Network Security EngineerApptad Inc • San Jose, California, USA
Network Security Engineer
Apptad Inc • San Jose, California, USA
[job_card.variable_days_ago]
[job_preview.job_type]
- [job_card.full_time]
[job_card.job_description]Physical & Logic Infrastructure : Installing cabling and configuring routers switches and APs. Managing the physical layout of network closets and server rooms to ensure clean room standards. Wireless & Access Security : Administering NAC solutions and AAA (RADIUS / TACACS) to secure the wireless and wired perimeter. Troubleshooting connectivity issues related to authentication and certificates. Core Services & Traffic Management : Managing IPAM (DHCP / DNS) and optimizing traffic flow via Load Balancers (VIPs pools and health monitoring) to maintain high application uptime. Security & Maintenance : Enforcing security policies patching network OS updating firmware and conducting regular security audits and log analysis. Operational Continuity : Providing essential on-site support 5 days a week and serving as the Tier 3 escalation point during on-call shifts to resolve critical outages. Troubleshooting & RMA : Utilizing packet captures and monitoring tools to analyze performance resolve complex outages and manage the RMA process for faulty hardware components.
Job Title : Network Security Engineer
Location : San Jose CA 95131 (Onsite)
Primary Skill - Routing Switching DNS DHCP Network Firewall AAA Load balancing
Key Qualifications & Skills
- Education & Experience : Bachelors degree in computer science IT or a related field; 10 years of hands-on experience in enterprise networking specifically in high-availability environments.
- Networking & Routing : Mastery of TCP / IP DNS DHCP VLANs and subnetting. Strong proficiency in advanced routing protocols including OSPF and BGP.
- Wireless & Identity Management : Expert-level knowledge of enterprise WLAN management including 802.1X authentication NAC and AAA protocols (RADIUS / TACACS) for secure access control.
- Security & Traffic Control : Experience configuring Firewalls IDS / IPS and VPNs. Proficient in managing Network Load Balancers (L4 L7) to ensure application scalability and health.
- Physical Layer Expertise : Proven ability to manage physical infrastructure including rack-and-stack structured cabling (Cat6 / Fiber) and hardware lifecycle management.
- Availability : Must be able to work 5 days per week on-site and participate in a dedicated on-call rotation for urgent network emergencies.
- Certifications : CCNA / CCNP (Enterprise or Security) is highly desirable.
Key Responsibilities
Key Skills
Network security,Protocols,ASA,Tcp / IP,Routers,Windows,Access Control,Information Security,Infrastructure,Linux,IOS,Servers,Troubleshoot,Intrusion Detection,Siem
Employment Type : Full Time
Experience : years
Vacancy : 1
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