Information System Security Officer (ISSO) with Security Clearance

Alexandria, Virginia

Open Systems Technologies Corporation
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Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise Security and Cloud Computing solutions to support large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been committed to delivering high-quality, best-in-class results that bring added value to our clients while investing in our employees' futures by providing exciting projects to work on, and robust benefits to include technical training and certifications, relocation assistance and a 401K match with immediate vesting. Open Systems Technologies is looking for an ISSO to join our team of experts to assist with building state-of-the-art data platforms for the Department of Defense's premier data analytics platform. Manages the day-to-day operations and effectiveness of security-related programs and initiatives; assesses the costs associated with potential threats and solutions required to eliminate or minimize threats. Applies advanced consulting skills and/or extensive technical expertise; full industry knowledge. Develops innovative solutions to complex problems. Works without considerable direction; mentors and may supervise team members. Bachelor's degree and 5+ years directly related experience or Master's degree and 3+ years directly related experience. Years of experience may be accepted in lieu of degree for certain roles. Certifications may be accepted in lieu of a degree for certain technical roles. Basic Qualifications : 5+ years of experience implementing risk management methodologies contained in best practice documentation such as NIST SP 800-30, SP 800-53, SP 800-128, SP 800-160, SP 800-171, or CIS benchmarks, in support of system security configurations, practices, and oversight 3+ years of experience providing cybersecurity leadership in an ISSO capacity, interfacing with internal and external SMEs such as PMs, Cyber Assessors, and AOs Experience with control implementations associated with RMF, FedRAMP, ICD 503, and DoD Information Levels, including applying them to the design and implementation of IT solutions to achieve system authorizations Experience implementing and maintaining security controls within AWS cloud, containerized, CI/CD pipeline, and Agile development environments Experience developing and reviewing ATO authorization packages in Xacta or eMASS Experience analyzing compliance and vulnerability scan results and implementing appropriate mitigations Experience performing audit log reviews to detect anomalous behavior in information systems and networks and overseeing continuous monitoring activities TS/SCI clearance Bachelor's degree CGRC/CAP, CASP+, CCSP, Cloud+, SSCP, Security+, or GSEC certification Preferred Qualifications : Experience with DoD security technical implementation guides (STIGs), checklists, and testing tools, including STIG Viewer, SCAP, and ACAS scanning tools Experience with cyber related tools such as Ansible, Terraform, Splunk, or STIG Viewer Ability to work through challenging security requirements to maintain compliance Possession of excellent written, organizational, presentation, and verbal communication skills Bachelor's degree in IT, Cybersecurity, Data Science, Information Systems, or CS DoD 8570 IAT III or IAM III level Certification such as CISSP Certification AWS Solutions Architect or Certified Security - Specialty Certification BENEFITS OST is an Equal Opportunity Employer and has been operating since 1996 providing support on various contracts with Government agencies. We offer a comprehensive benefits package that includes 3 weeks paid time off, 11 Federal Holidays, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end-of-year profit sharing.
Date Posted: 12 June 2025
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