ISSO Site Administrator - Onsite

Aptask Global Workforce (AGW) is seeking an ISSO Site Administrator for an Onsite position with a leading technology partner in the global aerospace and defense industry located in Philadelphia, PA. This is a direct-hire opportunity.

We are seeking an experienced Information Security Officer (ISO) to serve as the senior, on-site security leader for the Philadelphia facility, with operational coverage and accountability for sites in Tustin, CA and Beavercreek, OH. This is a hands-on role combining security leadership with senior on-site technical support-owning compliance, authorization, and risk management while also provisioning infrastructure, troubleshooting endpoints, and resolving day-to-day IT issues. The successful candidate is the CISO's delegate in the field and the local face of both security and IT operations for the sites within their span.

Key Responsibilities:

• Serve as the senior on-site cybersecurity authority for the Philadelphia facility and as the accountable security officer with regular on-site presence at Tustin, CA and Beavercreek, OH
• Provide direct, hands-on technical support for desktops, laptops, servers, manufacturing/shop-floor computers, networking, and peripheral IT devices
• Own site-level compliance with NIST SP 800-171, CMMC Level 2, DFARS, and ITAR/EAR information security requirements
• Lead and coordinate Authorization to Operate (ATO) activities for site information systems, including drafting and maintaining System Security Plans (SSPs) and Plans of Action and Milestones (POA&Ms)
• Identify, assess, document, and report cybersecurity risks at each covered site
• Serve as the on-site incident commander for cybersecurity events, coordinating with central teams
• Partner with the FSO, HR, and Legal in support of the corporate Insider Threat Program
• Champion security awareness, training, and a strong security culture across each site

Requirements:

• Bachelor's degree in Cybersecurity, Information Systems, Computer Science, or related discipline, or equivalent experience
• 7+ years of progressive experience in cybersecurity and IT, with at least 3 years in a security leadership, ISSM/ISSO, or equivalent role within the Defense Industrial Base (DIB) or the U.S. government
• Active DoD Secret clearance required at time of hire
• Demonstrated hands-on technical experience supporting and troubleshooting Windows 10/11 desktops, Windows Server, manufacturing/shop-floor computers, and networking equipment
• Experience provisioning IT infrastructure end-to-end: imaging, deployment, hardening, and decommissioning
• Strong account management experience across Active Directory, Entra ID (Azure AD), and Microsoft 365
• Proven experience leading or supporting CMMC, NIST SP 800-171, and RMF compliance activities
• Strong working knowledge of DFARS, ITAR/EAR data handling, and CUI protection requirements
• Ability and willingness to travel 25%-40% between Philadelphia, Tustin, and Beavercreek

Desired skills:

• Master's degree in Cybersecurity, Information Assurance, or related field
• Active CISSP, CISM, CAP, or equivalent professional certification
• DoD 8570 / 8140 IAM Level II or III baseline qualification
• IT-side certifications such as CompTIA A+, Network+, Server+, or Microsoft certifications
• Prior experience as an ISSM for a classified information system or NISP-accredited facility
• Familiarity with classified system operations (NIPR / SIPR) and RMF tooling (eMASS, XACTA)
• Experience supporting Special Access Program (SAP) environments
• Working familiarity with enterprise security stacks, including Microsoft Sentinel, Microsoft Defender XDR, and Qualys

Only candidates available and ready to work directly as Aptask Global Workforce (AGW) employees will be considered for this position.

If you have the described qualifications and are interested in this exciting opportunity, apply today!

Aptask Global Workforce (AGW)

ApTask Global Workforce (AGW) is a certified Minority and Veteran workforce solutions company. AGW delivers operational, clinical, lab and professional talent with a strong focus on healthcare and life sciences. The company supports clients with reliable staffing, program expertise and a commitment to quality, speed and consistent delivery.

Benefits of working with ApTask Global Workforce include:

• Medical
• Dental
• Vision
• Sick Pay (for applicable states/municipalities)

Our team stays close to the process and is here to guide you every step of the way. To learn more, please visit our website ;br>
ApTask Global Workforce is an Equal Opportunity Employer. Candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability or status as a protected veteran.

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