Fastly

Senior Principal Engineer – Platform Engineering, Trust and Identity Infrastructure

Fastly

full-time

Posted on:

Location Type: Hybrid

Location: San Francisco • California, Colorado, New York • 🇺🇸 United States

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Salary

💰 $266,270 - $319,524 per year

Job Level

Senior

Tech Stack

ChefConsulDistributed SystemsGoLinuxOpen SourcePythonTerraformVault

About the role

  • Report directly to senior leadership and drive the execution of initiatives foundational to internal authentication, identity, and access control systems
  • Define the long-term vision for trust and identity infrastructure and translate it into tangible execution plans aligned with business goals
  • Design and implement scalable internal trust solutions such as secrets management, PKI, and authentication services
  • Tackle ambiguous, technically demanding initiatives with multiple stakeholders and organization-wide impact
  • Partner deeply with Product, Security, Compliance, and other Engineering teams for cross-functional leadership
  • Proactively identify potential situations that could negatively affect the business or customers and develop strategies to mitigate these risks
  • Establish and evangelize technical standards, code quality, reliability, and operational maturity
  • Mentor and support the professional growth of engineers, fostering a culture of respect, knowledge sharing, innovation, and collaboration
  • Be an active implementer, team member, and participate in on-call rotation with availability during core business hours and occasional nights/weekends as required

Requirements

  • Proven, hands-on experience building complex, resilient, and scalable infrastructure (Most Senior Principal Engineers at Fastly have at least 12 years of domain relevant engineering experience)
  • 5+ years experience in a technical leadership capacity as an individual contributor
  • Recent experience developing complex applications in Go and other languages, with an aptitude for learning new languages and technologies
  • Proven success leading cross-team initiatives in areas such as internal authentication, identity federation, secrets management, or trust systems
  • Strong systems engineering background with deep experience in Linux, networking, and distributed systems
  • Demonstrated expertise in modern programming languages (e.g., Go, Python) and infrastructure tooling (e.g., Terraform, Vault, Consul, Chef)
  • Experience navigating security and compliance requirements in highly regulated environments (e.g., FedRAMP, SOC2, ISO 27001)
  • Excellent written and verbal communication skills, with the ability to clearly articulate complex technical concepts and produce clear documentation
  • A collaborative mindset with experience working across cross-functional teams and influencing technical decisions at the org level
  • Proven ability to mentor and support the growth of engineers
  • We’ll be super impressed if you have experience implementing zero-trust architectures, designing scalable secrets lifecycle management workflows, working with PKI and certificate automation at scale, contributing to open source identity or security tooling, or leading post-incident analysis and operationalizing learnings into system improvements
Benefits
  • Comprehensive benefits package starting on the first day of your employment with Fastly
  • Medical insurance (US)
  • Dental insurance (US)
  • Vision insurance (US)
  • Family planning support
  • Mental health support and Employee Assistance Program
  • Insurance (Life, Disability, and Accident)
  • Flexible Vacation policy
  • Up to 18 days of accrued paid sick leave
  • 401(k) (including company match) (US)
  • Employee Stock Purchase Program
  • May be eligible to participate in Fastly’s equity and discretionary bonus programs
  • 11 paid local holidays (2025)
  • 11 paid company wellness days (2025)
  • Largely hybrid work model allowing flexibility to split time between office and home
  • In-person new hire orientation in San Francisco office (week-long)

ATS Keywords

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

Hard skills
GoPythonLinuxnetworkingdistributed systemsTerraformVaultConsulChefsecrets management
Soft skills
technical leadershipcommunicationcollaborationmentoringrisk mitigationknowledge sharinginnovationproblem-solvinginfluencingculture of respect
Certifications
FedRAMPSOC2ISO 27001
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