Fastly

Staff Engineer – PKI Systems

Fastly

full-time

Posted on:

Location Type: Hybrid

Location: San FranciscoCaliforniaColoradoUnited States

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Salary

💰 $211,370 - $253,644 per year

Job Level

About the role

  • 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

  • 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
  • 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.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PKI infrastructurecryptographic operationskey ceremoniescredential managementsystem hardeningautomationLinuxGoapplied cryptographyvulnerability management
Soft Skills
leadershipmentoringcollaborationtechnical excellenceproblem-solvingcommunicationinfluencingguidance