Senior Manager, Engineering - Platform Security

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: Reposted Oct. 26, 2026 Anticipated Posting Close Date*: Nov. 25, 2026 *Job posting may close early due to the volume of applicants. Senior Engineering Manager, Platform Security The Platform Security function at Fastly plays a critical role in maintaining and evolving the platform that powers a significant portion of internet traffic worldwide. This function delivers tooling and PKI solutions across a global network that spans six continents and boasts over 353 terabits per second of connected capacity. As the Senior Engineering Manager of the Platform Security team, you will oversee and scale the technical leadership across multiple engineering projects responsible for foundational infrastructure services. You will be responsible for defining the multi-year technical vision and ensuring strategic alignment with executive leadership. You will foster a culture of technical rigor, operational excellence, and innovation across the entire platform domain, moving beyond single-team execution to driving cross-organizational advancements. This is not a traditional "keep the lights on" operational role. Reliability is critical, but the real focus here is on innovation—driving strategic improvements, building foundational infrastructure for the future, and shaping how secure orchestration and trust services evolve at Fastly and beyond. What You'll Do: • Define the long-term strategic vision and multi-year technical roadmap for the Platform Security domain, ensuring these investments align with Fastly’s overall business and security objectives. • Oversee and develop a high-performing team that includes engineers and principal-level individual contributors, focusing on organizational structure, talent development, and scaling team capabilities to meet future demand. • Collaborate with cross-functional stakeholders using a product-owner mindset to define clear roadmaps and priorities. • Drive organizational-wide adoption of best practices for operational excellence, reliability, and security, establishing metrics and accountability across all platform services. • Clearly communicate the function’s strategy, progress, and risk profile to executive leadership and technical stakeholders across the company. • While you will not be expected to write code, you will need to leverage deep, related technical experience to succeed in this role What We're Looking For: • 4+ years of experience managing Platform or Site Reliability Engineering teams. • 10+ years of related technical experience with distributed systems and infrastructure as code. • Demonstrated ability to drive a durable technical roadmap and facilitate effective collaboration in cross-functional teams. • Experience with secrets and workload identity management, including using tools like SPIFFE, SPIRE, HashiCorp Vault, etc. • Experience building and automating large scale production infrastructure in public cloud and on-prem environments. Using TFE or similar technologies. • Extensive hands on experience working in a Linux environment with a solid understanding of system internals and performance optimization. We’ll be super impre