Senior Network Engineer (ACI)

Rackspace Technology

Responsibilities

• Design, implement, and optimize Cisco ACI fabric environments, including application network profiles, endpoint groups, and contracts
• Configure and manage traditional Cisco IOS-based networking equipment, including routers, switches, and firewalls
• Develop and maintain network architecture documentation, including detailed network diagrams, configurations, and standard operating procedures
• Lead network migrations, upgrades, and expansion projects with minimal disruption to business operations
• Troubleshoot complex network issues across both ACI and traditional network environments
• Implement and maintain network security policies, protocols, and best practices
• Perform regular network audits and optimization to ensure optimal performance, security, and reliability
• Establish network monitoring solutions and respond to alerts to maintain high network availability
• Provide technical guidance and mentorship to junior network engineers
• Create and maintain disaster recovery plans for network infrastructure
• Participate in after-hours on-call rotation for critical network support

Requirements

• Bachelor's degree in Computer Science, Information Technology, or related field
• 8+ years of experience in network engineering roles, with at least 5 years focused on Cisco technologies
• Proven experience implementing and managing Cisco ACI environments
• Deep understanding of Cisco IOS configuration and troubleshooting
• Strong knowledge of networking protocols and concepts (TCP/IP, OSPF, BGP, EIGRP, VLANs, VRF, etc.)
• Current Cisco certifications (CCIE preferred)
• Proficiency in implementing and managing network security solutions
• Strong analytical and problem-solving skills
• Excellent communication skills, both written and verbal
• Ability to work effectively under pressure and manage multiple priorities

Additional Skills (Good to have)

• Experience with other SDN solutions beyond Cisco ACI (e.g. VMware NSX)
• Experience with network automation tools and scripting (Python, Ansible, etc.)
• Knowledge of cloud networking
• Familiarity with containerization technologies (Docker, Kubernetes)
• Experience with CI/CD pipelines for network automation
• Understanding of DevOps practices and tools
• ITIL certification or experience with ITIL frameworks
• Experience with network performance analysis tools
• Familiarity with load balancers and application delivery controllers
• Experience with SD-WAN technologies