Network Engineer - III at CBTS – Chennai, Tennessee

CBTS serves enterprise and midmarket clients in all industries across the United States and Canada. CBTS combines deep technical expertise with a full suite of flexible technology solutions--including Application Modernization, Managed Hybrid Cloud, Cybersecurity, Unified Communications, and Infrastructure solutions. From developing and deploying modern applications and the secure, scalable platforms on which they run, to managing, monitoring, and optimizing their operations, CBTS delivers comprehensive technology solutions for its clients' transformative business initiatives. For more information, please visit www.cbts.com.

OnX is a leading technology solution provider that serves businesses, healthcare organizations, and government agencies across Canada. OnX combines deep technical expertise with a full suite of flexible technology solutions—including Generative AI, Application Modernization, Managed Hybrid Cloud, Cybersecurity, Unified Communications, and Infrastructure solutions. From developing and deploying modern applications and the secure, scalable platforms on which they run, to managing, monitoring, and optimizing their operations, OnX delivers comprehensive technology solutions for its clients’ transformative business initiatives. For more information, please visit www.onx.com.

An L3 Network Engineer is a senior specialist responsible for designing, implementing, and maintaining complex enterprise network infrastructures, focusing on high availability and security. They provide 3rd-level technical support, troubleshooting critical, escalated incidents, and managing WAN/LAN, firewalls, and load balancers.

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Key Responsibilities

• Advanced Troubleshooting: Handling 3rd-level IT tickets and resolving major, critical network incidents.
• Network Design & Implementation: Planning, designing, and deploying enterprise-level network architectures.
• Security & Optimization: Managing firewalls (e.g., Palo Alto, Fortinet), VPN gateways, and optimizing network performance.
• Infrastructure Management: Overseeing Data Center, WAN, and LAN technologies, including routers, switches, and load balancers.
• Documentation & Standards: Creating detailed network documentation, configurations, and maintaining standard operating procedures.
• Vendor Management: Coordinating with ISPs and external partners for service delivery.
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Required Skills and Qualifications

• Expertise: Deep knowledge of networking protocols (BGP, OSPF, EIGRP), VRF, HSRP, and VPC.
• Experience: Generally 5+ years of experience in network administration, with strong experience in Cisco, Juniper, or Arista technologies.
• Security Focus: Experience with Next-Generation Firewalls (NGFW) and intrusion prevention systems.
• Problem Solving: Strong analytical abilities for root cause analysis (RCA).
• Certifications: Often requires CCNP, CCIE, or equivalent certifications.
• Collaboration: Experience working in Agile/DevOps environments and mentoring junior staff.