Senior Network Incident Engineer

Fidelity Investments Inc.; Westlake (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Fidelity Investments is seeking a Senior Network Engineer for the DCNS - Network Triage & Troubleshooting (NTT) team. You will troubleshoot complex enterprise networks across data center, cloud, security, and applications, drive incident response, and lead technical investigations.

The role emphasizes cross-team collaboration, automation, and clear communication during high-severity events. The team supports Fidelity’s internal operations and external customers, with shifts that include 10-hour

Qualifications

• 5+ years of hands-on experience supporting and troubleshooting complex enterprise network environments.
• Deep understanding of TCP/IP, routing and switching including BGP, OSPF, VLANs, VRFs, NAT, and high-availability designs.
• Experience with security technologies including firewalls, proxies, VPNs, segmentation, and DMZ architectures.
• Experience with load balancing, DNS/GSLB, application delivery, and traffic management.
• Hands-on experience with AWS and/or Azure networking, connectivity, and security constructs.

Responsibilities

• Lead complex troubleshooting during high-severity incidents and guide engineering teams.
• Isolate fault domains using telemetry, packet captures, logs, and performance data.
• Collaborate across network, security, cloud, application, and infrastructure domains.
• Develop evidence-based hypotheses and drive root-cause analyses and corrective actions.
• Mentor engineers and contribute to improved troubleshooting practices and automation.
• Communicate findings and business impact clearly to leadership and partners.

Skills

Troubleshooting

TCP/IP & Routing

Security & VPNs

Cloud Networking (AWS/Azure)

Packet Analysis

Observability & Monitoring

Python/Automation

IaC & APIs

Incident Management

Communication

Tools

Wireshark

Splunk

ThousandEyes

Riverbed AppResponse

AWS

Azure

Job description

Fidelity Investments is seeking a Senior Network Engineer for the DCNS - Network Triage & Troubleshooting (NTT) team. You will troubleshoot complex enterprise networks across data center, cloud, security, and applications, drive incident response, and lead technical investigations.

The role emphasizes cross-team collaboration, automation, and clear communication during high-severity events. The team supports Fidelity’s internal operations and external customers, with shifts that include 10-hour