NS2 Mission
NS2 Mission
is seeking a highly skilled Information Systems Security Officer (ISSO) / Systems Administrator to support a Cyber Security team located in
Chantilly, VA.
This role operates at the Subject Matter Expert (SME) level and is responsible for ensuring the security, compliance, and operational effectiveness of systems supporting mission‑critical services.
The ideal candidate will provide technical guidance within technical services across desktop computing, voice communications, and audio/video capabilities. The ISSO / Systems Administrator will provide Certification & Accreditation (C&A) / Assessment & Authorization (A&A) support, guide systems through the Risk Management Framework (RMF), and assist in maintaining a robust Information Security Program.
Key Responsibilities
Provide Certification and Accreditation (C&A) / Assessment & Authorization (A&A) support throughout the system lifecycle
Run and execute the A&A process, including greenlighting records
Develop, update, and maintain System Security Plans (SSPs) and supporting RMF documentation
Conduct and manage security scans and vulnerability assessments
Mitigate findings and support remediation activities
Perform system security updates, patching, and hardening
Windows and Linux environments
Support configuration management, system administration, and deployment of laptops and endpoints
Shepherd systems through the Sponsor's security and authorization processes
Assist with maintaining and improving the formal Information Security Program
Provide recommendations for continuous improvement of security processes and system architectures
Coordinate closely with GTM and Sponsor staff to ensure technical and operational effectiveness
Provide technical guidance and oversight to both technical and non‑technical stakeholders, including senior leadership
Required Skills & Qualifications
Bachelor's degree in Management Information Systems, Information Assurance, Computer Engineering, or a closely related IT or cybersecurity discipline, or equivalent relevant work experience
Demonstrated experience with the Risk Management Framework (RMF) methodology
Experience managing document repositories and databases
Experience using process tracking and document control software
Strong written and verbal communication skills, including briefing experience
Ability to provide technical guidance to senior‑level technical and non‑technical personnel
Proven ability to organize, plan, and prioritize multiple tasks while meeting deadlines
In‑depth knowledge of INFOSEC policies, regulations, and guidance
Experience with cyber risks such as malware, zero‑day exploits, and denial‑of‑service attacks, including mitigation strategies
Demonstrated commitment to excellent customer service and collaboration across all organizational levels
Desired Skills & Certifications
Experience with the Sponsor's Assessment & Authorization (A&A) process
CISSP (Certified Information Systems Security Professional) certification
Knowledge of the Sponsor's standard project lifecycle
Experience supporting complex enterprise IT environments, including:
Multiple operating systems
Major application systems
Network architectures
Position Clearance Requirement TS/SCI FSP Please be aware many of our positions require the ability to obtain or maintain a U.S. security clearance which requires U.S. citizenship.
We win with inclusion
NS2 Mission's culture of inclusion, focus on health and well‑being, and flexible working models help ensure that everyone - regardless of background - feels included and can run at their best. At NS2 Mission, we believe we are made stronger by the unique capabilities and qualities that each person brings to our company, and we invest in our employees to inspire confidence and help everyone realize their full potential. We ultimately believe in unleashing all talent and creating a better world.
NS2 Mission is committed to the values of Equal Employment Opportunity and provides accessibility accommodations to applicants with physical and/or mental disabilities. If you are interested in applying for employment with NS2 Mission and are in need of accommodation or special assistance to navigate our website or to complete your application, please send an e‑mail with your request to Recruiting Operations Team:
NS2Mission.Careers@sapns2.com .
Qualified applicants will receive consideration for employment without regard to their age, race, religion, national origin, ethnicity, age, gender (including pregnancy, childbirth, et al), sexual orientation, gender identity or expression, protected veteran status, or disability, in compliance with applicable federal, state, and local legal requirements.
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is seeking a highly skilled Information Systems Security Officer (ISSO) / Systems Administrator to support a Cyber Security team located in
Chantilly, VA.
This role operates at the Subject Matter Expert (SME) level and is responsible for ensuring the security, compliance, and operational effectiveness of systems supporting mission‑critical services.
The ideal candidate will provide technical guidance within technical services across desktop computing, voice communications, and audio/video capabilities. The ISSO / Systems Administrator will provide Certification & Accreditation (C&A) / Assessment & Authorization (A&A) support, guide systems through the Risk Management Framework (RMF), and assist in maintaining a robust Information Security Program.
Key Responsibilities
Provide Certification and Accreditation (C&A) / Assessment & Authorization (A&A) support throughout the system lifecycle
Run and execute the A&A process, including greenlighting records
Develop, update, and maintain System Security Plans (SSPs) and supporting RMF documentation
Conduct and manage security scans and vulnerability assessments
Mitigate findings and support remediation activities
Perform system security updates, patching, and hardening
Windows and Linux environments
Support configuration management, system administration, and deployment of laptops and endpoints
Shepherd systems through the Sponsor's security and authorization processes
Assist with maintaining and improving the formal Information Security Program
Provide recommendations for continuous improvement of security processes and system architectures
Coordinate closely with GTM and Sponsor staff to ensure technical and operational effectiveness
Provide technical guidance and oversight to both technical and non‑technical stakeholders, including senior leadership
Required Skills & Qualifications
Bachelor's degree in Management Information Systems, Information Assurance, Computer Engineering, or a closely related IT or cybersecurity discipline, or equivalent relevant work experience
Demonstrated experience with the Risk Management Framework (RMF) methodology
Experience managing document repositories and databases
Experience using process tracking and document control software
Strong written and verbal communication skills, including briefing experience
Ability to provide technical guidance to senior‑level technical and non‑technical personnel
Proven ability to organize, plan, and prioritize multiple tasks while meeting deadlines
In‑depth knowledge of INFOSEC policies, regulations, and guidance
Experience with cyber risks such as malware, zero‑day exploits, and denial‑of‑service attacks, including mitigation strategies
Demonstrated commitment to excellent customer service and collaboration across all organizational levels
Desired Skills & Certifications
Experience with the Sponsor's Assessment & Authorization (A&A) process
CISSP (Certified Information Systems Security Professional) certification
Knowledge of the Sponsor's standard project lifecycle
Experience supporting complex enterprise IT environments, including:
Multiple operating systems
Major application systems
Network architectures
Position Clearance Requirement TS/SCI FSP Please be aware many of our positions require the ability to obtain or maintain a U.S. security clearance which requires U.S. citizenship.
We win with inclusion
NS2 Mission's culture of inclusion, focus on health and well‑being, and flexible working models help ensure that everyone - regardless of background - feels included and can run at their best. At NS2 Mission, we believe we are made stronger by the unique capabilities and qualities that each person brings to our company, and we invest in our employees to inspire confidence and help everyone realize their full potential. We ultimately believe in unleashing all talent and creating a better world.
NS2 Mission is committed to the values of Equal Employment Opportunity and provides accessibility accommodations to applicants with physical and/or mental disabilities. If you are interested in applying for employment with NS2 Mission and are in need of accommodation or special assistance to navigate our website or to complete your application, please send an e‑mail with your request to Recruiting Operations Team:
NS2Mission.Careers@sapns2.com .
Qualified applicants will receive consideration for employment without regard to their age, race, religion, national origin, ethnicity, age, gender (including pregnancy, childbirth, et al), sexual orientation, gender identity or expression, protected veteran status, or disability, in compliance with applicable federal, state, and local legal requirements.
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