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

AceStack LLC

Job Title : Senior Network & Security Engineer (Cisco ASA, Nexus, ISE, Cloud)
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, EIGRP
Hands-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
TCP/IP, DNS, DHCP, and other core networking protocols

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Vacancy posted 5 days ago

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