Senior Cisco Engineer

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🕒 November 19, 2025

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Castillians

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2006

Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone.

📋 Description

• Design, and document scalable, secure, and highly available network solutions using Cisco technologies to meet business objectives • Plan and execute complex network implementations, including data center, WAN, LAN, and wireless deployments • Lead network migration projects with minimal downtime, including hardware/software upgrades and topology changes • Provide Tier 3/4 escalation support for complex network issues, performing root cause analysis and implementing permanent solutions • Proactively monitor network performance and health, utilizing tools like SolarWinds, PRTG, or Cisco DNA Center • Manage and maintain all network hardware and systems, including routers, switches, firewalls, and wireless controllers • Configure and manage security appliances, including Cisco ASA/Firepower firewalls and ISE for network access control • Implement and maintain VPN solutions

🎯 Requirements

• 5+ years of experience in designing, deploying, and managing enterprise-level Cisco networks • Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent work experience • Certifications: CCNP Enterprise or CCNP Data Center required; CCIE highly preferred • Expert-level knowledge of Cisco IOS, IOS-XE, and NX-OS • Strong hands-on experience with Cisco Catalyst/Nexus switches, ASR/ISR routers, and wireless (Meraki, Aironet) platforms • In-depth understanding of core networking protocols (TCP/IP, BGP, OSPF, EIGRP, MPLS, VRF, VPC) • Proven experience with network security: Cisco ASA/Firepower, Firepower Threat Defense (FTD), and Cisco Identity Services Engine (ISE) • Solid experience with data center technologies: VXLAN, ACI, and Cisco UCS • Proficiency with network monitoring and management tools (e.g., SolarWinds, Cisco DNA Center, Wireshark)

🏖️ Benefits

• Clear scope with no ambiguity over deliverables • Opportunity for repeat engagements based on performance