Raas Infotek · 3 hours ago
Network Security Engineer
California, United States
Contract
Onsite
Senior Level, Lead/Staff
10+ years expRaas Infotek is seeking a Network Security Engineer to join their team. The role involves managing and securing enterprise networking environments, ensuring high availability and performance of network services.
Information Technology
Hiring Manager
Manmohan Singh
Responsibilities
Installing, cabling, and configuring routers, switches, and APs. Managing the physical layout of network closets and server rooms to ensure "clean room" standards
Administering NAC solutions and AAA (RADIUS/TACACS+) to secure the wireless and wired perimeter. Troubleshooting connectivity issues related to authentication and certificates
Managing IPAM (DHCP/DNS) and optimizing traffic flow via Load Balancers (VIPs, pools, and health monitoring) to maintain high application uptime
Enforcing security policies, patching network OS, updating firmware, and conducting regular security audits and log analysis
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
Utilizing packet captures and monitoring tools to analyze performance, resolve complex outages, and manage the RMA process for faulty hardware components
Qualification
Required
Bachelor's degree in computer science, IT, or a related field
10+ years of hands-on experience in enterprise networking, specifically in high-availability environments
Mastery of TCP/IP, DNS, DHCP, VLANs, and subnetting
Strong proficiency in advanced routing protocols, including OSPF and BGP
Expert-level knowledge of enterprise WLAN management, including 802.1X authentication, NAC, and AAA protocols (RADIUS/TACACS+) for secure access control
Experience configuring Firewalls, IDS/IPS, and VPNs
Proficient in managing Network Load Balancers (L4–L7) to ensure application scalability and health
Proven ability to manage physical infrastructure, including rack-and-stack, structured cabling (Cat6/Fiber), and hardware lifecycle management
Must be able to work 5 days per week on-site and participate in a dedicated on-call rotation for urgent network emergencies
Preferred
CCNA/CCNP (Enterprise or Security) is highly desirable
Company
Raas Infotek
RAAS Infotek is a full spectrum global Information Technology services company, providing end-to-end business solutions.
201-500 employees
H1B Sponsorship
Raas Infotek has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (52)
2024 (55)
2023 (62)
2022 (44)
2021 (61)
2020 (44)
Funding
Current Stage
Growth StageCompany data provided by crunchbase