Penetration Tester

Insight Global; Oakland (CA); On-site; USD 110,000 - 150,000; Full time

Job summary

Insight Global is seeking a mid-level Penetration Tester with 4–6 years of hands-on experience to perform security assessments across Windows, web applications, Unix/Linux, and cloud environments. The role supports expanding SOC capabilities and will test for vulnerabilities across multiple organizations.

You will identify vulnerabilities, document risks, and provide remediation recommendations while collaborating with security and infrastructure teams to improve overall security posture.

Qualifications

• 4–6 years of penetration testing or offensive security experience.
• Strong experience performing Windows penetration testing.
• Strong experience conducting Web Application penetration testing.
• Hands-on experience with Unix/Linux penetration testing.
• Ability to independently plan, execute, and document penetration testing engagements.
• Broad technical background across infrastructure, applications, and security technologies.
• Azure security testing experience.
• AWS security experience.
• IoT security testing.
• Android app security testing.
• Network security assessment experience.
• Experience with Building Management Systems or OT environments.

Responsibilities

• Conduct internal and external penetration tests across enterprise environments.
• Perform security assessments of Windows, Unix/Linux, and web application environments.
• Identify, validate, and document vulnerabilities, risks, and remediation recommendations.
• Support penetration testing initiatives across multiple business units and environments.
• Collaborate with security and infrastructure teams to improve overall security posture.
• Contribute to testing efforts across emerging technologies and platforms as needed.

Skills

Penetration testing

Threat assessment

Security testing

Independent planning

Broad security tech knowledge

Education

Bachelor's degree in Cybersecurity or related field

Tools

Windows

Web applications

Unix/Linux

Cloud security (AWS/Azure)

IoT security testing

BMS/OT security

Job description

Job Description

Job Description

We are seeking a mid-level Penetration Tester with 4-6 years of hands‑on experience performing security assessments across diverse environments. This role will support the expansion of SOC capabilities and conduct internal and external penetration testing for multiple organizations, working across Windows, web applications, Unix/Linux, and cloud‑based technologies. The ideal candidate is highly technical, self‑sufficient, and comfortable navigating a broad range of technologies and security challenges.

Key Responsibilities

• Conduct internal and external penetration tests across enterprise environments.
• Perform security assessments of Windows, Unix/Linux, and web application environments.
• Identify, validate, and document vulnerabilities, risks, and remediation recommendations.
• Support penetration testing initiatives across multiple business units and environments.
• Collaborate with security and infrastructure teams to improve overall security posture.

Contribute to testing efforts across emerging technologies and platforms as needed.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to [e-mail] learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

Skills and Requirements

• 4-6 years of penetration testing or offensive security experience.
• Strong experience performing Windows penetration testing.
• Strong experience conducting Web Application penetration testing.
• Hands‑on experience with Unix/Linux penetration testing.
• Ability to independently plan, execute, and document penetration testing engagements.
• Broad technical background across infrastructure, applications, and security technologies.
• Azure security testing experience.
• AWS security experience.
• IoT (Internet of Things) security testing.
• Android application security testing.
• Network security assessment experience.
• Experience with Building Management Systems (BMS) or Operational Technology (OT) environments.