Senior IT Security Specialist
Summary
Location: Barcelona (Hybrid)
Salary: Negotiable + 10% Bonus + Car Allowance
Benefits: 25 Days Annual Leave, Medical Insurance, Life Insurance, Meal Vouchers, Employee Assistance Programme, Flexible Working and Retirement Plan.
About the Client
My 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 Role
The 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.
• Collaborate with engineering teams to automate vulnerability handling and reduce manual effort. • Incident Response: Use AI-driven analytics and enrichment tools to accelerate incident detection, investigation, and root-cause analysis.
• Participate in initial triage and forensic analysis in identifying security related incident. Work with SOC team (SIEM/EDR) and follow escalation procedures to contain and resolve threats.
• Security Architecture and Solution validation: Analyse new security requirements and emerging technologies. Design and deploy proof‐of‐concept environments for security tools or architectures. Document findings, operational procedures, and provide recommendations for production rollout.
• Compliance supports: Understand the compliance structure, such as ISMS, SOC-2 requirements and provide the required support.
• Lead security hardening efforts across servers and network devices.
• Support compliance initiatives (such as ISO 27001, GDPR, or NIST) by implementing and documenting security processes.
• Review and enhance identity and access management (IAM), including MFA, privileged account management, and conditional access.
What we are looking for
Knowledge & Skills:
• 3–5+ years of relevant experience, or equivalent practical expertise.
• Practical exposure to security hardening, compliance support, and automation — not just theory.
• Evidence of handling critical situations (e.g., security incidents, audit findings) and applying lessons learned to improve processes.
• Strong knowledge of Windows and Linux security internals and hardening techniques.
• Hands‐on experience with Azure security architecture, policy enforcement, and governance.
• Practical skills in Kubernetes security and containerized workloads.
• Familiarity with CI/CD security integration and IaC tools (Terraform, Ansible).
• Experience operating vulnerability scanning and compliance tools.
• Ability to perform forensic analysis and support incident response workflows.
• Ability to translate security requirements into actionable technical solutions.
• Strong communication skills for cross‐team collaboration.
• Certifications such as AZ‐500 (Azure Security), CKS (Kubernetes Security Specialist), CISSP, or equivalent.
• Experience with policy‐as‐code frameworks (e.g., OPA/Conftest).
• Exposure to AI-enabled security tools (e.g. UEBA, AI-driven SIEM, SOAR, vulnerability prioritization, or automated investigation).
• Experience with Operation mandates in complex environment
• Background in automating security controls and evidence collection for compliance audits.