← Search all jobs

Senior Information System Security Officer

Quantum Sky

Listing collected from Quantum Sky's career site. NextChapter is independent of Quantum Sky.

Washington, DC · Posted October 23, 2026

Just laid off? Start here: a plan for the first weeks

See every open role at Quantum Sky

More in District of Columbia job market · Technology & Software · Security jobs

More roles at Quantum Sky

Where Washington, DC ranks

Where Washington, DC placed in our monthly rankings, month by month. Each month stays online at its own address.

Rankings about security jobs

Security jobs · Top Security employers · All rankings

How AI is used in this kind of work

Among information security analysts, AI is already used for a large share of the tasks. Measured exposure for information security analysts: 49% (high).

Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.

Check how this applies to your own job

Skills this job asks for

Say which you have and which you want to build. We use it to match you to jobs like this one.

About the job

Description

Quantum Sky is searching for a Senior Information System Security Officer (ISSO) to support one of our law enforcement customers in Washington, DC. The successful candidate will ensure information systems and high value assets (HVA) meet NIST security requirements, managing the entire Risk Management Framework (RMF) and Authorization to Operate (ATO) lifecycles.

Responsibilities:

Develop and update security authorization packages in accordance with the client's requirement and compliant with FISMA. Core documents that the candidate will be responsible for are the System Security Plan, Risk Assessment Report, Security Assessment Plan and Report, Contingency Plan, Incident Response Plan, Standard Operating Procedure, Plan of Actions and Milestones, Remediation Plans, Configuration Management Plan, etc.

Develop and maintain the Plan of Action and Milestones and support remediation activities

Validate protective measures for physical security are in place to support the system security requirements

Maintain an inventory of hardware and software for the information system

Develop, coordinate, test, and train on Contingency Plans and Incident Response Plans

Perform risk analyses to determine cost-effective and essential safeguards

Support Incident Response and Contingency activities

Perform security control assessment in using NIST 800-53A

Conduct independent scans of the application, network, and database (where required)

Provide continuous monitoring to enforce client security policy and procedures and create processes that will provide oversight into the following activities for the system owner

Coordinate with multiple stakeholders to complete mandatory agency data calls in a timely manner

The ISSO should be intimately familiar with some aspects of the following:

Federal Government Information Assurance policies and regulations to include OMB requirements, FISMA, and NIST 800 series

OMB A-123 circular; OMB A-130 circular; FIPS 140, 199, 200, 201; NIST SP 800-18, 37 Revision 1, 39, 53 Revision 3 and 4, 53A Revision 1, 60 Volumes 1 and 2, 800-64 Revision 2, 137, 144, 147; CNSS 1253 and risk management methodologies

Network, network protocols, routers, and switches and how they interact with automated vulnerability assessment tools, open-source vulnerability assessment tools, and techniques used for evaluating security controls on Windows, Linux, and Unix operating systems, networking devices, databases, and web servers

Developing custom assessment scripts

Network Security Architecture

Qualifications

Required:

8+ years of professional experience with at least 5 years supporting ISSO RMF activities.

Bachelor’s Degree or 4 years of additional experience in lieu of a degree.

A demonstrated understanding of information privacy, including information access, the release of information, and implementation of control technologies as they apply to privacy information contained in electronic and non-electronic media.

Thorough understanding and knowledge of FISMA, NIST RMF and Security and Privacy Assessment and Authorization (SPA&A) processes.

Experience with NIST publications, OMB circulars and memoranda, and CNSS publications and their requirements and impact on system security.

Proficiency in writing technical analysis reports with strong written and oral communication skills

Ability to work quickly, efficiently, and accurately in a dynamic and fluid environment

Good relationship management, business acumen, judgment, and ability to think critically

Desired:

Experience supporting the legislative branch

Preferred certifications: CISA, CAP or equivalent

Experience with FedRAMP and cloud service providers

Experience with CSAM and ServiceNow

Experience with vulnerability assessments tools such as Nessus and/or Qualys

Clearance:

US Citizen with Public Trust eligibility required

Location:

Hybrid-remote in Washington DC, with the expectation to be onsite 2 days/week.

About Quantum Sky

Compensation:

Compensation is unique to each candidate and relative to the skills and experience they bring to the position. The salary for this role is $120,000-$130,000. This does not guarantee a specific salary as compensation is based upon multiple factors such as education, experience, certifications, and other requirements, and may fall outside of the above-stated range.

Benefits:

Highlights of our benefits include Health/Dental/Vision, 401(k) match, Paid Time Off, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and parental leave.

The world the mission operates in is going post-quantum, contested, and machine-speed. Quantum Sky engineers the advantage across cyber, networks, software, and quantum because the mission demands dominance, not parity. We don't follow the map. We draw it.

At Quantum Sky, we believe that success starts with our people. We foster a collaborative, innovative, and mission-driven environment where every team member plays a critical role in shaping the future of technology. Are you ready to join #TeamQuantumSky?

Quantum Sky Engineering LLC is an Equal Opportunity Employer; all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, [sexual orientation, gender identity,] national origin, disability, status as a protected veteran, or any characteristic protected by applicable law.