Senior Security Engineer - Detection Engineering

Fastly·Denver, CO; New York City, NY; San Francisco, CA·Posted 6 October 2026

Apply with a tailored CV View on Fastly's site

About the role

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: October 6, 2026 Anticipated Posting Close Date*: December 6, 2026 *Job posting may close early due to the volume of applicants. Senior Security Engineer, Detection Engineering As a Senior Security Engineer on our Detection Engineering team, you will build the detections that catch malicious activity across the Fastly environment and drive the investigations that follow. We are looking for a teammate with a strong security engineering foundation and hands-on experience in security incident response, detection development, and applying AI to…

This is a summary of the advert. The full description and the application are on Fastly's careers site.

Apply faster with Prepper

A version of your CV tailored to this Senior Security Engineer - Detection Engineering role.
A cover letter written from your CV and this advert.
Prepper can fill in Fastly's application form and send it once you approve.
The application saved in your tracker, with reminders to follow up.

Start free

More roles at Fastly

Prepper is independent and not affiliated with Fastly. Roles are listed from the employer's public careers system and removed when they close.