Network Engineer - Cloud Operations

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• Providing network operations and support for Varian’s cloud solutions. Private, public and hybrid infrastructure, network and security.
• Assisting with upgrading, installing, and configuring various cloud solutions including monitoring, application access, security, Palo Alto Networks (Highly Recommended), Citrix Net Scaler, Citrix ADC
• Assisting with reporting on current infrastructure status, and planning for future usage.
• Configuring and supporting backbone connections over Express Route (Azure), and direct connection and VPN architecture.
• Maintaining allocation of IP CIDR block, perform maintenance involving modification of network, subnets, vlans, routes etc.
• Verifying and action on events aggregated from network monitoring tools and Web Application Firewall using Varian approved tools.
• Troubleshooting and determining root cause of issues.
• Collaborating to quickly resolve any network related outages and resolve customer impacting issues quickly.
• Contributing to the successful execution of projects.
• Creating, updating, and completing documentation.
• Investigate root cause analysis of incidents with follow up reporting and final content generation.
• Collaborating with network engineers on procedures, techniques, tips & knowledge to improve operations, security and work performed.
• Providing the highest level of customer service.
• Advance understanding of vendor and telco/exchange/service providers support escalation paths and being able to escalate support requests to these vendors in a typically urgent and timely fashion.
• Appling network system updates, patches, configuration changes.
• Planning network layouts and configures systems to user environments.
• Serving as a technical mentor to colleagues as necessary.
• Staying up to date with assigned Learning Management System courses.
• Maintaining a strong knowledge of Varian’s suite of applications.
• Eagerness to provide the highest level of customer service.
• On call support as required.
• Working schedule North American business hours.

• Degree in computer science, or other engineering or technical discipline is preferred, or equivalent (5-7 years of additional specific relevant experience may be substituted for education).
• Experience in supporting and managing networks in an enterprise cloud computing environment.
  • Deep understanding of network protocols (e.g., TCP/IP, UDP, ICMP, ARP,), addressing, NAT and subnetting, CIDR.
  • Routing and Switching expertise in dynamic routing protocols like OSPF, EIGRP, BGP, and MPLS. Experience with VLANs, STP, and layer 2/3 concepts.
  • Network Performance Analysis, with the ability to interpret packet captures using tools like Wireshark, tcpdump, iperf, or Solar Winds as examples.
  • WAN and VPN knowledge of technologies such as MPLS, SD‑WAN, IPsec, and SSL VPNs. Microsoft Express Route experience preferred.
  • Skills in hybrid networking setups and cloud‑based solutions. Azure Virtual Network.
  • Hands‑on experience with Palo Alto Network Firewalls, including hands‑on experience with routers, switches, load balancers, and firewalls (e.g., Cisco, Juniper, Fortinet, Palo Alto, Citrix Net Scaler, etc.).
• Network Security Concepts
  • Expertise in firewalls, IDS/IPS systems, access control lists (ACLs), and DDoS mitigation.
  • Authentication and Encryption knowledge of RADIUS, TACACS+, PKI, and SSL/TLS.
• Hands on experience troubleshooting telecom/peering partner/peering provider networks.
• Understanding of vendor and telco/exchange/service providers support escalation paths and being able to escalation support requests to these vendors in a typically urgent and timely fashion.
• Experience working with business critical, highly available/scalable infrastructure and applications.
• Experience with ticket handling and processing.
• Clear communicator, ability to…