Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers’ applications as close to their end-users as possible — at the edge of the Internet. The platform is designed to take advantage of the modern internet, to be programmable, and to support agile software development.

Fastly’s customers include many of the world’s most prominent companies, including GitHub, Yelp, Paramount, and JetBlue. We're building a more trustworthy Internet. Come join us.

Posting Open Date: 06/23/2026 Anticipated Posting Close Date*: 07/24/2026 *Job posting may close early due to the volume of applicants. Senior Infrastructure Engineer — Certification Authority Certainly is Fastly's publicly-trusted TLS certification authority, built on Boulder — the same open-source ACME server that powers Let's Encrypt. Our team owns the entire stack: Go services, bare-metal and cloud infrastructure, monitoring, security tooling, database operations, and the compliance posture that keeps us trusted by every major browser and operating system.

We operate under annual third-party audit and public accountability — our work is methodical, change-controlled, and documented. You'll bring engineering depth across infrastructure disciplines and apply it within a structured, compliance-driven environment where correctness is non-negotiable. This is high-impact work: your systems directly protect Fastly's customers and the broader internet.

What You'Ll Do

: You won't own all of these simultaneously on day one. We pair extensively, ramp deliberately, and expect 6–12 months to full breadth.

Benefits

from systematic execution Triage security vulnerabilities against our infrastructure, determine applicability, and drive remediation on defined timelines Operate and improve monitoring and alerting systems, participate in on-call rotation, and perform structured root cause analysis for production incidents Prepare and present technical evidence for annual WebTrust audits — demonstrate to external auditors how your systems satisfy compliance controls

What We'Re Looking For

: Strong background operating and automating Linux infrastructure, with experience managing the full lifecycle of production systems.