Information System Security Specialist II

Description

TRISTAR is seeking an experienced Information System Security Specialist II in Bloomington, IN to support cybersecurity operations, secure software development, vulnerability management, security compliance, and system hardening for mission-critical applications and infrastructure. The ideal candidate will have hands‑on experience with static code analysis, STIG analysis and implementation, ACAS vulnerability scanning, container security, database hardening, and cybersecurity compliance within secure environments.

The Information System Security Specialist II will work closely with government stakeholders, software developers, and program personnel to identify security vulnerabilities, assess compliance, recommend and implement remediation strategies, and improve security automation across systems and applications.

• Bachelor's degree in Information Technology or related area
• Must have or be able to obtain a CompTIA Security Plus certification prior to start date.
• US Citizen.
• Ability to obtain and maintain a secret clearance.
• Demonstrated experience in cybersecurity engineering, vulnerability management, system security engineering, or software security.
• Hands‑on experience with static code analysis tools, preferably Sonar Qube.
• Experience conducting STIG analysis and reviews, identifying compliance gaps, and supporting remediation activities.
• Experience with ACAS vulnerability scanning, scan result analysis, vulnerability validation, and remediation tracking.
• Knowledge of cybersecurity compliance requirements, security baselines, and vulnerability remediation processes.
• Experience with container security, system hardening, and STIG implementation.
• Experience developing or maintaining automation scripts for security configuration and hardening activities.
• Experience securing PostgreSQL databases or comparable relational database platforms.
• Familiarity with Ansible and reviewing automation playbooks for security compliance.
• Experience conducting vulnerability assessments, analyzing technical findings, and documenting corrective actions.
• Familiarity with POA&Ms and vulnerability remediation tracking.
• Strong analytical, troubleshooting, documentation, and technical communication skills.
• Ability to collaborate effectively with government customers, software developers, and multidisciplinary technical teams.
• Experience supporting cybersecurity efforts within Department of Defense (DoD) environments.
• Familiarity with DoD cybersecurity policies, Risk Management Framework (RMF) processes, and applicable security compliance requirements.
• Experience with ACAS, Tenable Security Center, Nessus, or comparable vulnerability scanning technologies.
• Experience evaluating STIG compliance across Linux-based systems, containerized environments, applications, and databases.
• Experience developing and maintaining POA&Ms.
• Experience with security automation, configuration management, and scripting languages.
• Experience integrating cybersecurity tools and supporting the testing and validation of software enhancements.

Comfort zones don't move missions forward. People do.

At TRISTAR, we're not looking for people who simply check the boxes. We're looking for problem-solvers, innovators, and professionals who are ready to make an impact. Every challenge we tackle supports critical missions, and every team member plays a role in delivering results that matter. If you're driven by purpose, motivated by challenges, and ready to contribute to something bigger than yourself, we invite you to take the next step.

TRISTAR is an SBA certified Service‑Disabled Veteran‑Owned professional services company supporting the U.S. Department of Defense programs. Our core competencies include Electronic Warfare,…