Network andamp; Security Specialist (Security-Focused)London (Moorgate) | 4 days WFH per monthSalary: CompetitiveSponsorship: Not availableVIQU have partnered with a globally recognised energy trading organisation operating within a highly regulated, security-critical environment. With business-critical systems supporting international operations, cyber security is a core priority rather than an afterthought.This role is heavily weighted towards security, with network responsibilities forming part of a wider cyber defence remit. The Role As the Network andamp; Security Specialist, you''ll be the technical authority for cyber security operations, owning the end-to-end security life cycle across enterprise infrastructure.Key responsibilities include: Security monitoring, threat hunting and incident responseSIEM, MDR oversight and vulnerability managementFirewall, VPN, IDS/IPS and Zero Trust technologiesPen testing coordination and CVSS-led remediationSecurity architecture planning, policies and disaster recovery Core Technology Stack Security: Checkpoint, Cisco ISE, Zscaler (ZIA/ZPA/ZDX), Splunk, Sophos MDR, Mimecast, OktaNetworking: Cisco (Catalyst, Nexus), Fortinet, Firewalls and VPNsSecurity Ops: SIEM, intrusion detection, ethical hackingScripting: PowerShell What They''re Looking For Proven experience in a security-focused infrastructure roleStrong hands-on expertise with Firewalls, SIEM and threat detectionExperience in regulated or high-risk environments (preferred)CCNA