Mid-Level Penetration Tester

Science Applications International Corporation (SAIC) is seeking a Mid-Level Penetration Tester to join our offensive security practice supporting major state and local government customers. This role is ideal for a cybersecurity professional with hands-on penetration testing experience who can independently conduct security assessments, identify vulnerabilities, and deliver actionable recommendations to clients. As a Mid-Level Penetration Tester, you will lead and support engagements involving web application, network, API, mobile, and infrastructure security assessments. You will work closely with clients, security engineers, and fellow testers to evaluate security controls, simulate real-world attack scenarios, and help organizations strengthen their security posture. The ideal candidate combines strong technical expertise with effective communication skills and a passion for offensive security. This position reports to the Security Assessments Manager.

Responsibilities

Assessment Execution

• Independently perform penetration testing engagements against web applications, networks, APIs, mobile applications, wireless environments, and cloud-hosted systems utilizing both black-box and white-box methodologies.
• Conduct testing activities aligned with NIST, OWASP, PTES, and industry-recognized security assessment frameworks.
• Develop attack paths, validate vulnerabilities, and demonstrate exploitability while maintaining engagement objectives and timelines.

Engagement Leadership

• Manage assigned testing engagements from planning and scoping support through execution, reporting, and customer debriefs.
• Coordinate with senior team members, project managers, and clients to ensure successful assessment delivery.
• Provide technical guidance and mentorship to junior team members when appropriate.

Reporting and Analysis

• Produce comprehensive technical reports that clearly communicate vulnerabilities, business impact, attack scenarios, and remediation recommendations.
• Present findings to technical teams, management, and executive stakeholders.
• Assist customers in understanding risk priorities and developing remediation strategies.

Advanced Security Testing

• Conduct web application security assessments utilizing the OWASP Web Security Testing Guide (WSTG) and OWASP Top 10 methodologies.
• Perform API security assessments involving REST, GraphQL, SOAP, and modern authentication mechanisms.
• Conduct mobile application security testing on iOS and Android platforms.
• Participate in source code reviews and secure code assessments as part of white-box testing engagements.

Tool Development and Research

• Utilize commercial, government, open-source, and custom-developed security tools to identify, exploit, and validate vulnerabilities.
• Develop and maintain scripts, utilities, and testing methodologies to improve assessment efficiency and effectiveness.
• Evaluate emerging attack techniques, vulnerabilities, and security technologies, incorporating findings into team practices.

Client Engagement

• Serve as a trusted advisor to customers by communicating technical findings in both technical and business-focused terms.
• Present assessment outcomes and remediation guidance during customer briefings and readout sessions.
• Build and maintain positive customer relationships through professional engagement delivery.

Continuous Improvement

• Remain current on evolving threats, offensive security techniques, emerging vulnerabilities, and industry best practices.
• Contribute to internal research projects, methodology enhancements, tool development initiatives, and knowledge-sharing activities.
• Support cybersecurity capability growth aligned to the NICE Cybersecurity Workforce Framework.

Required Education and Qualifications

• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, Engineering, or a related field; equivalency through relevant experience will be considered.
• Ability to successfully pass a CJIS Criminal Justice background investigation and maintain CJIS eligibility throughout employment.
• One or more industry-recognized penetration testing certifications preferred, such as:
• OSCP
• GWAPT
• PNPT
• GPEN
• OSEP
• OSWE
• PenTest+
• eJPT/eCPPT

Required Experience

• 5+ years of hands-on cybersecurity experience, including 2+ years conducting penetration testing or offensive security assessments.
• Strong knowledge of web application security testing methodologies, including OWASP WSTG and OWASP Top 10.
• Experience conducting authenticated and unauthenticated network penetration tests.
• Proficiency with industry-standard testing tools, including Burp Suite Professional, Nmap, Nessus/Tenable, Metasploit, and similar platforms.
• Experience identifying, exploiting, validating, and documenting security vulnerabilities.
• Working knowledge of network protocols, operating systems, Active Directory, authentication mechanisms, and common enterprise architectures.
• Experience creating professional technical reports and presenting findings to technical and non-technical audiences.
• Knowledge of attack frameworks and methodologies, including MITRE ATT&CK, NIST, and PTES.
• Strong analytical, troubleshooting, and problem-solving skills.

Preferred Experience

• Experience conducting mobile application security assessments using tools such as Frida, Objection, MobSF, and ADB.
• Experience assessing APIs, cloud environments (Azure, AWS, GCP), and containerized applications.
• Source code review experience in languages such as Java, C#, Python, JavaScript, or Go.
• Familiarity with red team operations, adversary emulation, and attack path analysis.
• Experience with scripting or automation using Python, PowerShell, Bash, or similar languages.
• Knowledge of cloud security architectures, digital forensics, malware analysis, or reverse engineering.
• Experience mentoring junior penetration testers or leading portions of assessment engagements.
• Participation in security research, bug bounty programs, Capture-the-Flag competitions, or public vulnerability disclosures.

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.