Job Description

Hey there, Cybersecurity Enthusiasts! 🛡️

Factorial is looking for a skilled and experienced Infrastructure Security Engineer to join our team and reinforce the end-to-end security management of our systems and cloud environments. In this role, you will be the guardian of our core foundations, taking full ownership of infrastructure security from risk assessment and vulnerability management to proactive defense and incident response.

As a key member of the Security Team, you will ensure that our global infrastructure remains resilient, compliant, and secure. You’ll work closely with SRE and IT teams to maintain a strong security posture, implementing hardening strategies and managing the entire lifecycle of infrastructure risks.

The Mission:

• End-to-End Infrastructure Management: Drive the security strategy for our cloud environments, ensuring security is baked into the architecture from day one.
• Detection & Response: Continuously monitor security alerts and incidents. Conduct thorough incident response and detailed investigations to identify root causes within the infrastructure stack.
• Vulnerability & Risk Management: Lead the identification, assessment, and remediation of infrastructure vulnerabilities. Maintain the infrastructure risk register and prioritize mitigation efforts based on business impact.
• Hardening & Resilience: Implement and maintain rigorous hardening strategies across our infrastructure to increase resilience against sophisticated cyberattacks.
• AI, Tooling & Automation: Develop and manage infrastructure security tooling (CNAPP, CSPM, Vulnerability Scanners) to ensure accurate threat detection and automated compliance.
• Secure Delivery Pipelines: Secure the infrastructure and runners within our CI/CD pipelines, ensuring the environment where code is built and deployed is protected.
• Collaboration: Partner with Infra, IT, DX and SRE teams to integrate infrastructure security best practices and automate security controls.
• Strategy & Documentation: Develop, maintain, and regularly update incident response plans and infrastructure security policies.

Your Profile:

• 5+ years of experience in Infrastructure Security or Security Engineering, specifically within Cloud environments, Infrastructure as Code, and Containerization (Kubernetes).
• Tooling Proficiency: Experience using and managing EDR, CNAPP, DLP, SIEM, and vulnerability management solutions.
• Threat Knowledge: Strong understanding of Cyberattacks and Threat Actor Tactics, Techniques, and Procedures (TTPs) related to infrastructure and cloud escape.
• Vulnerability Management Expert: Deep experience managing enterprise-grade vulnerability scanning and risk prioritization workflows.
• Infrastructure Specialist: Strong understanding of network security, OS hardening (Linux/Unix), and identity management (IAM).
• Automation Mindset: Proficiency in scripting and automation using Python, Bash, and AI, to streamline SOC operations.
• Education: Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent experience.
• Bonus Points: Industry certifications.

How We Work 💻

At Factorial, we believe the best products are built when people come together—in person—to collaborate, challenge ideas, and move fast. That’s why our Engineering Team follows an office-first, flexible approach.

We work on-site several days a week (80%), using that time to connect, align, and innovate as a team. However, we also support remote work when it makes sense (20%) for deep focus or personal needs.

About Factorial 🚀

Factorial is the AI for Business that knows companies, connects how work happens across the business, and turns that context into action.

Founded in Barcelona in 2016, we now have +1,700 employees serving more than 16,000 companies across 112 countries.

Factorial started with a simple idea: companies were spending too much time managing processes and not enough time doing the work they were hired to do: their best work.

But as companies grow, work gets more disconnected. More people, more tools, more information, and more time spent connecting the dots. Generic AI can answer questions, but it doesn’t know your company. Every time, you have to give it the context.

Factorial is different. Because it’s inside the company, it already knows how it works, including its people, processes, policies, and data. So you can ask it to do real work, from screening candidates and managing expenses to answering questions and creating reports.

AI isn’t the goal. Giving people back their time is.

When work changes, so do we.

We believe in diverse talent: we welcome applicants from all backgrounds and strongly encourage people of diverse experiences and identities to apply.

We believe in inclusion: we are committed to equal opportunities and actively promote workplace inclusion of people with disabilities. If you would like to learn more about our inclusive recruitment processes, you are welcome to indicate so optionally and we will share additional information with you.

Our Values

• We own it: We take responsibility for every project. We make decisions, not excuses.
• We learn and teach: We're dedicated to learning something new every day and, above all, share it.
• We partner: Every decision is a team decision. We trust each other.
• We grow fast: We act fast. We think that the worst mistake is not learning from them.

Wanna learn more about us? Check our website!

Perks of being part of Factorial 😎

• High growth, multicultural and friendly environment
• Competitive ESOP plan
• Alan as private health insurance
• Healthy life with Wellhub (Gyms, pools, outdoor classes)
• Save expenses with Cobee
• Language classes
• Breakfast in the office and organic fruit
• Food discounts with Nora
• Pet Friendly
• Much more that we'll spill during the interview process!