Staff Site Reliability Engineer, Fastly

• 8+ years of experience in Site Reliability Engineering, Systems Engineering, Platform/Infrastructure Engineering, or equivalent roles
• Professional experience operating in CDN, streaming media, or other high-volume internet traffic environments
• Deep understanding of network/distributed/cloud systems: TCP/IP, DNS, HTTP/S, TLS, caching/proxy/CDN technologies; direct experience in CDN, Web Application and API Security a plus
• Demonstrated ability to build automation, tooling, and observability systems: e.g., dashboards, alerts, instrumentation, data pipelines. Experience with Prometheus, Grafana, BigQuery/SQL, etc
• Hands-on experience with scripting or programming (e.g., Python, Go, Shell) and comfortable building tooling rather than just consuming
• Experience working cross-functionally with engineering, infrastructure, operations, analytics, and customer/account teams. Strong communication skills, ability to translate technical findings to non-technical stakeholders
• Demonstrated ability to coordinate complex technical work across multiple teams, facilitate daily standups or working sessions, and maintain operational momentum in complex, fast-moving environments
• Proven track record of driving mission-critical reliability and performance improvements in production systems. Strong sense of ownership and accountability
• Experience with monitoring/alerting systems and incident response. Bonus for experience with live streaming, high-variability traffic, or global seasonality at scale

Desirable

• We’re seeking a versatile and experienced Site Reliability Engineer who thrives in a fast paced, high scale environment and is passionate about reliability, performance, automation, and tooling
• Reporting to the VP of Performance Center Operations, you’ll serve as a key individual contributor within the Performance Center Operations team
• The Fastly Performance Center is the strategic and operational engine that ensures the highest level of performance for the most demanding workloads on the Internet
• We proactively safeguard quality of service at the global scale, drive technical and product strategies that shape our platform’s evolution, and directly influence revenue outcomes by ensuring our customers succeed
• Partnering cross-functionally across Engineering, Infrastructure, Product, Revenue, and Account teams to build tooling and processes that drive scale, availability, and intelligent automation
• Your work will help ensure Fastly remains the most performant, trusted, and customer aligned partner in the industry
• The scope of this role will evolve with the needs of the business and the maturity of the program
• Additional responsibilities may be assigned based on individual expertise and strategic priorities from the Office of the Founder & CTO
• This role is approximately 35% Site Reliability Engineering, 35% Data Analysis / Traffic Insights, and 30% Cross-functional Operations, balancing technical expertise with collaboration and strategic impact
• Drive the development of automation and observability tooling that improves operational efficiency and platform reliability, including traffic monitoring, alerting, and surveillance tools
• Partner with observability teams to implement and improve existing dashboards (Grafana, Prometheus) and metrics pipelines that provide meaningful visibility into traffic patterns, surges, and seasonal trends
• Help define SLIs/SLOs, and improve monitoring frameworks, ensuring alerts and dashboards reflect operational reality and proactively surface issues before customer impact
• Collaborate with data/analytics teams to leverage data pipelines (e.g., SQL, BigQuery or other large-scale data stores) for trend analysis, capacity planning, traffic pattern recognition
• Step in to run daily operational standups or coordination meetings as needed. Ensuring priorities are clear, follow ups are tracked, and cross functional execution maintains momentum
• Facilitate cross-team communication during high-impact initiatives or incident reviews, surfacing blockers early and maintaining execution momentum
• Perform root-cause investigations of performance, scalability or traffic anomalies, translate learnings into improvements in tooling and architecture
• Act as a technical liaison, helping contextualize traffic behavior, system performance, and support escalations with clear insight
• Help define and evolve run-books, incident response processes, post-mortems, knowledge base, ensuring that repeated issues are proactively surfaced and addressed via automation or tooling rather than reactive firefighting
• Provide leadership in incident response, mitigation and communication across teams
• Monitor seasonal patterns, major events, and global traffic distribution, helping ensure the platform remains resilient during shifts in demand

• Anticipated Posting Close Date*: Jan 6, 2026
• *Job posting may close early due to the volume of applicants