????????Factorial builds AI Business Management Software for companies of all sizes.
Its platform centralizes workflows across HR, Finance, Talent, Operations, and IT, helping teams reduce manual processes.
Factorial is a SaaS company headquartered in Barcelona.
??????- Perform proactive penetration testing across applications, APIs, infrastructure, and AI-powered features- Reproduce and validate vulnerability reports submitted by third parties, including the bug bounty program- Collaborate with development teams to remediate security findings and improve secure coding practices- Improve vulnerability validation, triage, and remediation processes- Hunt for recurring or legacy vulnerability patterns through root cause analysis, previous incidents, and security findings- Build and improve security automations, agents, skills, and CI/CD controls- Help secure the use of AI across product and internal workflows, including LLMs, agents, data access, tools, permissions, and abuse scenarios- Contribute to the development of security tools, automations,



and infrastructure- Stay up to date with security research, threats, attack techniques, and emerging AI security risks??????????- 3+ Years of professional experience in Application Security, Offensive Security, or Penetration Testing- Mandatory experience in Web Application Penetration Testing- Degree in Engineering or Computer Science- Strong knowledge of web applications, databases, network protocols, operating systems, cybersecurity fundamentals, CVSS, testing methodologies, and tooling- Proficiency in scripting or programming languages used in security testing and automation, such as Python or Bash- Ability to work across different security problems and reason critically- Ability to build tools, automations, guardrails, and scalable practical security solutions- Curiosity and willingness to learn AI security topics, including LLM testing, prompt injection, agentic workflows, data exposure, tool permissions, RAG security,

📌 Security Engineer In Saas (España)
🏢 Enfint
📍 España