Network Infrastructure Engineer (23587)

Sumitomo Rubber North America; Rancho Cucamonga (CA); Hybrid; USD 118,450 - 169,950; Full time

Job summary

Sumitomo Rubber North America is seeking a Network Engineer for their Corporate Headquarters in Rancho Cucamonga, CA. This role involves designing, implementing, and maintaining the organization's network infrastructure to ensure secure and reliable connectivity.

The ideal candidate will have 5-7 years of experience in network roles, a Bachelor’s degree in a related field, and strong knowledge of networking fundamentals. The position allows for a hybrid work schedule after the first month, blending in-office and remote work.

Qualifications

• 5 to 7 years of experience in network administration or engineering roles.
• Strong knowledge of VLANs and subnetting.
• Solid understanding of network security concepts.

Responsibilities

• Design, implement, and support LAN and WAN.
• Manage and optimize wireless networking.
• Develop scalable and secure network architecture.

Skills

Networking fundamentals

TCP/IP

Routing

Switching

VPNs

Scripting (Python)

Problem-solving

Education

Bachelor’s degree in Computer Science or Information Technology

Tools

Cisco routers and switches

Palo Alto firewalls

Cisco Meraki environments

AWS

Azure

Job description

Job Location: Corporate Headquarters - Rancho Cucamonga, CA 91730

Salary Range: $118,450.00 - $169,950.00

The Network Engineer is responsible for the design, implementation, maintenance, and ongoing support of the organization’s network infrastructure to ensure secure, reliable, and high-performance connectivity. This role manages LAN, WAN, wireless, and cloud-based networking environments; diagnoses and resolves complex network issues; and partners with cross-functional teams to support business operations and strategic growth. The Network Engineer is accountable for maintaining network availability, optimizing performance, ensuring security compliance, and proactively identifying opportunities to enhance and modernize the infrastructure.

Responsibilities

• Design, implement, and support Local Area Networks (LAN) and Wide Area Networks (WAN)
• Manage and optimize wireless networking environments
• Develop and maintain scalable, secure network architecture
• Configure and support Palo Alto firewalls and security platforms
• Administer VPN solutions (site-to-site and remote access)
• Perform network administration, monitoring, and troubleshootingManage Cisco Meraki environments and Cisco switching infrastructure
• Support overall IT infrastructure and cloud networking integration
• Configure and maintain firewalls, routing, and switching protocols
• Implement and maintain network configuration standards and best practices
• Ensure network security, compliance, and performance optimization

Location Requirements

Candidates must reside in California and within reasonable distance to our corporate office, Rancho Cucamonga, CA.

Schedule

8:00am - 5:00pm (core business hours). Managers may adjust schedule as needed based on business needs.

After your first 30 days onsite, you'll transition to our hybrid schedule: In-office: Monday, Tuesday, Thursday; Remote: Wednesday, Friday.

Qualifications

• Minimum of five (5) to seven (7) years of progressive experience in network administration or network engineering roles.
• Bachelor’s degree in Computer Science, Information Technology, or a related technical discipline, or an equivalent combination of education and relevant experience.
• Strong knowledge of networking fundamentals, including TCP/IP, routing, switching, VLANs, and subnetting.
• Proven experience configuring and supporting network hardware such as routers, switches, and firewalls.
• Solid understanding of network security concepts, including VPNs and access control lists (ACLs).
• Proficiency in scripting languages (e.g., Python) for automation and process improvement.
• Demonstrated troubleshooting, analytical, and problem-solving skills.
• Working knowledge of cloud platforms such as AWS and Azure, as well as Linux operating systems.
• Occasional overnight travel may be required.