Network Engineer IV

Rackspace US, Inc.; Seattle (WA); Hybrid; USD 120,000 - 170,000; Full time

Job summary

Rackspace US, Inc. is seeking a senior Network Engineer IV to design, architect, and support enterprise networks across multiple data centers. The role emphasizes scalable fabric design (ACI/SDA), complex troubleshooting, and security posture reviews.

You will lead projects, mentor peers, and drive automation using Python and Ansible to ensure policy consistency and rapid deployment across environments. Hybrid work in the Seattle area with on-site as needed.

Qualifications

• 8–11 years of network engineering experience.
• Advanced knowledge of Cisco ACI and data center fabric design.
• Deep understanding of BGP/OSPF and multi-site architectures.
• NAC concepts and enforcement with ForeScout/ ClearPass.

Responsibilities

• Designs scalable, resilient network solutions across routing, switching, fabric, and security domains.
• Leads complex troubleshooting of routing, fabric, and firewall policy conflicts.
• Architects and maintains Cisco ACI and SDA fabrics, including policy and segmentation.
• Manages Cisco and Aruba wireless environments and NAC integration.
• Configures network security and access control policies and accelerates deployment via automation.
• Mentors engineers and participates in on-call rotations.

Skills

Network Architecture

Design & Architecture

Wireless Architecture

Network Automation

Troubleshooting & RCA

Documentation & Diagramming

Process Improvement

Client/Customer Service

Mentoring & Coaching

Education

Bachelor's Degree

High School Diploma or equivalent

Tools

Cisco ACI

Cisco SDA (SD-Access)

Nexus Fabric/ switches

Palo Alto Firewalls

ForeScout NAC

Aruba ClearPass

DNA Center

Job description

The Network Engineer IV is responsible for the design, architecture, engineering, implementation, and support of the Enterprise and multi-datacenter network environment, spanning routing, switching, campus fabric, and network security. Acts as a senior technical resource for troubleshooting and architecting complex network solutions and may serve as a project lead or mentor for other engineers on the team.

Location

• Hybrid in the Seattle/Tacoma, WA area, USA
• Requires on-site work on an as-needed basis

Sponsorship

• This role is not sponsorship eligible.
• Candidates need to be legally allowed to work in the US for any employer.
• This role is not open to holders of an F-1 OPT visa.

Key Responsibilities

• Designs and architects scalable, resilient network solutions across routing, switching, fabric, and security domains
• Leads complex troubleshooting efforts, including routing protocol issues, fabric/switching connectivity, and firewall policy conflicts
• Architects and maintains Cisco ACI fabric environments, including tenant design, endpoint groups, contracts, and fabric integration
• Architects and maintains Cisco SD-Access (SDA) fabric environments, including underlay/overlay design, fabric edge/border/control-plane nodes, and DNA Center-based policy and segmentation
• Architects and maintains Cisco and Aruba enterprise wireless environments, including wireless LAN controllers, orchestrators, and access points with various type of authentication, and their utilization of NAC (ForeScout and Aruba ClearPass)
• Designs, configures, and troubleshoots BGP and OSPF routing environments, including route redistribution, policy control, and multi-site architectures
• Architects highly available switching infrastructure across Nexus, ACI, and SD-Access fabric environments, including VXLAN/EVPN-based segmentation and fabric-based redundancy to eliminate single points of failure
• Configures, maintains, and troubleshoots Palo Alto Networks firewalls, including security policy design, NAT, VPN, and threat prevention
• Designs and manages network access control (NAC) policies and device compliance using Forescout or Aruba Clearpass.
• Serves as an escalation point for high-level, service-impacting network issues
• Identifies, reviews, and recommends security postures to peers and appropriate security teams
• Researches, evaluates, and recommends hardware, software, and vendor solutions based on cost, performance, and business need
• Leads implementation planning prior to installation of network hardware such as routers, firewalls, wireless controllers, and switches
• Develops project plans and task lists for network initiatives, and participates in peer design reviews
• Partners with vendors and third-party providers to evaluate and integrate new equipment and services
• Creates and maintains technical documentation, network diagrams, and standard operating procedures
• Mentors and provides technical guidance to less experienced engineers
• Participates in on-call support rotation per team design
• Architects and implements automation and infrastructure-as-code pipelines (Python, Ansible) to drive configuration consistency, enforce compliance, and accelerate policy deployment across the enterprise network and security fabric

Knowledge

• Advanced knowledge of the design, configuration, installation, maintenance, and upgrade of enterprise network environments
• Advanced knowledge of TCP/IP, OSI model, and switching technologies
• Advanced knowledge of BGP and OSPF design, troubleshooting, and optimization
• Advanced knowledge of Cisco ACI architecture and data center fabric design
• Advanced knowledge of Cisco SD-Access architecture and campus fabric design
• Advanced knowledge of enterprise wireless network architecture, design, maintenance, and troubleshooting
• Strong knowledge of network security architecture, including Palo Alto Networks firewall policy design and segmentation strategies
• Strong knowledge of network access control (NAC) concepts and enforcement using Forescout
• Working knowledge of equipment from multiple vendors, such as Cisco, Juniper, Palo Alto Networks, and Brocade

Skills

• Network Architecture & Design
• Wireless Network Architecture and Design
• Network Automation & Infrastructure-as-Code (Python, Ansible)
• Complex Troubleshooting & Root Cause Analysis
• Network Rack & Patch-Panel Design
• Network Service Monitoring Systems
• Technical Documentation & Network Diagramming
• Process Improvement
• Client/Customer Service
• Coaching & Mentoring

Education

• High School Diploma or regional equivalent required
• Bachelor's Degree required, preferably in a field related to the role. At the manager's discretion, additional relevant experience may substitute for the degree requirement

Certifications

• CCNA or higher required (Routing and Switching, Enterprise, or Data Center track); CCNP or CCIE preferred
• Wireless certifications a plus

Experience

8 - 11 years of experience in the field of the role required

Hashtags

#LI-AW1 #LI-Hybrid

Compensation

Our compensation reflects the cost o