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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Defensive Security Engineer - **Company:** Squad Conseil Et Expertises - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Cloud Computing Security, Information Systems, Digital Assets, Github, Identity and Access Management, Systems Development Life Cycle, Security Information and Event Management, Software Engineering, Mitre Att&ck, Kubernetes - **Published:** September 14, 2026 - **Apply:** https://www.buscojobs.com.es/defensive-security-engineer-en-badalona-ID-371274691 ## About the Role We believe in a collaborative approach to cybersecurity, where experts and clients work hand-in-hand to anticipate threats and protect critical infrastructure.As part of our growing team, we're seeking a Defensive Security Engineer. Based in Barcelona, this role will put you at the core of a top-tier Incident Response team, defending the digital assets of a company that connects hundreds of millions of people every month.Your ResponsibilitiesAs a member of the Incident Response team, your mission will be to strengthen the defensive posture and ensure an effective response to any potential threat.Actively participate in the entire incident response lifecycle, from preparation and detection to containment, eradication, and recovery.Contribute to the development and refinement of incident response policies, playbooks, and escalation procedures.Collaborate on the management and optimization of defensive security technologies, including EDR, SIEM, DLP, and NIDS.Gather and analyze threat intelligence to enhance detection and prevention efforts.Work closely with the SOC team and other security departments to ensure alignment and operational efficiency.Prepare regular reports on incidents and alerts, sharing valuable insights to drive improvements in security controls.Who We're Looking ForYou have experience as a security analyst with a proven track record of resolving incidents in large-scale enterprise environments.You're proficient with security tools like EDR, SIEM, and NIDS.You have a strong understanding of AWS Cloud security technologies and controls (SCPs, Security Groups, IAM, etc.). You are familiar with security frameworks and methodologies such as MITRE ATT&CK, ENISA, or NIST.You have solid knowledge of security for networks, protocols, and applications.You understand the software development lifecycle (SDLC) and automation with modern tools like Kubernetes, GitHub Actions, and Infrastructure as Code.You are an analytical, autonomous, and proactive individual with a hacker mindset.You are fluent in English (both written and spoken). Spanish language skills are considered a plus.Why Join Squad? Personalized Growth: We help you build a training and certification plan aligned with your professional goals through our SquadeXpérience.Expertise Development: Participate in internal events like our MixYourTalent webinars and monthly CTF sessions.Visibility: Attend major industry conferences and contribute to our #TheExpert technical blog. xqysrnhCulture: Enjoy a dynamic and close-knit environment with after-work events and team gatherings that foster great camaraderie. ## Description Defensive Security Engineer - Barcelona¿Listo para inscribirse?Antes de hacerlo, asegúrese de leer todos los detalles pertenecientes a este trabajo en la descripción a continuación.Since ****, SQUAD Group has been a key player in the cybersecurity landscape.We partner with leading organizations to protect their information systems through a comprehensive 360° offering of consulting, integration, expertise, and managed services.Our mission: Securing Together!We believe in a collaborative approach to cybersecurity, where experts and clients work hand-in-hand to anticipate threats and protect critical infrastructure.As part of our growing team, we're seeking a Defensive Security Engineer.Based in Barcelona, this role will put you at the core of a top-tier Incident Response team, defending the digital assets of a company that connects hundreds of millions of people every month.Your ResponsibilitiesAs a member of the Incident Response team, your mission will be to strengthen the defensive posture and ensure an effective response to any potential threat.Actively participate in the entire incident response lifecycle, from preparation and detection to containment, eradication, and recovery.Contribute to the development and refinement of incident response policies, playbooks, and escalation procedures.Collaborate on the management and optimization of defensive security technologies, including EDR, SIEM, DLP, and NIDS.Gather and analyze threat intelligence to enhance detection and prevention efforts.Work closely with the SOC team and other security departments to ensure alignment and operational efficiency.Prepare regular reports on incidents and alerts, sharing valuable insights to drive improvements in security controls.Who We're Looking ForYou have experience as a security analyst with a proven track record of resolving incidents in large-scale enterprise environments.You're proficient with security tools like EDR, SIEM, and NIDS.You have a strong understanding of AWS Cloud security technologies and controls (SCPs, Security Groups, IAM, etc.).You are familiar with security frameworks and methodologies such as MITRE ATT&CK, ENISA, or NIST.You have solid knowledge of security for networks, protocols, and applications.You understand the software development lifecycle (SDLC) and automation with modern tools like Kubernetes, GitHub Actions, and Infrastructure as Code.You are an analytical, autonomous, and proactive individual with a hacker mindset.You are fluent in English (both written and spoken).Spanish language skills are considered a plus.Why Join Squad?Personalized Growth: We help you build a training and certification plan aligned with your professional goals through our SquadeXpérience.Expertise Development: Participate in internal events like our MixYourTalent webinars and monthly CTF sessions.Visibility: Attend major industry conferences and contribute to our #TheExpert technical blog.xqysrnhCulture: Enjoy a dynamic and close-knit environment with after-work events and team gatherings that foster great camaraderie. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Understanding Kubernetes in a visual way](https://www.wearedevelopers.com/videos/100085-understanding-kubernetes-in-a-visual-way) - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) - [Instant KAI Sandboxes with vCluster: Multi-Tenant, Multi-Scheduler GPU Sharing](https://www.wearedevelopers.com/videos/100333-instant-kai-sandboxes-with-vcluster-multi-tenant-multi-scheduler-gpu-sharing) ## Related Articles - [Events like RSAC Get You CISOs. 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