> Markdown version of [/jobs/ext/3037045-pen-tester](https://www.wearedevelopers.com/jobs/ext/3037045-pen-tester). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Pen Tester - **Company:** Insight Global - **Location:** Des Plaines, IL, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Software System Penetration Testing, Kali Linux, Web Application Security, Software Vulnerability Management, Tenable Nessus, Qualys - **Published:** September 23, 2026 - **Apply:** https://www.manufacturingworkers.com/job.asp?id=3401620571&tx=FP2118FFG&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * 3+ years of cybersecurity experience - Experience validating and reproducing penetration testing findings - Hands-on experience with infrastructure specific security weaknesses - Hands-on experience with Tenable Nessus (preferred), Qualys, or Rapid7 InsightVM - Proficiency using Kali Linux - Experience determining exploitability, risk, and remediation priority of vulnerabilities - Experience working with engineering/infrastructure teams to validate fixes and remediation efforts Ability to assign severity ratings and verify remediation effectiveness - Web application security experience - Experience with CrowdStrike - OffSec Certified Professional (OSCP) Certification Any Cyber related Certifications ## Description * Review findings identified by third-party penetration testers - Validate whether reported vulnerabilities are legitimate, exploitable, and require remediation - Reproduce exploits and confirm impact within the environment - Analyze infrastructure-related security findings and assess risk - Work with internal technical teams to support remediation efforts - Coordinate with third-party penetration testers to confirm fixes have been successfully implemented - Review affected systems and configurations to determine root cause - Assign severity levels and provide remediation recommendations Track vulnerability remediation and validation efforts through completion 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 HR@insightglobal.com.To 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/. ## Related Videos - [Securing Your Web Application Pipeline From Intruders](https://www.wearedevelopers.com/videos/53-securing-your-web-application-pipeline-from-intruders) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [It's a (testing) trap! - Common testing pitfalls and how to solve them](https://www.wearedevelopers.com/videos/1193-it-s-a-testing-trap-common-testing-pitfalls-and-how-to-solve-them) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [The Overflow: Security and Privacy](https://www.wearedevelopers.com/magazine/715-the-overflow-security-and-privacy) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents)