Senior Network Engineer

Insight Global (United States); San Jose (CA); On-site; USD 120,000 - 170,000; Full time

Job summary

Insight Global in the United States is seeking a Senior Network Engineer to design, implement, and sustain enterprise network infrastructure. You will work with Cisco Catalyst/Nexus, Meraki wireless, ASA/Firepower, and ISE to enforce security and reliability across LAN, WAN, and wireless domains.

The role requires hands-on expertise with routing protocols, security best practices, and network design, plus mentoring of junior engineers.

Qualifications

• 5+ years of hands-on Cisco networking experience.
• Expert-level knowledge of Catalyst switch configuration and management.
• Extensive experience with routing protocols: OSPF, BGP, EIGRP; WAN design.
• Hands-on with Cisco ASA/Firepower and Meraki wireless infrastructure.

Responsibilities

• Design, configure, and maintain Cisco switch infrastructures.
• Implement and troubleshoot routing protocols (OSPF/BGP/EIGRP) and static routes.
• Deploy Meraki wireless solutions and manage access points/controllers.
• Configure Cisco ASA firewalls and Firepower appliances.
• Implement network security policies using Cisco ISE.
• Monitor performance and optimize traffic across LAN/WAN/WLAN.
• Maintain network documentation, diagrams, and SOPs; mentor junior engineers.

Skills

Cisco IOS/IOS-XE/NX-OS

Routing protocols (OSPF/BGP/EIGRP)

Meraki wireless solutions

Cisco ASA / Firepower

Network security best practices

LAN/WAN design

VLANs/STP/HSRP/VRRP/QoS

DNS/DHCP/IP fundamentals

Python/Ansible (automation)

Network monitoring (SolarWinds/PRTG)

Education

Bachelor's degree in Network Engineering or Computer Science

CCNP Enterprise or CCNP Security or higher

Tools

SolarWinds

PRTG

Job description

Job Description

Position Overview:

We are seeking an experienced Senior Network Engineer to design, implement, and maintain our enterprise network infrastructure. The ideal candidate will have extensive hands‑on experience with Cisco technologies and advanced routing protocols, along with strong security and wireless networking expertise.

Key Responsibilities:

• Design, configure, and maintain Cisco Catalyst and Nexus switch infrastructuresImplement and troubleshoot advanced routing protocols including OSPF, BGP, EIGRP, and static routingDeploy and manage Meraki wireless solutions including access points, controllers, and wireless security policiesConfigure and maintain Cisco ASA firewalls and Firepower security appliancesImplement network security policies and access controls using Cisco ISE (Identity Services Engine)Monitor network performance and optimize traffic flow across LAN, WAN, and wireless networksPerform network capacity planning and scalability assessmentsTroubleshoot complex network issues and provide root cause analysisMaintain network documentation, diagrams, and standard operating proceduresCollaborate with security teams on network segmentation and compliance requirementsMentor junior network engineers and provide technical guidance

Technical Skills:

• Cisco IOS/IOS-XE/NX-OS command line proficiencyNetwork design and architecture planningLayer 2/3 switching and routing protocolsWireless networking standards (802.11 a/b/g/n/ac/ax)Network security implementation and troubleshootingTCP/IP, DNS, DHCP, and other core networking protocols

Skills and Requirements

Required Qualifications:

• Bachelor's degree in Network Engineering, Computer Science, or related field5+ years of hands‑on experience with Cisco networking technologiesExpert-level knowledge of Cisco Catalyst switch configuration and managementProficient with Cisco Nexus data center switching platformsExtensive experience with routing protocols: OSPF, BGP, EIGRPHands‑on experience with Cisco ASA firewalls and Firepower security modulesExperience deploying and managing Meraki wireless infrastructureStrong understanding of network security principles and best practicesExperience with VLANs, STP, HSRP/VRRP, and QoS implementationPreferred Qualifications:

Preferred Qualifications:

• Cisco ISE implementation and policy management experienceCurrent Cisco certifications (CCNP Enterprise, CCNP Security, or higher)Experience with network automation and scripting (Python, Ansible)Knowledge of SD-WAN technologiesFamiliarity with network monitoring tools (SolarWinds, PRTG, etc.)Experience in enterprise or service provider environments

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal employment opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment without regard to race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request to [e-mail].