Senior Penetration Tester - Remote | Flexible Hours

UnderDefense Inc.; United States; Hybrid; USD 110,000 - 190,000; Full time

Benefits offered by this job

Flexible hours

Paid vacation and sick leave

Internal training and conferences

English courses

Team culture and growth

Work-rest balance facilities

Job summary

UnderDefense Inc. is seeking a Penetration Tester (Mid+/Senior) to join our security team in the United States. This role covers red team engagements, AD, cloud, mobile and IoT testing, with client-facing reporting expectations.

You will develop implants and exploits as needed and produce detailed risk reports. OSCP-like certifications and coding skills (Python/C/C++/.NET) are highly valued. Flexible hours and remote-friendly option offered.

Qualifications

• Red Team engagements end-to-end including planning, execution and reporting.
• Experience with AD/OSINT, and evading defensive mechanisms.
• Knowledge of testing across Mobile/Desktop/IoT, and cloud infrastructure.
• Experience with Python/C/C++ or .NET is a plus.

Responsibilities

• Independently own and deliver Red Team engagements from start to finish.
• Handle complex projects across Mobile, Desktop, and IoT.
• Develop implants, beacons and exploits when required.
• Create detailed client reports outlining risks and recommendations.
• Share expertise through internal sessions and knowledge sharing.

Skills

Red Team

Active Directory testing

OPSEC techniques

Mobile/Desktop/IoT testing

Cloud testing

Business logic vulnerabilities

AI tooling

English report delivery

Web testing (basics)

Education

OSCP / CRTO / OSEP

Tools

Python

C/C++

.NET

Job description

UnderDefense Inc. is seeking a Penetration Tester (Mid+/Senior) to join our security team in the United States. This role covers red team engagements, AD, cloud, mobile and IoT testing, with client-facing reporting expectations.

You will develop implants and exploits as needed and produce detailed risk reports. OSCP-like certifications and coding skills (Python/C/C++/.NET) are highly valued. Flexible hours and remote-friendly option offered.