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Internal Pen Tester

Conduct internal penetration tests across Windows and Linux environments

Perform manual, hands-on penetration testing to identify vulnerabilities and misconfigurations in enterprise environments. Customize and configure testing tools for client-specific objectives and deliver clear, technically sound reports to technical and non-technical stakeholders. Collaborate with Red and Purple Teams to enhance detection capabilities and validate defensive controls through simulated adversarial tactics.

Why This Role?

Collaborate with Red and Purple Teams to enhance detection capabilities and validate defensive controls

Key Responsibilities

  • Conduct internal penetration tests across Windows and Linux environments simulating real-world adversarial tactics
  • Perform manual hands-on keyboard testing to identify vulnerabilities, misconfigurations, and lateral movement paths
  • Customize and configure penetration testing tools to suit client-specific environments and objectives
  • Deliver clear technically sound reports and present findings to both technical and non-technical stakeholders
  • Analyze Active Directory structures and registry configurations to uncover privilege escalation and persistence opportunities
  • Apply current TTPs used by threat actors to assess organizational resilience

Requirements

  • 5+ years of experience in internal penetration testing or offensive security
  • Strong proficiency in Windows and Linux operating systems including registry and AD analysis
  • Experience with tools such as BloodHound, Mimikatz, Metasploit, Cobalt Strike, and custom scripts
  • Proven ability to customize and configure tools for unique testing scenarios
  • Solid scripting skills in Python, PowerShell, Bash, or similar
  • Familiarity with Red Team and Purple Team methodologies and collaboration

Required Skills

penetration testingwindowslinuxscriptingcybersecurityvulnerability assessmenttool customizationActive Directory analysistechnical reporting

Indonesia Context

Working Hours Overlap:
Flexible — work your own hours
See remote (USD) vs local pay →
View Original Description from LinkedIn

Original description from LinkedIn

**Piper Companies** is seeking an **Internal Penetration Tester** to join a high-impact cybersecurity team within a fast-growing security firm. This is a **fully remote** , hands-on role focused on identifying and exploiting vulnerabilities across enterprise environments, supporting proactive threat detection, and driving continuous security improvement. The position emphasizes **manual testing, tool customization, and collaboration with clients and internal teams** to deliver actionable insights and strengthen security posture. **Responsibilities of the Internal Penetration Tester include:** - Conduct internal penetration tests across Windows and Linux environments, simulating real-world adversarial tactics. - Perform manual, hands-on keyboard testing to identify vulnerabilities, misconfigurations, and lateral movement paths. - Customize and configure penetration testing tools to suit client-specific environments and objectives. - Deliver clear, technically sound reports and present findings to both technical and non-technical stakeholders. - Analyze Active Directory structures and registry configurations to uncover privilege escalation and persistence opportunities. - Apply current TTPs (Tactics, Techniques, and Procedures) used by threat actors to assess organizational resilience. - Collaborate with Red and Purple Teams to enhance detection capabilities and validate defensive controls. - Script automation and exploit development using Python, PowerShell, Bash, or similar languages. - Work independently and as part of a team to execute major client engagements with precision and professionalism. - Provide consulting support to clients, helping them understand risks and prioritize remediation strategies. - Maintain up-to-date knowledge of emerging threats, vulnerabilities, and security tools. **Qualifications for the Internal Penetration Tester include:** - 5+ years of experience in internal penetration testing or offensive security. - Strong proficiency in Windows and Linux operating systems, including registry and AD analysis. - Experience with tools such as BloodHound, Mimikatz, Metasploit, Cobalt Strike, and custom scripts. - Proven ability to customize and configure tools for unique testing scenarios. - Solid scripting skills in Python, PowerShell, Bash, or similar. - Familiarity with Red Team and Purple Team methodologies and collaboration. - Excellent technical writing and client communication skills. - Ability to work autonomously and within a team on complex engagements. - Understanding of attacker TTPs and threat modeling frameworks (e.g., MITRE ATT&CK). - Relevant certifications (e.g., OSCP, CRTP, PNPT, CEH) are a strong plus. **Compensation for the Internal Penetration Tester includes:** - Salary Range: $175,000 – $210,000 - Comprehensive Benefits: Medical, Dental, Vision, 401K, PTO, Sick Leave (as required by law), and Holidays - Location: Fully Remote - REMOTE #InternalPenTesting #RedTeam #PurpleTeam #ActiveDirectory #WindowsRegistry #ManualTesting #CyberConsulting #Scripting #ThreatDetection #SecurityReports #PenTestTools #TTPS #OSCP #PythonSecurity #PowerShell #CybersecurityJobs

Salary Context

Similar Engineering roles on LokerDollar pay around $170k/yr (range $855–1000k/yr, n=883 active listings).

Openness not stated by employer — check the listing

Source
Salary
$175k–210k/yr
Job Type
full time
Location
Remote · Open worldwide
Category
Seniority
senior
PostedNewNew & verified
Sep 12, 2026

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Frequently asked questions

Is Internal Pen Tester at Piper Companies a remote job?
Yes. Internal Pen Tester at Piper Companies is a fully remote role open to candidates worldwide.
What is the salary for Internal Pen Tester at Piper Companies?
The listed pay range for this role is $175k–210k/yr.
What type of employment is Internal Pen Tester at Piper Companies?
This is a full time position.
How do I apply?
Click the "Apply" button on this page to go to the official application at Piper Companies.

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