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Varian

Tech-enabled radiation oncology hardware and software

Network Engineer - Cloud Operations

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeNo salary listed

About the Job

Requirements

  • Experience supporting and managing networks in an enterprise cloud computing environment.
  • Deep understanding of network protocols including TCP/IP, UDP, ICMP, and ARP; addressing, NAT, subnetting, and CIDR.
  • Expertise in routing and switching with dynamic routing protocols such as OSPF, EIGRP, BGP, and MPLS; experience with VLANs, STP, and Layer 2/3 concepts.
  • Ability to analyze network performance and interpret packet captures using Wireshark, tcpdump, iperf, or SolarWinds.
  • Knowledge of WAN and VPN technologies such as MPLS, SD-WAN, IPsec, and SSL VPNs; Microsoft ExpressRoute experience is preferred.
  • Skills in hybrid networking setups and cloud-based solutions, including Azure Virtual Network.
  • Hands-on experience with Palo Alto Network firewalls, routers, switches, load balancers, and firewalls such as Cisco, Juniper, Fortinet, Palo Alto, and Citrix NetScaler.
  • Knowledge of network security concepts, including firewalls, IDS/IPS systems, access control lists, and DDoS mitigation.
  • Knowledge of authentication and encryption technologies including RADIUS, TACACS+, PKI, and SSL/TLS.
  • Hands-on experience troubleshooting telecom, peering partner, and peering provider networks.
  • Understanding of vendor, telco, exchange, and service-provider support escalation paths, including timely escalation of support requests.
  • Experience working with business-critical, highly available, and scalable infrastructure and applications.
  • Experience with ticket handling and processing.
  • Ability to communicate technical terms to business and customer stakeholders.
  • Hands-on experience with Microsoft Azure networking services and features.
  • Hands-on experience with Palo Alto Networks, Cisco, and Juniper devices and features.
  • Knowledge and experience with ITIL, incident, problem, change, and other process disciplines.
  • Experience creating diagram documentation using Visio or Lucidchart.
  • Experience writing technical documentation, especially for cloud architecture; ability to write as-built documentation, operating procedures, instructions, and templates.
  • Hands-on experience with firewalls, managed switches, and router configurations.
  • Palo Alto Networks firewall certification is mandatory; applicants without this certification are not eligible.
  • Azure Networking, Azure ExpressRoute, and Citrix NetScaler experience are mandatory.

Responsibilities

  • Provide network operations and support for Varian’s cloud solutions, including private, public, and hybrid infrastructure, networking, and security.
  • Assist with upgrading, installing, and configuring cloud solutions, including monitoring, application access, security, Palo Alto Networks, Citrix NetScaler, and Citrix ADC.
  • Assist with reporting on current infrastructure status and planning for future usage.
  • Configure and support backbone connections over Azure ExpressRoute, direct connections, and VPN architecture.
  • Maintain IP CIDR block allocations and perform network maintenance involving modifications to networks, subnets, VLANs, and routes.
  • Verify and act on events aggregated from network monitoring tools and web application firewalls using approved tools.
  • Troubleshoot network issues and determine their root causes.
  • Collaborate to resolve network outages and customer-impacting issues quickly.
  • Contribute to the successful execution of projects.
  • Create, update, and complete documentation.
  • Investigate incident root causes and produce follow-up reporting and final content.
  • Collaborate with network engineers on procedures, techniques, tips, and knowledge to improve operations, security, and work performed.
  • Escalate support requests to vendors in a timely manner when required.
  • Apply network system updates, patches, and configuration changes.
  • Plan network layouts and configure systems for user environments.
  • Provide technical mentorship to colleagues as needed.
  • Complete assigned Learning Management System courses and maintain knowledge of Varian’s applications.
  • Provide on-call support as required.
  • Work EMEA business hours.

Desired Qualifications

  • Microsoft ExpressRoute experience is preferred.
  • Strong telco or carrier networking experience is a plus.
  • Palo Alto Networks is described as highly recommended in the responsibilities, although the mandatory technical requirements separately require Palo Alto Networks firewall certification and experience.

About the Company

Varian

Tech-enabled radiation oncology hardware and software

Varian, part of Siemens Healthineers, focuses on oncology by providing integrated radiation oncology solutions that combine software, hardware, patient data, and care teams. Its offerings include treatment-planning software, radiation therapy machines, and data-management systems that work together to enable precise cancer treatments. The company differentiates itself through an integrated platform approach and services like Oncology-as-a-Service (OaaS), which lets healthcare providers adopt advanced radiation oncology with ongoing service support rather than large upfront investments. Varian serves healthcare providers such as hospitals and cancer centers, helping them deliver coordinated care and improve patient outcomes. Its goal is to reduce the fear of cancer by using data and technology to support clinicians in delivering effective treatments.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Palo Alto, CA
Founded
1948

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