Information System Security Officer (Poly and 5+ years of experience required)

When You Love the Work You Do, Any Mission Is Possible

Position: Information System Security Officer (5 years of experience required)

***(Active Clearance with a Full Scope Poly Required)

We’re on multiple contracts and have many opportunities. It is encouraged if applicants don’t meet all the technical requirements to still apply.

Join Our Team:

Investing in our employee’s growth is a cornerstone of our philosophy. Joining Tiber means access to ongoing learning opportunities, mentorship, and a supportive environment that supports professional development. We believe in providing the tools and resources for our team to thrive and excel in their careers. We recognize that our collective strength lies in the diversity of our talents. Our collaborative work environment encourages cross functional teamwork, idea sharing, and a collective pursuit of excellence. Your skills and perspectives will be integral to our shared success.

Position Description:

We are seeking a self-motivated and experienced Information System Security Officer to support compliance and strengthen the security posture of systems operating under the Risk Management Framework (RMF). The selected candidate will oversee and maintain 8–10 System Security Plans (SSPs) and play a key role in supporting accreditation, continuous monitoring, and security documentation for complex computing environments.

This position is part of a dynamic program focused on rapid prototyping, advanced technology development, and agile solutions in support of data-intensive analysis and decision-making.

Key Responsibilities

• Maintain the operational security posture for multiple information systems.
• Perform continuous monitoring of system compliance, risks, and vulnerabilities.
• Conduct regular audits and support remediation of findings.
• Prepare systems for security reaccreditation, ensuring documentation is current and complete.
• Apply the principles and controls outlined in NIST 800-53 and follow RMF guidance.
• Assist with the implementation of security policies and enforce security standards.
• Collaborate with system owners and technical staff to assess the impact of system changes on security posture.
• Contribute to vulnerability mitigation planning and incident response readiness.
• Track and update POA&Ms and other compliance artifacts.

Required Skills:

•  IAM Level I certification (DoD 8570-compliant).

•  Hands-on experience with:

• Risk Management Framework (RMF)
• NIST 800-53 security controls
• Security documentation and reaccreditation
• Enterprise system auditing and vulnerability assessments

•  Familiarity with STE/STN requirements.

•  Strong written and verbal communication skills.

Requirements:

• Must be a U.S. citizen.
• Must hold an active clearance with a Full Scope Polygraph
• Bachelor’s degree in computer science, engineering, or related field
• 5 years of professional experience
   

Physical Requirements:

• This position involves sedentary work with physical requirements expected for at least 50% of the time. Essential functions include prolonged periods of sitting, standing, walking, and talking.
• Reasonable accommodation may be made to enable individuals with disabilities to perform essential functions.

EEO Employer:

Tiber Technologies is an Equal Opportunity and Affirmative Action Employer. As a company who is committed to inclusion and diversity in the workplace, it is our policy to prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, pregnancy, veteran status, or any other protected characteristic as outlined by federal, state, and local laws. Our hiring decisions are based solely on merit, qualifications and business needs at the time. This policy applies to all employment practices within our organization including recruiting, hiring, promotion, layoff, compensation, benefits, and training.