Information System Security Officer - TS/SCI (req-290)

CATHEXIS

medical insurance, dental insurance, life insurance, vision insurance, parental leave, paid time off, long term disability, 401(k) United States, Virginia, Tysons Sep 03, 2026 Team

CATHEXIS

elevates the government contracting experience through rapid response, deep skill, and thoughtful problem-solving and communication. Our core capabilities are our top-tier program and project management, data analytics, and audit services, the backbone of which is our integrated approach to operational excellence. You worked hard to get to where you are. You strive to make every day better than the day before. So do we. Team

CATHEXIS

operates with an all-in mindset. We are working together to create a company that supports our shared values and individual goals. Our values are centered around leading with integrity, owning the outcome, growing together, and moving with purpose in everything we do for our employees, customers, partners, and communities. We believe success is best when we listen and lead with empathy; model high standards of ethics to provide a rewarding candidate experience; work hard, have fun, and appreciate the strengths we all bring to the team; and empower our employees to create innovative and trusted results. We are looking for a dynamic Information System Security Officer (ISSO) with an active TS/SCI clearance to join our team! The Information System Security Officer (ISSO) will lead and coordinate cybersecurity accreditation efforts, partnering with Project Teams, the Services, Operations & Delivery Teams, and customers to manage requirements, timelines, documentation, and compliance. The ideal candidate will have experience with system architecture and design, communicating and collaborating across technical teams, project and operations teams, and senior stakeholders, with strong organizational and program management skills. This individual will be responsible for tracking the end-to-end lifecycle of cybersecurity accreditation processes, ensuring requirements, milestones, deliverables, and implementation activities remain aligned with project objectives and timelines. Responsibilities The responsibilities include, but are not limited to: Work closely with Project Teams, the Services, Operations, and Delivery Teams and customers to coordinate technical and security tasks required for accreditation are completed Serve as the Subject Matter Expert to provide guidance on cybersecurity accreditation processes, DevSecOps, and Federal compliance requirements Communicate regularly with teams and customers to clarify requirements, provide updates, and address questions Understand the detailed steps and engagement points of the DoD Risk Management Framework and FedRAMP accreditation processes Understand the software DevSecOps process and articulate what infrastructure, software and approval processes are required to successfully implement a software solution in multiple environments Organize, track, and report on the execution of each project cybersecurity accreditation process timeline Identify potential issues or blockers early and work with the team to resolve them before they impact the project Team

CATHEXIS

elevates the government contracting experience through rapid response, deep skill, and thoughtful problem-solving and communication. Our core capabilities are our top-tier program and project management, data analytics, and audit services, the backbone of which is our integrated approach to operational excellence. You worked hard to get to where you are. You strive to make every day better than the day before. So do we. Team

CATHEXIS

operates with an all-in mindset. We are working together to create a company that supports our shared values and individual goals. Our values are centered around leading with integrity, owning the outcome, growing together, and moving with purpose in everything we do for our employees, customers, partners, and communities. We believe success is best when we listen and lead with empathy; model high standards of ethics to provide a rewarding candidate experience; work hard, have fun, and appreciate the strengths we all bring to the team; and empower our employees to create innovative and trusted results. We are looking for a dynamic Information System Security Officer (ISSO) with an active TS/SCI clearance to join our team! The Information System Security Officer (ISSO) will lead and coordinate cybersecurity accreditation efforts, partnering with Project Teams, the Services, Operations & Delivery Teams, and customers to manage requirements, timelines, documentation, and compliance. The ideal candidate will have experience with system architecture and design, communicating and collaborating across technical teams, project and operations teams, and senior stakeholders, with strong organizational and program management skills. This individual will be responsible for tracking the end-to-end lifecycle of cybersecurity accreditation processes, ensuring requirements, milestones, deliverables, and implementation activities remain aligned with project objectives and timelines. Responsibilities The responsibilities include, but are not limited to: Work closely with Project Teams, the Services, Operations, and Delivery Teams and customers to coordinate technical and security tasks required for accreditation are completed Serve as the Subject Matter Expert to provide guidance on cybersecurity accreditation processes, DevSecOps, and Federal compliance requirements Communicate regularly with teams and customers to clarify requirements, provide updates, and address questions Understand the detailed steps and engagement points of the DoD Risk Management Framework and FedRAMP accreditation processes Understand the software DevSecOps process and articulate what infrastructure, software and approval processes are required to successfully implement a software solution in multiple environments Organize, track, and report on the execution of each project cybersecurity accreditation process timeline Identify potential issues or blockers early and work with the team to resolve them before they impact the project Active TS/SCI clearance or higher is required Certified Information Security System Professional (CISSP) Bachelor's degree in Science, Technology, Engineering, Mathematics or related field Experience working as an ISSO, ISSM, or in a similar role supporting PaaS/SaaS solutions through the DoD RMF process Strong knowledge of cloud platforms, such as AWS, Microsoft Azure, and Google Cloud Platform (GCP) Experience with program management, cross-functional coordination, and executive-level communication Strong problem-solving, critical-thinking, and communication skills, with the ability to work effectively across technical and non-technical teams

CATHEXIS

offers competitive compensation packages to all eligible employees. Our goal is to provide a compensation package that reflects the value you bring to our team, is competitive with national average market rates, and promotes your financial security and personal well-being. The annual salary range for this role is $125,000.00 - $190,000.00 Please note that the salary information provided is a general guideline.

CATHEXIS

considers various factors in its final offer, including location, qualifications, experience, and skills. Performance Bonuses Medical Insurance Dental Insurance Vision Insurance 401(k) Plan (Traditional and ROTH) Life Insurance (Basic, Voluntary & AD&D) Paid Time Off 11 Federal Holidays Parental Leave Commuter Benefits Short Term & Long Term Disability Training & Development Wellness Program Community Outreach Initiatives

CATHEXIS

is an Equal Employment Opportunity 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

EEO IS THE LAW.

If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact the Recruiting DepartmentRecruitingTeam@cathexisfederal.com.