Careers/Senior Penetration Tester

03/07

Senior Penetration Tester

Lead complex penetration tests across web applications, infrastructure, cloud environments and other applications. Identify non-obvious vulnerabilities, develop proof-of-concept exploits and produce reports that support effective remediation.

Offensive Security

Remote / hybrid

Baltics

Full time

from €2,200 / mo

What you’ll do

Scope and lead black-box and white-box penetration tests covering web applications, APIs, networks, cloud environments and mobile applications.

Develop custom exploits, scripts and tools to bypass controls and demonstrate concrete impact.

Test manually and in depth beyond automated scanners, combining individual findings into realistic attack paths and business risk.

Write precise, reproducible reports and guide clients through remediation.

Help shape testing methodology, tooling and quality standards across the team.





Mentor junior testers and review their work.

What you bring

At least four years of penetration-testing or offensive-security experience, including experience leading engagements.

Strong across the OWASP Top 10, network and Active Directory attacks, and at least one cloud (Azure/AWS/GCP).

Fluency in at least one scripting language, such as Python, Bash or Ruby, for custom tooling and automation.

Practical experience with Burp Suite, Nmap, Metasploit, BloodHound and comparable tools.

OSCP or equivalent skills, together with strong technical writing in English.

Additional advantages

Source-code review

OT/ICS, mobile or thick-client testing

Public Burp/Ghidra extensions

CVEs or CTF placings

#J-18808-Ljbffr

📌 Senior Penetration Tester (Ontario)
🏢 OffSeq
📍 Ontario