Penetration Tester involved in security assessments and technical security evaluations for clients in Madrid. Join a high-performing team fostering learning and professional growth.
Responsibilities
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
1+ 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
Manual penetration testing experience above and beyond running automated tools
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