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Senior Network & Security Engineer (Cisco ASA, Nexus, ISE, Cloud)

ace stackSan Jose, CA

today

Occupations

Network and Computer Systems AdministratorsComputer Network ArchitectsComputer Systems Engineers/Architects

Industries

Computer Systems Design ServicesOther Computer Related ServicesComputer Facilities Management Services
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About the role

Senior Network & Security Engineer
Duration: 12 Months Contract Location: San Jose, CA (Onsite)
Top 3 Skills: CISCO ASA and ISE FirePower (FTD)CISCO Catalyst & Nexus 9xSeries (CLI and Automation) CCNP Certification Experience in setting up Cloud Tech (AWS, Azure GCP) on an existing Network. Hands-on experience
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 infrastructures
  • Implement and troubleshoot advanced routing protocols including OSPF, BGP, EIGRP, and static routing
  • Deploy and manage Meraki wireless solutions including access points, controllers, and wireless security policies
  • Configure and maintain Cisco ASA firewalls and Firepower security appliances
  • Implement network security policies and access controls using Cisco ISE (Identity Services Engine)
  • Monitor network performance and optimize traffic flow across LAN, WAN, and wireless networks
  • Perform network capacity planning and scalability assessments
  • Troubleshoot complex network issues and provide root cause analysis
  • Maintain network documentation, diagrams, and standard operating procedures
  • Collaborate with security teams on network segmentation and compliance requirements
  • Mentor junior network engineers and provide technical guidance
Required Qualifications:
  • Bachelor's degree in Network Engineering, Computer Science, or related field 5+ years of hands-on experience with Cisco networking technologies
  • Expert-level knowledge of Cisco Catalyst switch configuration and management
  • Proficient with Cisco Nexus data center switching platforms
  • Extensive experience with routing protocols: OSPF, BGP, EIGRPHands-on experience with Cisco ASA firewalls and Firepower security modules
  • Experience deploying and managing Meraki wireless infrastructure
  • Strong understanding of network security principles and best practices
  • Experience with VLANs, STP, HSRP/VRRP, and QoS implementation
Preferred Qualifications:
  • Cisco ISE implementation and policy management experience
  • Current Cisco certifications (CCNP Enterprise, CCNP Security, or higher)
  • Experience with network automation and scripting (Python, Ansible)
  • Knowledge of SD-WAN technologies
  • Familiarity with network monitoring tools (SolarWinds, PRTG, etc.)Experience in enterprise or service provider environments
Technical Skills:
  • Cisco IOS/IOS-XE/NX-OS command line proficiency
  • Network design and architecture planning
  • Layer 2/3 switching and routing protocols
  • Wireless networking standards (802.11 a/b/g/n/ac/ax)
  • Network security implementation and troubleshooting

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JOB OVERVIEW

Experience level

Senior

Location

San Jose, CA

Occupation

Network and Computer Systems Administrators

Industry

Computer Systems Design Services

Posted

today

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