Senior Network Engineer
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Job Description
Senior Network Engineer enhancing secure network infrastructure for wireless providers. Leading design and implementation of global enterprise network operations and compliance initiatives.
Responsibilities:
- Design, implement, and maintain scalable, secure network infrastructure across data centers, remote sites, and cloud environments (AWS and Azure).
- Architect and operate routing and switching infrastructure including BGP, NAT, VLANs, Spanning Tree, IPsec VPNs, PBR, and HSRP.
- Manage and tune enterprise firewall platforms (Cisco, pfSense, Check Point) in alignment with PCI DSS segmentation and access control requirements.
- Administer and optimize F5 BIG-IP LTM/GTM for application delivery, load balancing, and traffic steering across production environments.
- Manage Cloudflare DNS, WAF, and network security policies for internet-facing properties.
- Maintain network security policy management via FireMon; contribute to access path analysis and rule lifecycle management.
- Evaluate, deploy, and operationalize free open-source software (FOSS) as replacements for commercial products where appropriate (e.g., network monitoring, IPAM, configuration backup).
- Manage Proxmox-based virtualization as it relates to network-adjacent workloads and VM/LXC networking.
- Coordinate with vendors and carriers to manage WAN circuits, resolve outages, and drive cost optimization.
- Maintain comprehensive documentation for network topology, configurations, and operational runbooks; support PCI DSS and SOC 1 Type 2 audit evidence collection.
- Participate in on-call rotation and be available for after-hours work including unscheduled incidents.
- Travel to domestic data center and office locations as needed to support deployments or incidents.
Requirements:
- 10+ years of hands-on enterprise networking experience in large-scale, multi-site environments.
- Expert-level Cisco routing and switching: IOS/NX-OS, BGP, OSPF, EIGRP, VLANs, STP.
- Enterprise firewall administration: Cisco ASA/FTD, pfSense, and Check Point — rule management, segmentation strategy, and change control.
- F5 BIG-IP LTM/GTM: virtual servers, pools, iRules, traffic policies, GTM topology records.
- Cloudflare: DNS management, WAF rulesets, and security policy administration.
- FireMon: policy analysis, rule review workflows, access path validation.
- Deep understanding of TCP/IP, DNS, DHCP, routing/switching protocols, and secure remote access.
- Experience operating in PCI DSS-compliant environments including control implementation and audit evidence collection.
- Strong troubleshooting capabilities with the ability to resolve complex outages under time pressure.
- Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent professional experience.
Benefits:
- Health Insurance
- Paid Time Off
- Flexible Work Arrangements
- Professional Development Opportunities
- Remote Work Options
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