Network Engineer – Cloud Operations

Job Description: • 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 NetScaler, Citrix ADC • Assisting with reporting on current infrastructure status, and planning for future usage • Configuring and supporting backbone connections over ExpressRoute (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 Requirements: • 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 SolarWinds as examples • WAN and VPN knowledge of technologies such as MPLS, SD-WAN, IPsec, and SSL VPNs • Microsoft ExpressRoute 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 NetScaler, 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 escalate 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 communicate technical terms to business and customer stakeholders • Experience in supporting and managing networks in an enterprise cloud computing environment • Hands-on experience with Microsoft Azure Networking services and features • Hands-on experience with Palo Alto Networks (required), Cisco and Juniper devices and features • Experience working with highly business-critical, highly available/scalable infrastructure and applications • ITIL knowledge and experience with Incident, Problem, Change, and other process disciplines • Experience creating diagram documentation (Visio/Lucidchart) • Experience writing technical documentation, especially in relation to Cloud architecture. • Will be required to write as built, operating procedures and instructions, templates • Hands-on experience with firewalls, managed switches and router configurations Benefits: • Professional development opportunities • Flexible working arrangements