Junior Penetration Tester: Web & Network Security

Science Applications International Corp.; United States; On-site; USD 85,000 - 110,000; Full time

Job summary

Science Applications International Corp. (SAIC) is seeking a Junior Penetration Tester to support a major state and local government customer. Focus on web application and network penetration testing with mentorship from senior testers.

You will plan and execute assessments, identify vulnerabilities, validate findings, and document results in clear reports. You will work with experienced testers, grow your skills through hands‑on practice, and align your growth with the NICE Framework.

Qualifications

• Foundational knowledge of cybersecurity concepts, including networking and operating systems.
• Familiar with WSTG and OWASP Top 10 to identify vulnerabilities.

Responsibilities

• Conduct penetration tests across client environments using web, network, and mobile targets.
• Manage assigned tasks within engagements from scoping through final reporting.
• Produce clear, structured reports with risk context and remediation guidance.
• Contribute to iOS/Android security assessments and grow mobile testing skills.
• Apply security fundamentals to identify weaknesses in client environments.
• Research and evaluate new tools, techniques, and technologies.

Skills

Foundational cybersecurity knowledge

Strong written communication

Team collaboration

Problem-solving mindset

Education

Bachelor's degree preferred

Tools

Burp Suite

Tenable

Frida

MobSF

PortSwigger Web Security

Job description

Science Applications International Corp. (SAIC) is seeking a Junior Penetration Tester to support a major state and local government customer. Focus on web application and network penetration testing with mentorship from senior testers.

You will plan and execute assessments, identify vulnerabilities, validate findings, and document results in clear reports. You will work with experienced testers, grow your skills through hands‑on practice, and align your growth with the NICE Framework.