Network Security Specialist : Palo Alto, Fortinet, Cisco CCIE Security : New York : $200-300k +[...]

We're partnering with a leading proprietary trading firm to appoint a Senior Network Security Engineer into their globally distributed infrastructure team. This is a rare opportunity to work at the intersection of ultra-low latency networking and advanced security architecture in a fast-paced, technology-first business.You'll play a key role in designing, building, and enhancing secure, high-performance network environments that underpin critical trading operations. This position blends hands-on engineering with project delivery, giving you real ownership over complex initiatives across on-prem and cloud environments.Key ResponsibilitiesArchitect and implement robust network security solutions across enterprise and trading systemsLead end-to-end delivery of infrastructure and security projectsDesign and optimise routing, switching, and secure connectivity across global networksDrive improvements in monitoring, observability, and incident response capabilitiesCollaborate with cross-functional teams to enhance resilience and performanceContribute to automation initiatives to improve scalability and efficiencyRequirementsStrong background in network engineering within complex, high-availability environmentsDeep expertise across routing and switching protocols (e.g. BGP, OSPF, multicast, high-availability technologies)Proven experience working with enterprise-grade firewall and security platforms (e.g. Palo Alto, Fortinet)Hands-on exposure to network access control solutions such as Cisco ISESolid understanding of modern security principles including segmentation and zero-trust approachesScripting/automation capability (Python preferred)Experience troubleshooting and optimising large-scale networks using monitoring and diagnostic toolsFamiliarity with cloud networking concepts across AWS, Azure, or GCP is advantageousCisco certifications CCNP/CCIE (Security track ideally) or equivalent experienceJ-18808-Ljbffr