Senior Network Infrastructure Operations Lead

Buchanan Technologies, Inc.; Dallas (TX); On-site; USD 100,000 - 130,000; Full time

Job summary

Buchanan Technologies, Inc. is seeking a skilled Senior Network Infrastructure Operations Lead based in Dallas, Texas. This role focuses on engineering and operational leadership for a global enterprise network environment.

The ideal candidate will possess deep expertise in enterprise networking, with a strong emphasis on troubleshooting and operational improvement. Responsibilities include maintaining network performance, leading initiatives, and mentoring junior engineers.

Qualifications

• Proven experience serving as a senior or lead network engineer in a global or multi-site organization.
• Strong hands-on experience with enterprise networking technologies.
• Deep understanding of network protocols and technologies.

Responsibilities

• Design, implement, and maintain enterprise network infrastructure.
• Lead network architecture initiatives and technology evaluations.
• Perform advanced troubleshooting for complex network issues.
• Create and maintain high-quality network documentation.
• Mentor junior network engineers.

Skills

Cisco networking technologies

Cisco ISE or comparable network access control platforms

Meraki infrastructure

Fortinet firewalls and security solutions

Arista switches and wireless access points

BGP

OSPF

DHCP

DNS

TACACS

RADIUS

VPN technologies

SD-WAN

Enterprise Wi-Fi design and troubleshooting

Packet capture and inspection tools

Education

8+ years of progressive enterprise network engineering experience

Tools

Terraform

Python

Ansible

Job description

Senior Network Infrastructure Operations Lead

Senior Network Infrastructure Operations Lead

Position Summary

Buchanan Technologies is seeking a highly skilled Senior Network Infrastructure Operations Lead. This resource will serve as the technical lead for a global enterprise network environment, combining hands‑on engineering, architecture, operational leadership, and team mentorship responsibilities.

The ideal candidate will have deep technical expertise across enterprise networking technologies, strong troubleshooting and analytical skills, and experience leading network modernization, standardization, and operational improvement initiatives. This role will be critical in supporting the stability, security, scalability, and performance of a geographically distributed network environment.

This is a highly hands‑on role requiring both strategic thinking and operational execution.

Key Responsibilities

Network Engineering & Architecture

• Design, implement, maintain, and optimize enterprise network infrastructure across a global multi‑office environment.
• Lead network architecture initiatives, technology evaluations, and standardization efforts.
• Design and support secure connectivity solutions, including SD‑WAN, VPN, cloud networking, and site‑to‑site connectivity.
• Develop scalable network strategies supporting Microsoft Azure and cloud‑hosted enterprise services.
• Drive continuous improvement of network reliability, resiliency, and security posture.

Operational Support & Incident Response

• Maintain operational ownership of enterprise network infrastructure, including switches, firewalls, wireless networks, and core routing.
• Perform advanced troubleshooting and root cause analysis for complex network and connectivity issues.
• Respond quickly and effectively during critical outages or service‑impacting incidents.
• Serve as an escalation point for major incidents and high‑priority troubleshooting efforts.
• Participate in occasional after‑hours escalation support as required.
• Lead and mentor a small offshore team of junior‑to‑mid‑level network engineers.
• Coordinate operational activities to support effective global coverage outside of U.S. business hours.
• Establish operational procedures, standards, and documentation practices.
• Foster accountability, technical growth, and strong customer service within the network engineering function.
• Collaborate with technical peers to support cross‑functional infrastructure, security, and cloud initiatives.

Security & Infrastructure Integration

• Manage firewall architecture, policy design, implementation, and troubleshooting.
• Support enterprise authentication and access control technologies, including TACACS, RADIUS, and Cisco ISE.
• Partner with infrastructure, security, cloud, and application teams to support enterprise initiatives.
• Ensure network configurations align with security and compliance standards.

Documentation & Process Improvement

• Create and maintain high‑quality network diagrams, operational documentation, standards, and procedures.
• Develop repeatable deployment and troubleshooting processes.
• Identify automation opportunities and operational efficiencies where appropriate.

Required Skills & Experience

• 8+ years of progressive enterprise network engineering experience.
• Proven experience serving as a senior or lead network engineer in a global or multi‑site organization.
• Strong hands‑on experience with:
  • Cisco networking technologies
  • Cisco ISE or comparable network access control platforms
  • Meraki infrastructure
  • Fortinet firewalls and security solutions
  • Arista switches and wireless access points
• Deep understanding of:
  • BGP
  • OSPF
  • DHCP
  • DNS
  • TACACS
  • RADIUS
  • VPN technologies
  • SD‑WAN
  • Enterprise Wi‑Fi design and troubleshooting
  • Packet capture and inspection tools
• Experience supporting cloud networking environments, especially Microsoft Azure.
• Experience supporting hybrid cloud connectivity and enterprise WAN architectures.
• Strong troubleshooting methodology and ability to think critically under pressure.
• Ability to communicate effectively with technical and non‑technical stakeholders.
• Excellent documentation and organizational skills.
• Experience leading technical projects and influencing network direction.

Preferred Skills

• Experience with Oracle Cloud Infrastructure.
• Familiarity with automation and scripting tools such as Terraform, Python, or Ansible.
• Experience working in financial services, private equity, or similarly regulated environments.
• Prior experience leading distributed or offshore technical teams.

Education

• Remote role.
• Candidates must be available during standard U.S. business hours.
• Occasional after‑hours support may be required for major incidents or escalations.
• Candidates in the Dallas‑Fort Worth area are preferred.
• Limited domestic travel may be required, expected to be less than 10%.