Information Technology Jobs 2026 (Now Hiring) – Smart Auto Apply

We are an employee-centric company that truly appreciates our team members and their value to our customers and the missions they support. We pride ourselves on being forward-leaning thinkers and fostering teams that are and continue to be technically proficient and technically capable across a comprehensive range of cyber mission areas. OneZero full-time employees receive an extremely competitive benefits package that includes health/dental/vision/life insurance plans, 401K with company matching, PTO & paid holidays, employee referral program, and educational assistance. Additional details can be found on our website at: https://www.onezerollc.com/careers/

Position Title: DHS Information Systems Security Officer (ISSO) Senior

Location: NCR

Clearance: TS/SCI

OneZero Solutions is on contract to provide division-wide support for Federal Information Security Modernization Act (FISMA) compliance, execution of the Risk Management Framework (RMF) process to achieve and maintain Authority to Operate (ATO) security authorizations, and deliver cyber security compliance for DHS operational mission systems. We are looking for personnel to support our DHS customer in achieving its mission of providing division-wide cyber security support for operational mission systems and assisting programs as they navigate the ATO process. The result of these efforts will be that the systems meet all the requirements for ATO approval before they are officially submitted to the Office of Chief Information Officer (OCIO).

Qualified Parking Allowance: Employer may provide a monthly stipend or cover the cost of parking for employees who commute to government site by car.

Job Summary

• Assist in the development, implementation, and maintenance of security policies, procedures, and standards for DHS IT systems and networks.
• Conduct and participate in security assessments and audits, identifying vulnerabilities and recommending corrective actions.
• Monitor security events and incidents, investigating suspicious activity and taking appropriate action to mitigate risks.
• Manage security awareness and training programs for DHS personnel.
• Collaborate with IT teams and system owners to integrate security controls into system development and implementation processes.
• Stay current with evolving security threats, vulnerabilities, and industry best practices.
• Document security policies, procedures, and activities.

Qualifications:

• 12+ years of direct experience serving as an Information Systems Security Officer (ISSO) within the DoD/Federal Government. Experience within the Intelligence Community and Law Enforcement is a strong plus.
• Demonstrated understanding of information security principles and best practices, including network security, system security, encryption, and incident response.
• Proficiency in various security assessment methodologies and tools, including vulnerability scanning, penetration testing, and configuration review.
• Experience with relevant security frameworks and standards, such as NIST Cybersecurity Framework, FISMA, RMF, and DoD IA controls.
• Experience with OpenRMF is a strong plus
• Excellent analytical and problem-solving skills.
• Strong written and verbal communication skills.
• Ability to work independently and as part of a team.

Education

Bachelor's degree and/or CRISC, GISP, CASP, CISSP, or other advanced security-related certifications

OneZero Solutions, LLC is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access www.onezerollc.com/careers as a result of your disability.

To request an accommodation, please contact us at recruiting@onezerollc.com or call (202) 987-2580.