Staff Engineer – PKI Systems

Fastly

. Own the design and implementation of security-critical PKI infrastructure, including major refactors and new capabilities.

Posted 3/4/2026full-timeSan Francisco • California, Colorado, New York • 🇺🇸 United StatesLead💰 $211,370 - $253,644 per yearWebsite

Tech Stack

Tools & technologies

Distributed SystemsGoLinuxMicroservices

About the role

Key responsibilities & impact

Own the design and implementation of security-critical PKI infrastructure, including major refactors and new capabilities.
Lead cryptographic operations including key ceremonies, credential management, and multi-datacenter failover procedures.
Drive technical strategy for system hardening, automation, and resilience across ephemeral, containerized microservices and HSM environments.
Investigate and solve complex, ambiguous engineering problems and production incidents, creating proof-of-concepts and performing root cause analysis with a focus on security, automation, observability and stability.
Collaborate with TLS client, SRE, Security, and Product Engineering teams to translate complex business requirements and compliance standards (WebTrust, PCI) and evolve our infrastructure.
Mentor team members and foster a culture of technical excellence, providing guidance on design, performance, and cross-team collaboration.

Requirements

What you’ll need

Extensive experience designing, implementing, and maintaining distributed systems on Linux with a focus on automation and continuous monitoring. Most Staff Engineers at Fastly have more than 7 years of related experience.
Strong software development background (Go or similar) with a track record of owning the design phases of broadly scoped work or major refactors.
Deep understanding of applied cryptography, PKI architecture, and standards such as RFC 5280 and RFC 8555 (ACME).
Proven ability to lead technical decision-making, write clear design documents, and influence architectural discussions across multiple teams.
Experience building highly secure environments, including vulnerability management, system hardening, and intrusion detection.
Demonstrated ability to mentor engineers and help them understand the impact of their work on customers and stakeholders.

Benefits

Comp & perks

We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too. We support our teams with great benefits that start on the first day of your employment with Fastly. Curious about our offerings?
We offer a comprehensive benefits package including medical, dental, and vision insurance.
Family planning, mental health support along with Employee Assistance Program, Insurance (Life, Disability, and Accident), a Flexible Vacation policy and up to 18 days of accrued paid sick leave are there to help support our employees.
We also offer 401(k) (including company match) and an Employee Stock Purchase Program.
For 2026, we offer 11 paid local holidays, 12 paid company wellness days.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PKI infrastructurecryptographic operationskey ceremoniescredential managementsystem hardeningautomationLinuxGoapplied cryptographyvulnerability management

Soft Skills

leadershipmentoringcollaborationtechnical excellenceproblem-solvingcommunicationinfluencingguidance