Sr. Micro-Segmentation LAN Network Engineer

Toyota Tsusho Systems; Plano (TX); Hybrid; USD 120,000 - 170,000; Full time

Job summary

Toyota Tsusho Systems US, Inc. in Plano, TX seeks a senior Micro-Segmentation LAN Engineer to design, deploy, and maintain secure, segmented LAN infrastructures across the enterprise.

This hybrid role coordinates with IT, security, and business stakeholders to ensure reliable segmentation delivery with minimal disruption. The ideal candidate has 10+ years in enterprise networking, hands-on Cisco IOS, ACI, and Catalyst Center experience, and a proven ability to lead cross-functional teams through

Qualifications

• Bachelor’s degree in a related field or equivalent experience.
• 10+ years of progressive network engineering experience.
• Strong knowledge of enterprise networking and secure, segmented network design.
• Cisco IOS — implementation experience.
• Cisco ACI — implementation experience.
• Cisco Catalyst Center (DNAC) — implementation and use experience.
• Wireless — implementation experience.
• Experience leading cross-functional teams and communicating with stakeholders.
• Experience supporting deployments and operational activities.

Responsibilities

• Serve as the technical lead for LAN micro-segmentation initiatives.
• Partner with IT, security, network engineering, and business teams to support segmentation requirements and project delivery.
• Lead the deployment, commissioning, and ongoing support of micro-segmentation and LAN network infrastructure.
• Support the design and implementation of secure, resilient network architectures across enterprise LAN environments.
• Ensure segmentation and access-control requirements are incorporated into network solutions, including policy-based segmentation, VLAN design, and access control practices.
• Troubleshoot and resolve complex network issues impacting segmented LAN environments.
• Provide escalation support for network incidents and coordinate issue resolution with internal teams and vendors as needed.
• Assist with network standards, implementation practices, and documentation for micro-segmentation deployments.
• Mentor and train local IT support teams on segmentation fundamentals and troubleshooting.
• Contribute to project planning, cutovers, maintenance activities, and operational readiness.
• Collaborate with stakeholders to translate business requirements into effective, segmented network solutions.

Skills

Enterprise networking

Secure network design

Team collaboration

Network troubleshooting

Mentoring

Education

Bachelor’s degree in computer science, information technology, electrical engineering, or a related field

Tools

Cisco IOS

Cisco ACI

Catalyst Center / DNAC

Wireless

Infoblox

ServiceNow

Monitoring tools

Cisco SDA

Job description

About TTS-US:

Founded in 2011, Toyota Tsusho Systems US, Inc. (TTS-US) is a Toyota groupcompany,that develops IT solutions wherever global businessesoperate. Transforming into a technology and mobility company, TTS-US withit's8 TTS affiliates worldwide isestablishinga secure and resilient Toyota global value chain. The creative capacity to forge such limitless business opportunities is one of the strengths of Toyota TsushoSystems.

PositionSummary:

We are seeking a highly skilled Micro-Segmentation LAN Engineer to support the design, deployment, and ongoing reliability of secure, segmented LAN infrastructure across the enterprise environment. This hybrid role serves as a key technical resource and liaison between IT, security, network engineering, and business stakeholders to ensure segmentation solutions are delivered securely, efficiently, and with minimal disruption to operations. The ideal candidate is a hands-on network professional with strong enterprise networking and segmentation experience, proven ability to design and implement policy-based network access controls, and a collaborative approach to supporting both technical teams and non-technical stakeholders.

Essential Functions:

Description / Essential Functions:

• Serve as the technical lead for LAN micro-segmentation initiatives
• Partner with IT, security, network engineering, and business teams to support segmentation requirements and project delivery
• Lead the deployment, commissioning, and ongoing support of micro-segmentation and LAN network infrastructure
• Support the design and implementation of secure, resilient network architectures across enterprise LAN environments
• Ensure segmentation and access-control requirements are incorporated into network solutions, including policy-based segmentation, VLAN design, and access control practices
• Troubleshoot and resolve complex network issues impacting segmented LAN environments
• Provide escalation support for network incidents and coordinate issue resolution with internal teams and vendors as needed
• Assist with network standards, implementation practices, and documentation for micro-segmentation deployments
• Mentor and train local IT support teams on segmentation fundamentals and troubleshooting
• Contribute to project planning, cutovers, maintenance activities, and operational readiness
• Collaborate with stakeholders to translate business requirements into effective, segmented network solutions

Technology Scope:

Candidates should have experience with a broad mix of enterprise LAN and segmentation technologies, including:

• Enterprise LAN/WAN networks
• Network segmentation and secure network design (micro-segmentation, policy-based access)
• Firewalls and secure connectivity
• VLANs, routing, switching, and redundancy
• Network monitoring and troubleshooting
• Wireless networking
• High availability network design
• Software-defined segmentation and access platforms (e.g., Cisco ACI, SDA, ISE)
• Remote access and secure support patterns

Minimum Qualification:

Required Education & Experience:

• Bachelor’s degree in computer science, information technology, electrical engineering, or a related field preferred or equivalent experience
• 10+ years of progressive network engineering experience
• Strong knowledge of enterprise networking and secure, segmented network design
• Cisco IOS — implementation experience
• Cisco ACI — implementation experience
• Cisco Catalyst Center (formerly DNA Center / DNAC) — implementation and use experience
• Wireless — implementation experience
• Demonstrated ability to support operations and collaborate across IT and cross-functional teams
• Experience troubleshooting complex network issues in high-availability environments
• Strong communication and interpersonal skills, with the ability to work effectively with technical and non-technical stakeholders and build strong business relationships
• Experience supporting deployments, maintenance windows, cutovers, and operational support activities
• Ability to train and mentor support personnel and operational teams
• Strong ownership mindset and ability to drive tasks through completion

Preferred Qualifications:

• Cisco SDA — implementation and support experience
• Firewall experience of any type
• Cisco ISE — experience of any type
• WAN — experience of any type
• Infoblox (or a comparable tool) — experience using it for static IP and DHCP reservations
• Private Cellular — experience of any type
• ServiceNow — experience using this tool
• Monitoring Tools — experience designing or configuring monitoring alerts for Operations
• Certifications such as CCNA, CCNP, CISSP, or other networking/security credentials
• Experience developing network standards, deployment procedures, or architecture guidance for segmented LAN environments

Position Type/Expected Hours of Work:

• Hybrid work environment (Plano, TX) - onsite presence required to support deployments, change windows, and in-person collaboration; remote otherwise
• Contract-to-hireposition
• Schedule: Willing to work off hours as needed to support implementations during approved change windows.

Travel:

• This position requires up to 10% travel