Information Systems Security Engineer, Entry Level

Independent Software, Inc.; New York (NY); On-site; USD 120,000 - 150,000; Full time

Job summary

Independent Software, Inc. is seeking an Information Systems Security Engineer (ISSE) to support vulnerability management, security compliance, and continuous monitoring for mission-critical systems. You will configure Tenable.sc and Nessus, analyze findings, and work with ISSEs to drive remediation.

Additionally, you will use Splunk to correlate security data, develop dashboards and reports, and support RMF, audits, and assessments. A TS/SCI with polygraph is required for consideration.

Qualifications

• Experience with vulnerability scanning and security compliance.
• Experience with Tenable.sc, Nessus, and Splunk.
• Working knowledge of DoD STIGs, RMF, and NIST 800-53.

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.

Skills

Vulnerability scanning

Security compliance

Communication

Teamwork

After-hours support

Education

Bachelor's degree in Computer Science/Information Security

Associate's degree + Security+ certification + 2 years IT

High School Diploma/GED + 4 years IT with IS security exp

Tools

Tenable.sc

Nessus

Splunk

Job description

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

Required Skills and Qualifications:

• 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

Education and Experience:

Candidates must meet one of the following

• 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

Federal Government ISSE experience of similar scope and complexity is desirable.

Certifications:

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

Clearance Requirement:

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

Why Choose Independent Software:

At Independent Software, our people are the mission. We’ve built a company around collaboration, integrity, and innovation and we make sure our team has the tools and support to grow, succeed, and thrive.

When you join us, you will:

• 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

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.