The application window is expected to close on: 05/08/2026

Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received.

Who We Are

Cisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver detailed digital experiences across every network—even the ones they don’t own. Powered by AI and an unmatched set of cloud, internet, and enterprise network telemetry data, ThousandEyes enables IT teams to proactively detect, diagnose, and remediate network performance issues before they impact end-user experiences.

About The Role

Have you ever wondered how the Internet works under the hood? At ThousandEyes, we spend every day helping our customers navigate the complexities of Internet-based service delivery.

As a Senior Network Support Engineer, you will be the primary technical advocate for our customers. You will employ your deep networking expertise to analyze complex traffic patterns, diagnose routing anomalies, and deliver actionable insights. Whether you are troubleshooting BGP route leaks, analyzing packet captures, or optimizing end-to-end connectivity, you will be the "smoking gun" investigator that saves our customers hours of downtime.

Note: As part of this role, you will be responsible for maintaining services in a FedRAMP-compliant environment and must be a U.S. Person (U.S. citizen). This position may perform work that the U.S. government has specified can only be performed by a U.S. citizen on U.S. soil.

What You’ll Do

• Provide expert-level support for complex network performance issues, including BGP, OSPF, DNS, TCP/IP, and application-layer connectivity.
• Lead the resolution of high-impact, critical network outages by performing deep-dive analysis of telemetry data and packet captures.
• Partner with Engineering and Product teams to translate customer network challenges into product improvements and roadmap features.
• Act as a technical subject matter expert (SME) to mentor junior engineers on advanced network diagnostics and troubleshooting methodologies.
• Use Python or other automation tools to streamline troubleshooting workflows and improve serviceability.
• Create high-quality user documentation, white papers, and training materials that help customers understand complex network behaviors.
• Represent the support organization in high-stakes customer engagements and internal product strategy meetings.

Qualifications

• 5–8+ years in a senior network support, network engineering, or technical operations role.
• Bachelor’s degree in Computer Science, Electrical Engineering, or a related field (or equivalent practical experience).
• A "customer-first" attitude with a passion for solving the "unsolvable" network problems.
• Deep understanding of networking protocols (BGP, MPLS, VPN, DNS, HTTP/S, TLS).
• Expert-level certifications (e.g., CCIE, CCNP, or equivalent) are highly preferred.
• Demonstrable ability to interpret complex data sets, logs, and packet captures to drive data-driven decisions.
• Proficiency in scripting (Python, Bash) or network programmability (APIs, Ansible, Terraform) to automate diagnostic tasks.
• Exceptional ability to explain complex technical concepts to both technical and non-technical stakeholders.

Why Cisco? 

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. 

We are Cisco, and our power starts with you. 

Message to applicants applying to work in the U.S. and/or Canada:

The starting salary range posted for this position is $158,200.00 to $200,700.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits.

Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for cer