Access Control & Network Visibility Product Owner (m/f/d) Madrid Job ID: 84142 Division: Liebherr International Work area: Information technology / Software Country: ES Entry level: Professionals Type of contract: full time We are growing our Integral Corporate Information Security team and we are seeking a Product Owner for Network Security (m/f/d) (Access Control & Network Visibility) who will be accountable for the technical ownership, operational correctness, and lifecycle management of the Access Control & Network Visibility service within the global Network Security portfolio. This service encompasses Network Access Control (NAC), Remote Access technologies, and Network Detection & Response (NDR), forming a foundational pillar of the organization's Zero Trust and network visibility strategy. The Product Owner ensures that access enforcement, telemetry, and detection capabilities are designed, implemented, and operated in a secure, resilient, and auditable manner. You will be end-to-end responsible for service quality, technical decision-making, and risk control within scope, while collaborating closely with Product Management, Architecture, SOC, IAM, PKI, and IT/OT stakeholders. The working location for this position will be in Madrid city where we are currently setting up a new office. We operate a hybrid model, requiring at least 40% of the working time on-site on a weekly basis. Product & Service Ownership:
* Own the technical correctness, stability, and security posture of the Access Control & Network Visibility service.
* Act as L3 escalation and decision authority for complex incidents, platform issues, and high-impact changes.
* Ensure access enforcement and visibility controls align with Zero Trust principles and security policy
* Maintain clear service boundaries, interfaces, and dependencies with IAM, PKI, SOC, IT, OT,



and Product teams. Platform Lifecycle & Engineering Ownership:
* Own the lifecycle management of NAC, Remote Access, and NDR platforms, including onboarding, configuration standards, upgrades, and decommissioning.
* Ensure platforms are implemented according to approved architectures, standards, and patterns.
* Drive continuous improvement of detection quality, access policy effectiveness, and platform resilience.
* Validate and approve technical changes impacting access enforcement or network visibility. Incident, Change & Problem Management:
* Lead and support investigation of complex access or visibility-related incidents with organization-wide impact.
* Ensure root cause analysis (RCA) is performed for significant incidents and recurring issues.
* Participate actively in change management processes, ensuring changes are risk-assessed, tested, and traceable.
* Balance security enforcement with availability and user experience considerations. Service Integration & Cross-Domain Collaboration. Collaborate closely with:
* Identity and Access Management (IAM) teams.
* PKI and certificate services.
* Security Operations Centre (SOC) and Incident Response.
* Network Security Architect and Product Manager.
* IT, OT, and Product teams consuming the service.
* Ensure telemetry generated by NAC and NDR platforms is reliable, meaningful, and consumable by SOC.
* Support secure access patterns for IT, OT,



and product-connected environments. Sourcing & Operational Oversight
* Retain internal ownership and approval authority, regardless of sourcing model.
* Oversee and guide external providers or MSS delivering L1/L2 operational activities where applicable.
* Ensure runbooks, escalation paths, and quality metrics are defined and enforced.
* Validate operational performance and elevate deficiencies through Product Management. Authority & Decision Rights. The Product Owner is accountable for:
* Technical decisions within the Access Control & Network Visibility service scope.
* Service availability, stability, and security posture.
* Approval of service-level changes and enforcement decisions.
* Quality and effectiveness of access control and network visibility outcomes.
* Bachelor's or Master's degree in Cybersecurity, Computer Science, Information Systems, or a related field.
* Strong experience in Network Access Control, Remote Access technologies, or Network Detection & Response platforms.
* Proven track record owning and operating complex security platforms in enterprise environments.
* Solid understanding of Zero Trust principles, identity-centric access control, and network visibility.
* Experience operating services with high blast radius and organizational impact.
* Ability to troubleshoot complex access, authentication, and network flow issues.
* Experience integrating NAC or NDR platforms with IAM, PKI, endpoint posture, or SOC tooling.
* Exposure to ITIL-aligned service operations and change management processes.
* High degree of autonomy, ownership, and accountability.
* Resilient and effective during major incidents.
* Ability to work across teams and communicate security topics

📌 Access Control (Comunidad de Madrid)
🏢 Liebherr
📍 Comunidad de Madrid