> Markdown version of [/jobs/ext/3720765-penetration-tester-ai-llm-focus-hybrid](https://www.wearedevelopers.com/jobs/ext/3720765-penetration-tester-ai-llm-focus-hybrid). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Penetration Tester, Ai/Llm Focus - Hybrid - **Company:** Deloitte - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software System Penetration Testing, Nmap, Open Web Application Security, Web Applications, Large Language Models, Generative AI, Metasploit - **Published:** October 14, 2026 - **Apply:** https://www.buscojobs.com.es/penetration-tester-ai-llm-focus-hybrid-en-madrid-ID-376710648 ## About the Role You will execute testing across web apps, APIs, networks, mobile and AI/LLM-based systems, delivering clear findings and actionable recommendations.Ideal candidates have 4+ years in pen testing, hands-on tooling experience (Kali, Burp, Nmap, Metasploit, sqlmap, AMASS) and familiarity with OWASP Top 10. Strong English skills are required; Spanish fluency is a plus. #J-*****-Ljbffr ## Description Deloitte is seeking a Senior Penetration Tester to join the Global Cyber Services team in Madrid.You will execute testing across web apps, APIs, networks, mobile and AI/LLM-based systems, delivering clear findings and actionable recommendations.Ideal candidates have 4+ years in pen testing, hands-on tooling experience (Kali, Burp, Nmap, Metasploit, sqlmap, AMASS) and familiarity with OWASP Top 10.Strong English skills are required; Spanish fluency is a plus.#J-*****-Ljbffr