What You Will Do:

At Independent Software, as an Information Systems Security Engineer (ISSE) you will support vulnerability management, security compliance, and continuous monitoring activities for mission-critical systems. You will configure and maintain Tenable.sc and Nessus, conduct vulnerability and STIG compliance scans, analyze security findings, and work with system administrators and ISSEs to support remediation efforts.

You will also use Splunk to correlate vulnerability and compliance data, develop security dashboards and reports, and support Risk Management Framework (RMF), audit, and assessment activities.

Key Responsibilities:

• Configure, operate, and maintain Tenable.sc and Nessus
• Conduct vulnerability and STIG compliance scans and troubleshoot scanning issues
• Analyze findings and coordinate remediation with system administrators and ISSEs
• Use Splunk to correlate security data and develop dashboards and compliance reports
• Support RMF activities, continuous monitoring, patch verification, audits, and assessments
• Develop and refine scanning policies, baselines, and SOPs
• Test and evaluate system configurations in a lab environment
• Provide security operations support as needed

• Experience with vulnerability scanning and security compliance
• Experience with Tenable.sc, Nessus, and Splunk
• Working knowledge of DoD STIGs, RMF, and NIST 800-53
• Knowledge of servers, virtualization, routers, switches, firewalls, VLANs, routing, and network segmentation
• Strong communication and teamwork skills
• Ability to respond to after-hours requests as required in a 24x7 environment

• Bachelor’s degree in Computer Science, Information Assurance, Information Security Systems Engineering, or related discipline; OR
• Associate’s degree in a related discipline, technical certification such as Security+, and two (2) years of general IT experience; OR
• High School Diploma/GED and four (4) years of general IT experience, including at least one (1) year of information systems security experience

• Active DoD 8570.01-M IAT Level II or IASAE Level I compliance required

• Must possess an active TS SCI with appropriate Polygraph to be considered for this role

• Support critical national security missions that matter
• Be part of a close-knit, employee-first culture where your voice is heard
• Expand your skills through ongoing training, mentorship, and career development
• Enjoy competitive compensation, generous benefits, and work-life balance

Ready to take the next step in your career? Join us and be part of something bigger.

Apply today.


We’re an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.