Penetration Tester

Integrity360

Penetration Tester performing hands-on security testing across various environments for Integrity360. Conducting assessments, documenting findings, and supporting consultancy for security improvement.

Posted 6/14/2026full-timeDublin • 🇮🇪 IrelandJuniorMid-LevelWebsite

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Hard Skills

penetration testingsecurity assessmentsnetworking fundamentalsscriptingethical hackingsource code reviewapplication securitynetwork securityreport writingvulnerability exploitation

Soft Skills

communication skillsdocumentation skillspresentation skillsknowledge sharingclient engagement

Tools & Technologies

NmapBurp SuiteGobusterMetasploitBloodHound

Industry Keywords

OWASP Top 10CVSSMITRE ATT&CKDevOpsInformation security

Tech Stack

Tools & technologies

CloudFirewallsJavaLinux.NETPHPPythonRubyUnix

About the role

Key responsibilities & impact

Conduct penetration tests and technical security assessments on: Web applications and APIs
Mobile applications
Network infrastructure (internal and external)
Cloud and hybrid environments
Social engineering scenarios (as needed)
Consultancy
Other offensive security services
Review system architecture and application designs for security weaknesses.
Exploit and escalate vulnerabilities to demonstrate real-world risk.
Document technical findings and produce high-quality reports with remediation guidance.
Stay current with the latest attack techniques, vulnerabilities, and tools.
Participate in internal knowledge sharing, tool development, and security research.
Support sales activities with technical insights when needed (e.g., scoping calls, workshops).
Represent Integrity360 in client engagements, technical discussions, or industry forums.

Requirements

What you’ll need

2+ year of practical penetration testing experience (in labs, personal projects, or professionally)
Strong understanding of core security concepts (e.g., OWASP Top 10, CVSS, MITRE ATT&CK)
Solid grasp of networking fundamentals, ports/protocols, basic Windows/Linux internals
Experience with common tools: Nmap, Burp Suite, Gobuster, Metasploit, BloodHound, etc.
Manual testing exposure — not just automated scans
Basic scripting or coding (e.g., Python, Bash, PowerShell)
Good communication and documentation skills
Hands-on experience as a penetration tester, with a proven track record of delivering quality security assessments.
Industry experience working in Dev/Admin/Engineer field
Industry experience working in the Information security field as a penetration tester
Development and/or source code review experience in C/C++, C#, VB.NET, ASP, PHP, Java, Python or Ruby
Unix, Windows and networking security skills
Familiarity with general application and network security concepts
Excellent communication skills
Networking knowledge (ports, protocols, firewalls, routing, VPN)
Understanding of Security Auditing tools
Ethical hacking experience
Report writing experience
Presentation skills
Understanding of programming methodologies in one or more programming or scripting languages: Java, Python, C/C++, C#, .NET, ASP, PHP, etc.

Benefits

Comp & perks

Support for certifications, lab access, and personal development
Internal mentoring and hands-on training
Exposure to real client projects and cutting-edge engagements
A high-performing, international team where you can grow fast