISA STIGs or CIS benchmarks to servers, containers, and network devices)
• Verify that all system changes pass security review and change controls
• Coordinate regular vulnerability scanning and penetration testing of cloud infrastructure and applications (using approved tools like Nessus, Fortify)
• Ensure any discovered vulnerabilities are remediated within required timeframes
• Enforce robust access controls and identity management
• Regularly review user accounts and privileges in Azure AD and Azure Gov environments
• Ensure multifactor authentication and PKI usage in accordance with federal security policies
• Provide security training and guidance to engineering teams
• Foster a culture of security awareness, and stay up to date on government cybersecurity directives to adapt security strategies

Information Security Analyst Senior Advisor Requirements and Qualifications

• Bachelor's degree in computer science or IT related degree; master's degree or equivalent professional experience in information security is preferred
• Ability to create and maintain system BOE documents to include SSPs, architecture diagrams, contingency planning, and continuous monitoring documentation
• Ability to write and modify documents to include SOPs, processes, and other guidance documentation

• Comprehensive knowledge of corporate Systems/Solutions Architecture processes and trends
• Strong leadership, organizational, and communication skills
• Secret Clearance to start
• Knowledge of Agile software development process
• Experience with Azure AD

Required Technical Skills:

• SCAP, STIG, Patching, eMASS, and related RMF tools
• Cybersecurity, Systems Administration, implementation of RMF tools and processes
• Excellent communication skills
• Experience working in Agile software development teams
• Experience with secure development, coding and engineering practices
• Experience with Cybersecurity, Information Security, and Information Technology Security processes, protocols, and procedures.
• Experience with tools such as Splunk, Azure Sentinel, Nessus, Fortify

Experience

• 10 years of relevant experience
• Experience with Cloud Security
• Experience working with leading firewall, network scanning and authentication technologies
• Experience working with internet, web, application and network security techniques
• Experience in Agile methodology
• Experience in Jira to support development team in agile environment
• Experience working in Federal or State government environments
• Ability to work independently and remotely

Certification: CISSP desired, Active DoD 8570 IAT Level II Certification (Security+ CE)

Travel Required: Little to no travel anticipated (may be required upon customer request)

Location: Hybrid

US Citizenship: U.S. Citizenship required

GDIT Is Your Place:

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you own your career
• Professional growth opportunities including paid education and certifications
• Cutting-edge technology you can learn from
• Full-flex work week to own your priorities at work and at home

Work Requirements