Network Engineer III

CareSource•Dayton, OH

30d•$94,100 - $164,800•Onsite

About The Position

The Network Engineer III is responsible for evaluating, supporting, implementing, and monitoring Network Management Toolsets. They also implement complex multi-site network solutions, lead projects, and serve as an escalation point for the team. This role involves designing and implementing data center switching/routing architectures, managing physical capacity planning, leading data center build-outs, owning the Aruba SD-WAN architecture, leading cloud connectivity initiatives, and serving as the primary network point of contact for cross-functional projects with the Security team. The engineer will also lead root-cause analysis for major incidents, develop network standards, lead and review high-risk changes, and evaluate new technologies.

Requirements

Associates degree is required
Equivalent years of relevant work experience may be accepted in lieu of required education
Seven (7) years of network experience is required
Advanced computer and networking skills
Proficient in Microsoft Office Suite to include Word, Excel and PowerPoint
Excellent written and verbal communication skills
Effective listening and critical thinking skills
Strong interpersonal skills and high level of professionalism
Effective problem solving skills with attention to detail
Ability to work independently and within a team environment
Training/teaching skills
Technical writing skills
Time management skills
Leadership experience and skills
Ability to develop, prioritize and accomplish goals
Expert-level Cisco IOS and Arista EOS skills: advanced routing (OSPF, BGP), spine-leaf/VXLAN-EVPN fabrics, MLAG/vPC
Deep Aruba SD-WAN expertise: Orchestrator policy design, application-aware routing, multi-circuit failover, and SD-WAN-to-data-center integration
Strong understanding of cloud network architecture (AWS/Azure/GCP networking constructs, transit gateways, hybrid routing, BGP over Direct Connect/ExpressRoute)
Strong working knowledge of firewall and security architecture concepts (zones, micro-segmentation, NGFW policy logic, IDS/IPS placement) sufficient to design networks that meet security requirements and to partner effectively with the Security team — not hands-on firewall rule authorship
Proficient with network automation/scripting (e.g., Python, Ansible) for configuration and validation tasks
Strong understanding of data center physical infrastructure design: power redundancy (N+1/2N), cooling architecture, structured cabling standards (e.g., TIA-942), and DCIM tooling
Working knowledge of physical and environmental security controls in data center/co-location facilities (badge access, cameras, environmental sensors) sufficient to coordinate with facilities/security teams and co-location providers, not to manage those systems directly
Strong incident command and root-cause analysis skills across complex, multi-vendor environments
Arista Level (L3) required
Cisco CCNP required

Nice To Haves

Arista Level (L5) preferred
Cisco CCIE preferred or Cisco CCDE preferred

Responsibilities

Design and implement data center switching/routing architectures (Cisco and Arista) including spine-leaf fabrics, MLAG/VXLAN, and inter-DC interconnects
Own physical capacity planning for owned and co-located data centers: rack/power/cooling capacity forecasting, cabinet and cross-connect layout standards, and structured cabling design
Manage relationships and SLAs with co-location providers and circuit/carrier vendors, including contract renewals, remote-hands escalations, and facility maintenance coordination
Lead data center build-outs, expansions, and equipment refresh/lifecycle projects, including coordination of electrical, mechanical, and physical security requirements with facilities and co-location partners
Own the Aruba SD-WAN architecture across the branch portfolio: policy design, QoS, path conditioning, and Orchestrator administration
Lead cloud connectivity initiatives (Direct Connect/ExpressRoute, transit gateways/virtual WANs, cloud routing strategy) in coordination with cloud infrastructure and security teams
Serve as the primary network point of contact for cross-functional projects with the Security team, translating network architecture and traffic requirements into clear inputs for firewall, segmentation, and zero-trust initiatives without performing the security configuration itself
Lead root-cause analysis for major or recurring network incidents and complex multi-domain outages (LAN/WAN/DC/cloud)
Develop network standards, reference architectures, and lifecycle/capacity plans for switching, routing, and SD-WAN platforms
Lead and review changes for high-risk or complex maintenance windows; act as escalation point for Level I/II engineers
Evaluate new technologies and vendor features (Cisco, Arista, Aruba) and provide recommendations to engineering leadership
Perform any other job related duties as requested.