Senior Network Engineer

Who we are

DigiCert is a global leader in intelligent trust. We protect the digital world by ensuring the security, privacy, and authenticity of every interaction. Our AI-powered DigiCert ONE platform unifies PKI, DNS, and certificate lifecycle management, to secure infrastructure, software, devices, messages, AI content and agents. Learn why more than 100,000 organizations, including 90% of the Fortune 500, choose DigiCert to stop today’s threats and prepare for a quantum-safe future at www.digicert.com

Job summary

• The Network Infrastructure team is responsible for the operation, monitoring, maintenance, and support of DigiCert's global production network.
• This position serves as a first responder for network incidents and operational requests, providing initial troubleshooting, monitoring, and administration of production network systems.

What you will do

• Network Operations & Monitoring
• Monitor the health, performance, and availability of global production network infrastructure.
• Review device logs, alerts, and monitoring systems to identify and respond to operational issues.
• Perform initial troubleshooting and incident response for network-related events.
• Troubleshoot network, application, database, DNS, load balancing, and service connectivity issues across data center and cloud environments.
• Work with Internet service providers, telecommunications carriers, cloud providers, application teams, database administrators, and third-party vendors to diagnose and resolve connectivity, routing, latency, and service-impacting issues.
• Participate in incident response activities and assist with service restoration efforts during production outages.
• Escalate complex issues to senior engineers while providing accurate documentation and diagnostics.
• Participate in root cause analysis activities following service-impacting incidents
• Implement routine network configuration changes following established procedures.
• Perform basic firewall policy modifications and access control changes.

What you will have

• Associate's or Bachelor's degree in Information Technology, Computer Science, Engineering, or a related field, or an equivalent combination of education and relevant experience.
• 5+ years of experience supporting enterprise, service provider, or data center network environments.
• Understanding of: TCP/IP, DNS, Routing and switching fundamentals, VLANs and network segmentation, Firewall concepts, VPN technologies
• Understand routing protocols and route troubleshooting concepts.
• Experience using network monitoring, logging, and observability platforms to identify, investigate, and respond to infrastructure issues.
• Experience reviewing system and device logs to assist with troubleshooting and incident response activities.
• Experience responding to operational incidents and working within established incident management processes.
• Experience troubleshooting network, application, database, DNS, and service connectivity issues in collaboration with service providers, cloud providers, vendors, and internal technical teams.
• Ability to perform network troubleshooting and isolate issues across routing, switching, firewall, load balancing, and cloud-connected environments.

Strong analytical and problem-solving skills.

• Ability to follow operational procedures in a highly controlled production environment
• Excellent written and verbal communication skills
• Ability to participate in on-call support rotation and monthly maintenance.

Nice to have

• Familiarity with Linux-based systems.
• Exposure to modern data center networking architectures, including Leaf-Spine fabric designs.
• Familiarity with data center networking technologies such as:

Border Gateway Protocol (BGP)

Virtual Extensible LAN (VXLAN)

Ethernet VPN (EVPN)

• Understanding of overlay and underlay networking concepts within modern data center environments.

Experience supporting Arista EOS-based switching environments.

• Experience using Arista CloudVision for network management, monitoring, automation, and operational visibility.
• Ability to perform under pressure during incidents.
• Ability to work effectively within a global infrastructure team.

Benefits

• Generous time off policies
• Top shelf benefits
• Education, wellness and lifestyle support

To protect candidate information and maintain a secure hiring process, all applications must be submitted through our careers portal. Resumes or CVs sent directly via email will not be reviewed or considered.

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