Senior Manager - Detection Engineering

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 Vimeo, Pinterest, The New York Times, and GitHub.

We're building a more trustworthy Internet. Come join us.

Posting Open Date: November 6, 2025

Anticipated Posting Close Date*: December 6, 2025

*Job posting may close early due to the volume of applicants.

Senior Manager - Detection Engineering

We’re looking for a Senior Manager to lead our Security Detection Engineering team. In this role, you’ll grow and shape our detection engineering program and level up our security incident response processes. The ideal candidate is hands-on and technical, with experience in security engineering, detection development, incident response, and who knows how to support and empower a team. You take a practical, risk-based approach to security—focusing on impact, driving automation wherever possible, and keeping things efficient without overcomplicating them.

What You'll Do:

• Shape and execute the long-term strategy for detection engineering, security incident response, threat intelligence, and threat hunting
• Lead efforts to build detections, tools, automations, and integrations that strengthen our threat detection and response capabilities 
• Mentor, grow, and support a team of security engineers
• Work with Fastly's Incident Management team to improve our security incident response processes, playbooks, and metrics
• Partner with engineering to implement security controls
• Lead security incidents for the company

What We're Looking For: 

• An empathetic and inclusive leader with experience in leading a team of security practitioners
• Strong communication and interpersonal skills; ability to effectively communicate security risks and recommendations to technical and non-technical stakeholders
• Technical understanding of attacker threats and exploitation techniques, and first-hand experience in investigating them
• Experience in scaling a detection engineering program and building high-fidelity detections-as-code 
• Experience in serving as an Incident Commander or leading large, cross-functional security incidents
• Experience in securing, identifying threats, and responding to incidents in one major public cloud infrastructure, such as Amazon Web Services (AWS) or Google Cloud Platform (GCP).
• 7-10+ years of relevant experience; we are open to strong candidates with varying backgrounds who can demonstrate equivalent expertise and impact. 

We’ll be super impressed if you have experience in any of these: 

• Published security research or have spoken at community events on detection engineering or security incident response
• Familiarity with content delivery networks (CDN), edge cloud platforms, or other Fastly products and services
• Experience with Linux administration at scale, associated intrusion/manipulation techniques, and standard methodologies for system hardening and process isolation.

Work Hours: 

• This position will require you to be available during core business hours and support an escalation-tier on-call rotation. 

Work Location(s) & Travel Requirements: 

This position is open to the following preferred office locations:

• New York, NY
• San Francisco, CA
• Denver, CO

Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home. 

This position may require travel as required by your role or requested by your manager.

SF / LA Fair Chance Ordinance Statement

Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Salary:

The estimated salary range for this position is $211,370 to $253,644. 

Starting salary may vary based on permissible, non-discriminatory factors such as experience, skills, qualifications, and location.

This role may be eligible to participate in Fastly’s equity and discretionary bonus programs.

Bene