Network Engineer III (Aruba, Cisco, Meraki)

Network Engineer III (Aruba, Cisco, Meraki) Job Locations: US-DFW/Fort Worth/North Texas Position Type: Regular Full-Time Requisition ID: 2026-7382 Category: Customer Service/Support Company Overview C1: 1 Contact, 1 Connection, 1 Choice C1 is the foremost, single-source provider of advanced communications and data technology for business. That means if it's digital, we connect our customers to it—from phone systems and hardware to computer networks, application development, managed solutions and more. We’re 100% passionate about designing, implementing, managing and supporting our customers’ every need from end to end, so that they can focus on what they do best. Overview The Network Engineer III position provides IT infrastructure engineering for network upgrades, changes, troubleshooting, relocation and migrations. We are seeking a highly skilled Senior Network Engineer with deep expertise in Aruba networking technologies, including routing, switching, wireless infrastructure and network access control. This role is responsible for the design, implementation, optimization and support of enterprise network environments leveraging Aruba solutions across campus, data center and edge locations. Responsibilities Design, deploy and maintain enterprise‑grade Aruba network infrastructure across routing, switching and wireless domains. Configure and support ArubaOS‑CX based switching platforms and Aruba routing/gateway solutions. Implement and manage Aruba wireless environments using ArubaOS (AOS 8/10) and Aruba Central for cloud‑based management. Lead network architecture initiatives, including high availability, segmentation and performance optimization. Administer and optimize Aruba ClearPass Policy Manager for Network Access Control (NAC), including 802.1X authentication, role‑based access and device profiling. Troubleshoot complex network issues across Layer‑2 to Layer‑7, including wireless RF optimization and client connectivity. Perform firmware upgrades, patching and lifecycle management across all Aruba devices. Collaborate with security teams to enforce network access policies and segmentation strategies. Maintain documentation for network configurations, diagrams and operational procedures. Provide escalation support and mentorship to junior engineers. Qualifications Must have extensive knowledge of high performance data center solutions, network infrastructure LAN/WAN, network security and enterprise wireless infrastructures. Expert knowledge of Cisco routers (ISRGEN1/2), switches (including NEXUS and Catalyst lines), security appliances (ASA, ISE, IPS, Prime MARS, NAC) is a strong plus. Expert knowledge of WAN circuits, MPLS, EIGRP, OSPF, BGP, RIP, FR/ATM, ACLs, TCP/IP, IPX. Extensive experience designing, implementing and troubleshooting VLANs using Cisco equipment, including intimate knowledge of Spanning Tree Protocol, VLAN Trunking Protocol, inter‑VLAN routing, IPv6 and trunking with ISL and 802.1q. Strong knowledge of VPN IPSec/SSL solutions and hands‑on deployment experience. Knowledge of load balancing for web systems and e‑commerce uses. In‑depth knowledge of Cisco IOS, NXOS and other technical configurations. Experience with monitoring, alerting and management tools such as Ethereal, SolarWinds, Orion Network Monitor, HP OpenView. Hands‑on experience with wired/wireless ISE deployments, ASA, Firepower, AMP, Prime Infrastructure, security posture assessment and policy generation is a strong plus. Nexus experience with 9K, 7K, 5K, 2K, 1K. Cisco experience with 4507s‑VSS, 3750s, 2960s, MPLS, VPLS, PSTN, LAN. Strong customer‑facing skills. Ability to work under pressure. Experience with F5 is a plus. Cisco Certified Systems Engineer (CCIE) in any discipline. 7+ years of enterprise networking experience. Bachelor’s degree in Computer Science, Information Technology or related field (or equivalent experience). Aruba certifications preferred (ACMP, ACDP, ACMX). Strong analytical, troubleshooting and documentation skills. Experience working in large‑scale, multi‑site enterprise environments. Aruba certifications (ACMP, ACDP, ACMX) are preferred. 10+ years hands‑on experience in WAN/LAN technologies. Automation and scripting knowledge (Python, Ansible, REST APIs). Familiarity with VMware NSX or cloud networking (AWS/Azure). Experience integrating with security platforms (firewalls, SIEM). SD‑WAN (Aruba EdgeConnect) experience. Experience with F5 or other application delivery controllers. Strong analytical and documentation skills. CCIE certification preferred. Aruba Experience Strong experience with Aruba switching platforms running ArubaOS‑CX. Proficiency with Aruba wireless solutions running ArubaOS (AOS8.x/AOS10). Experience with Aruba Central for cloud‑based network management and monitoring. Advanced knowledge of routing protocols (OSPF, BGP), VLANs, VRFs and multicast. Deep understanding of wireless technologies (802.11ac/ax, RF design, roaming optimization). Hands‑on experience with Aruba ClearPass Policy Manager (NAC) including 802.1X authentication (EAP‑TLS, PEAP), RBAC, guest access and onboarding, device profiling and posture assessment. Preferred Aruba Hardware Experience Switching (Aruba CX Series) Aruba CX 6300 Series (access layer) Aruba CX 6400 Series (modular campus core/aggregation) Aruba CX 8325 / 8360 Series (data center/core switching) Wireless Access Points Aruba AP‑515 / AP‑535 (Wi‑Fi6) Aruba AP‑635 (Wi‑Fi6E) Aruba AP‑565 (outdoor deployments) Mobility Controllers / Gateways Aruba 7200 Series Mobility Controllers Aruba 7000 Series Branch Gateways Aruba 9000 Series Gateways Routing / Edge Devices Aruba EdgeConnect (SD‑WAN, formerly Silver Peak) Aruba Branch Gateways with integrated routing and SD‑WAN capabilities Additional Information Benefits 401(k) plan (35% employer match per dollar up to 10% employee contribution) Medical coverage (UnitedHealthcare, Reference Based Pricing, Kaiser) RX home delivery HSA with employer contribution In‑vitro fertilility (treatment coverage) Dental and vision plans FSA plans (healthcare, dependent care, limited purpose) Pre‑tax commuter plans Employer‑paid life insurance, short/long‑term disability Paid parental leave (4 weeks at 100%) Employee assistance plan Voluntary life, accidental death and legal/ID theft plans TeleHealth and wellness via Omada Health Travel assistance and business travel accident coverage Medical for foreign travel coverage Employer‑paid pet Telehealth, accident insurance, critical illness insurance, hospital indemnity insurance Volunteer time off 10 holidays Summer sizzle events On‑Demand pay (daily pay) Work Environment Ability to handle multiple priorities and demands in a fast‑paced environment. This job operates in a professional office environment and uses standard office equipment such as computers, phones, photocopiers and filing cabinets. Physical Environment Physical demands described here are representative of those that must be met by a team member to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Other Duties/Changes This job description is not designed to cover or contain a comprehensive listing of all duties, responsibilities or activities that are required of a team member for this job. Duties, responsibilities and activities may change at any time with or without notice. At any point in time, the essential functions and primary duties associated with this position will be the principal, major or most important duties, responsibilities and activities that the employee is expected to perform as determined and directed by C1. EEO Statement C1 provides equal employment opportunities (EEO) to all team members and applicants for employment. All qualified applicants will receive consideration for employment, and all team members will be treated with respect to their employment, without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity, disability or veteran status. For further details, please view the EEO Policy Statement and the current version of the workplace poster. Pay Range $130,000 – $155,000. Base pay is based on education, experience, location, certifications, skill set and other relevant factors. Incentive/variable pay opportunities are in addition to base pay. E‑Verify E‑Verify. Right to Work Right to Work poster. #LI-SA1 #J-18808-Ljbffr