Senior IT Security SpecialistSummaryLocation:Barcelona (Hybrid)Salary:Negotiable + 10% Bonus + Car AllowanceBenefits:25 Days Annual Leave, Medical Insurance, Life Insurance, Meal Vouchers, Employee Assistance Programme, Adaptable Working and Retirement Plan.About the ClientMy client is the air transport industry's IT provider, delivering solutions for airlines, airports, aircraft, and governments. Their technology powers more seamless, safe, and sustainable air travel. They are looking to hire an experienced Senior IT Security Specialist on a permanent basis.About the RoleThe Senior IT Security Specialist will strengthen our infrastructure and cloud environments, embed security controls into engineering workflows, and improve operational resilience.This role combines technical depth with a builder mindset—designing secure configurations, automating validation, leveraging AI-assisted security capabilities and supporting incident response.We value diverse perspectives and encourage applications from all qualified candidates, regardless of gender, background, age, disability, or neurodiversity.Key Duties:• Security Hardening and Compliance: Implement and maintain security baselines for Windows and Linux systems (e.g., GPO, SELinux). Integrate security validation into CI/CD pipelines and Infrastructure-as-Code (IaC) workflows using tools such as Terraform and Ansible.• Cloud Security: Design and enforce governance policies in Azure. Remediate misconfigurations, vulnerability.• Improve cloud security posture through automation and policy-as-code. Leverage AI-assisted tools to improve vulnerability prioritization, alert triage, and security automation.• Platform and Network Security: Secure containerized environments (e.g., Kubernetes) with proper RBAC, network policies, and configuration controls. Firewall rules optimization• Vulnerability and Compliance Management: Operate and maintain vulnerability scanning tools; ensure coverage and timely remediation.• C