> Markdown version of [/jobs/ext/2614283-network-and-security-engineer-l2-l3-network-infrastructure-cyber-security](https://www.wearedevelopers.com/jobs/ext/2614283-network-and-security-engineer-l2-l3-network-infrastructure-cyber-security). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Network and Security Engineer - L2/L3 Network Infrastructure - Cyber Security

- **Company:** NEXERA CONSULTING LLC
- **Location:** United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Software System Penetration Testing, Cyber Security, Data Security, Disaster Recovery, Internetworking, Intrusion Detection and Prevention, Network Architecture, Network Load Balancing, Cisco Nexus Switches, Security Information and Event Management, Software Vulnerability Management, Wide Area Networks, EndPointSecurity, Wi-Fi Technology, Firewalls (Computer Science), Information Technology, Qualys
- **Published:** August 13, 2026
- **Apply:** https://computerjobs.com/us/en/mob/job/7D5642CB89E25BEF30

## About the Role

* Palo Alto Firewalls and all associated NG services
 * Endpoint detection and remediation
 * Proven track record in Cyber security and understanding of cyber security analysis, tools and software
 * Experience of implementing, supporting and developing L2/3 network infrastructure
 * Qualys Vulnerability Management
 * Aruba Wifi
 * L2/3 switching - Cisco Nexus
 * Network Load balancing
 * Penetration Testing (3rd Party)
 * Incident management
 * Data Security

## Description

My client who are leaders in their field are looking for a Senior Cyber Security and Network Analyst to provide effective and timely operational support, development and management of the IT network and security infrastructure to meet business requirements and objectives., * Support the delivery and maintenance of the organisation's cyber security and network infrastructure, ensuring systems remain secure, resilient, and aligned to business needs

 * Manage day-to-day security operations, including monitoring SIEM platforms, Firewalls, endpoint protection, and threat detection tools
 * Investigate security incidents and vulnerabilities, recommending and implementing corrective actions where required
 * Maintain and support network technologies including LAN/WAN, Wi-Fi, Internet connectivity, and Layer 2/3 infrastructure
 * Contribute to cyber security and infrastructure projects, including the implementation of new security controls and technologies
 * Perform patching, upgrades, and ongoing maintenance across security and network environments to minimise risk and downtime
 * Develop and maintain security policies, operational procedures, technical documentation, and compliance standards
 * Support disaster recovery and business continuity planning, testing, and readiness activities


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