Network Engineer III - Must be in the Dayton Area

CareSource; Dayton (OH); On-site; USD 94,100 - 164,800; Full time

Job summary

CareSource in Dayton, OH is seeking a Network Engineer III to design, implement, and manage complex data center and cloud-network architectures across multiple sites. You will evaluate and monitor toolsets, lead projects, and serve as a senior escalation point for the team.

The role requires seven years of network experience, expert Cisco/Arista skills, and strong automation capabilities. A leadership mindset and collaborative approach are essential for success in this role.

Qualifications

• Associate’s degree required.
• Seven (7) years of network experience required.
• Expert-level Cisco IOS and Arista EOS skills: advanced routing (OSPF, BGP), spine‑leaf/VXLAN‑EVPN fabrics, MLAG/vPC.
• Strong knowledge of data center architectures, SD-WAN, and cloud networking concepts.
• Proficient with network automation/scripting (Python, Ansible).
• Experience with firewall and security concepts beneficial.

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 data centers: rack/power/cooling forecasting and cabling standards.
• Manage relationships with co‑location providers and carriers, including SLAs and renewals.
• Lead data center build‑outs, expansions, and lifecycle projects coordinating facilities and security requirements.
• Own Aruba SD‑WAN architecture across the branch portfolio and policy design.
• Lead cloud connectivity initiatives (Direct Connect/ExpressRoute) with cloud/security teams.
• Serve as primary network contact for cross‑functional projects with Security, translating inputs for firewall and segmentation.
• Lead root‑cause analysis for major incidents and multi‑domain outages.

Skills

Network design

Project leadership

Vendor management

Communication

Team collaboration

Python automation

Ansible

OSPF/BGP

Arista EOS

Cisco IOS

Education

Associate’s degree

Tools

Cisco IOS

Arista EOS

Python

Ansible

Job description

Job Summary

The Network Engineer III is responsible for evaluating, supporting, implementing and monitoring Network Management Toolsets, implementing complex multi‑site network solutions, leading projects, and serving as an escalation point for the team.

Essential Functions

• 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, coordinating 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 LevelI/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.

Education and Experience

• Associate’s degree required; equivalent years of relevant work experience may be accepted.
• Seven (7) years of network experience required.

Competencies, Knowledge and Skills

• Advanced computer and networking skills.
• Proficient in Microsoft Office Suite (Word, Excel, 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 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 partner effectively with the Security team.
• 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.
• Strong incident command and root‑cause analysis skills across complex, multi‑vendor environments.

Licensure and Certification

• Arista Level(L3) required.
• Arista Level(L5) preferred.
• Cisco CCNP required.
• Cisco CCIE preferred.
• Cisco CCDE preferred.

Working Conditions

General office environment; may require sitting or standing for extended periods. May require working additional hours and/or outside normal business hours to meet deadlines. Regular movement between multiple building sites will be required. Must be willing to work a flexible schedule to support changing and emerging physical security protection situations. Reside in the same territory assigned, with exceptions possible for business need. Up to 15% occasional travel may be required to different locations.

Compensation Range

$94,100.00 – $164,800.00 per year. Base compensation may be supplemented with bonuses tied to company and individual performance. A comprehensive total rewards package is offered.

CareSource takes into consideration a combination of a candidate’s education, training, and experience, as well as the position’s scope and complexity, discretion and latitude required for the role, and other external and internal data when establishing a salary level.

Other Information

This job description is not all inclusive. CareSource reserves the right to amend this job description at any time.

CareSource is an Equal Opportunity Employer. We are dedicated to fostering an environment of belonging that welcomes and supports individuals of all backgrounds.