About the job
At Fastly, we empower individuals to connect more effectively with their passions. Our cutting-edge edge cloud platform allows clients to rapidly, securely, and reliably create outstanding digital experiences by processing, serving, and safeguarding their applications close to end-users—right at the edge of the Internet. Designed to leverage the modern internet's capabilities, our platform is adaptable and supports agile software development. We proudly serve a diverse clientele, including industry leaders such as GitHub, Yelp, Paramount, and JetBlue.
Join us in our mission to build a more secure and trustworthy Internet.
Posting Open Date: Feb. 9, 2026
Anticipated Posting Close Date*: March 2, 2026
*Job posting may close early due to the volume of applicants.
Role Overview:
As a Staff PKI Systems Engineer, you will be instrumental in building and operating Certainly, Fastly's publicly-trusted TLS certification authority. Utilizing Boulder, the same open-source technology behind Let's Encrypt, Certainly delivers widely trusted, short-validity certificates at scale, enhancing internet security. You will take charge of the architecture and operational excellence of complex PKI systems while mentoring a dedicated team of engineers. By integrating extensive security knowledge with software development, you will tackle intricate, internet-facing engineering challenges to ensure compliance with strict industry standards and reliability goals. This high-impact role ensures that your designs directly safeguard Fastly's clientele and the wider web.

