Network Engineer III

Gravity IT Resources; Charlotte (NC); On-site; USD 83,000 - 131,000; Part time

Job summary

Gravity IT Resources is seeking a Network Engineer III to support the implementation, modernization, and management of critical network infrastructure across multiple locations. You will configure, test, troubleshoot, and document Cisco-based solutions while working in an Agile team to ensure reliable, secure network operations for substations, corporate offices, and other essential sites.

The role emphasizes hands-on configuration of Cisco routers/switches, SD-WAN deployment, WAN modernization,

Qualifications

• High school diploma or GED.
• 5 years hands-on enterprise experience.
• Experience with configuring, implementing, or supporting Cisco routers and switches.
• Solid understanding of IPv4, subnetting, TCP/IP, VLANs, IEEE 802.1Q trunks, Spanning Tree Protocol, and link aggregation.
• Working knowledge of OSPF, BGP, enterprise WAN concepts, and route selection.
• Ability to troubleshoot Layer 2 and Layer 3 connectivity issues using a structured approach.
• General understanding of wireless, firewall, access control, and network segmentation technologies.
• Working knowledge of copper and fiber cabling standards and connector types.
• Ability to create and maintain accurate technical documentation and network diagrams.
• Strong attention to detail and ability to follow engineering, cybersecurity, and change management processes.
• Effective written, verbal, interpersonal, and teamwork skills.

Responsibilities

• Configure, implement, test, and support Cisco routers, switches, wireless access points, and related infrastructure using established standards.
• Deploy and support Cisco Catalyst SD-WAN solutions, including WAN edge routers, transport connectivity, segmentation, centralized policies, and application-aware routing.
• Support WAN modernization efforts across SD-WAN, MPLS, private Ethernet, internet, cellular, and other WAN services.
• Troubleshoot routing, switching, SD-WAN, wireless, WAN connectivity, firewall policies, and Layer 2/Layer 3 communication issues.
• Implement and validate network resiliency, segmentation, failover, quality of service, and high-availability features.
• Prepare engineering job packages with equipment lists, installation instructions, implementation and test plans, rollback procedures, and supporting documentation.
• Create and maintain physical and logical network diagrams, rack elevations, wiring diagrams, layouts, and power drawings using Microsoft Visio.
• Ensure monitoring, alarming, logging, asset records, and operational documentation are complete before solutions go into service.
• Coordinate, activate, test, and troubleshoot private and public WAN circuits.Monitor implementation work for compliance with engineering standards, cybersecurity, regulations, and procedures.
• Support network automation using Python, Ansible, REST APIs, Git, or similar scripting tools.
• Collaborate with engineering, operations, cybersecurity, vendors, and business partners.
• Follow formal change management procedures, including impact analysis, peer review, approvals, validation, rollback planning, and documentation.
• Participate in planned implementations, maintenance, and troubleshooting outside normal hours as needed.
• Work within an Agile environment on team-based projects and assignments.

Skills

Cisco routers

Cisco switches

IPv4/subnetting

TCP/IP

VLANs

OSPF

BGP

SD-WAN

Troubleshooting

Documentation

Agile teamwork

Change management

Python scripting

Education

High school diploma or GED

Tools

Cisco IOS

Cisco IOS-XE

Cisco Catalyst SD-WAN

SolarWinds

Opengear

Visio

PowerShell

SNMP

Job description

Job Title: Network Engineer III

Location Requirements: On-Site

Job Type: Contract

Role Overview

You will support the implementation, modernization, and management of critical network infrastructure across multiple locations. This hands‑on role involves configuring, testing, troubleshooting, and documenting network solutions using Cisco technologies. You will work independently and as part of an Agile team to ensure reliable, secure, and efficient network operations, supporting substations, corporate offices, and other essential sites.

Responsibilities

• Configure, implement, test, and support Cisco routers, switches, wireless access points, and related infrastructure using established standards.
• Deploy and support Cisco Catalyst SD-WAN solutions, including WAN edge routers, transport connectivity, segmentation, centralized policies, and application-aware routing.
• Support WAN modernization efforts across SD-WAN, MPLS, private Ethernet, internet, cellular, and other WAN services.
• Troubleshoot routing, switching, SD-WAN, wireless, WAN connectivity, firewall policies, and Layer 2/Layer 3 communication issues.
• Implement and validate network resiliency, segmentation, failover, quality of service, and high-availability features.
• Prepare engineering job packages with equipment lists, installation instructions, implementation and test plans, rollback procedures, and supporting documentation.
• Create and maintain physical and logical network diagrams, rack elevations, wiring diagrams, layouts, and power drawings using Microsoft Visio.
• Ensure monitoring, alarming, logging, asset records, and operational documentation are complete before solutions go into service.
• Coordinate, activate, test, and troubleshoot private and public WAN circuits.Monitor implementation work for compliance with engineering standards, cybersecurity, regulations, and procedures.
• Support network automation using Python, Ansible, REST APIs, Git, or similar scripting tools.
• Collaborate with engineering, operations, cybersecurity, vendors, and business partners.
• Follow formal change management procedures, including impact analysis, peer review, approvals, validation, rollback planning, and documentation.
• Participate in planned implementations, maintenance, and troubleshooting outside normal hours as needed.
• Work within an Agile environment on team-based projects and assignments.

Required Qualifications

• High school diploma or GED.
• 5 years hands-on experience in an enterprise environment.
• Ability to successfully complete required background screening.
• Demonstrated experience with configuring, implementing, or supporting Cisco routers and switches.
• Solid understanding of IPv4, subnetting, TCP/IP, VLANs, IEEE 802.1Q trunks, Spanning Tree Protocol, and link aggregation.
• Working knowledge of OSPF, BGP, enterprise WAN concepts, and route selection.
• Ability to troubleshoot Layer 2 and Layer 3 connectivity issues using a structured approach.
• General understanding of wireless, firewall, access control, and network segmentation technologies.
• Working knowledge of copper and fiber cabling standards and connector types.
• Ability to create and maintain accurate technical documentation and network diagrams.
• Strong attention to detail and ability to follow engineering, cybersecurity, and change management processes.
• Effective written, verbal, interpersonal, and teamwork skills.
• Ability to work productively with limited supervision.
• Willingness and ability to support scheduled work outside normal hours.

Desired Qualifications

• Cisco CCNA, CCNP Enterprise, CCNP Security, or comparable experience.
• Experience with Cisco Catalyst platforms and Cisco IOS or IOS‑XE.
• Experience deploying, migrating, supporting, or troubleshooting Cisco Catalyst SD‑WAN.
• Advanced knowledge of OSPF and BGP, including path selection, filtering, summarization, and redistribution.
• Experience with VRFs, MPLS Layer 3 VPNs, DMVPN, IPsec, quality of service, route maps, prefix lists, access control lists, and BGP communities.
• Experience with Cisco Catalyst Center, Cisco ISE, Cisco ACI, or controller-based wireless technologies.
• Experience with Palo Alto Networks firewalls or Cisco Secure Firewall.
• Experience using Python, Ansible, REST APIs, Git, PowerShell, Bash, or similar for network automation.
• Experience with SolarWinds, BlueCat IPAM, Opengear terminal servers, SNMP, syslog, NetFlow, or packet analysis tools.
• Experience preparing engineering job packages, implementation plans, test plans, rollback plans, equipment lists, and network diagrams.
• Ability to develop prompts leveraging generative AI tools for business outcomes.
• Experience with SCADA communications, operational technology networks, substations, control centers, regulated utilities, or critical infrastructure.
• Experience with Jira, Agile methodologies, and formal change management processes.
• Self-directed, organized, collaborative, and willing to learn new technologies.

Equal Employment Opportunity Statement

Gravity IT Resources is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all employees and applicants. We do not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, veteran status, or any other legally protected characteristic. All employment decisions are based on qualifications, merit, and business needs.