Fastly

Staff Software Engineer - Customer Identity & Access Management (CIAM)

Fastly
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4 hours ago
Denver, CO, USA +2 moreStaff+
H1B Sponsor

Base Salary

$211k - $254k/yr

Responsibilities

  • Design and build secure, scalable identity services for authentication, authorization, identity lifecycle, and related platform capabilities.
  • Lead complex technical initiatives from design through production while balancing long-term architecture with practical delivery.
  • Serve as technical lead for core CIAM platform areas by guiding architecture, reviewing designs, and advising teams on technical decisions.
  • Partner with engineering, product, and security teams to plan implementations, prioritize technical investments, and identify risks.
  • Improve the reliability, security, and maintainability of identity-related services through architectural and operational rigor.
  • Mentor CIAM engineers through design reviews, technical guidance, and collaborative problem solving.
  • Participate in an on-call support rotation as needed.

Requirements

  • Significant experience designing and operating authentication and authorization systems in production environments.
  • Fastly staff engineers typically have 7+ years of relevant experience.
  • Deep understanding of OIDC, OAuth, SAML, SCIM, JWT, and SSO identity standards and technologies.
  • Experience with service-to-service authentication and secure communication patterns in distributed systems.
  • Strong background in software architecture and system design, including scalability, performance, reliability, and security.
  • Demonstrated ability to provide technical leadership across multiple teams through architecture, complex initiative delivery, and collaborative influence.
  • Strong written and verbal communication skills, including technical documentation and stakeholder alignment.
  • Preferred experience with Go, Java, or Ruby.
  • Preferred experience with Keycloak.
  • Preferred experience implementing role-based and attribute-based access control systems.
  • Experience designing secure identity systems with consideration for authentication threats, authorization models, and operational resilience is preferred.

Benefits

  • Medical, dental, and vision insurance beginning on the first day of employment.
  • Family planning support, mental health support, and an Employee Assistance Program.
  • Life, disability, and accident insurance.
  • Flexible vacation policy and up to 18 days of accrued paid sick leave.
  • 401(k) with company match and an Employee Stock Purchase Program.
  • For 2026, 11 paid local holidays and 12 paid company wellness days.
  • Largely hybrid work model with flexibility to split time between the office and home; highly qualified remote candidates within the US may be considered.
  • Preferred locations are San Francisco, Denver, and New York, with quarterly travel potentially required.
  • Core business-hour availability and occasional nights and weekends are required for on-call coverage.

Tech Stack

GoJavaRuby

Categories

Fastly

About Fastly

1,001-5,000 employees

Get more powerful websites and applications with Fastly’s edge cloud platform. We help places like Reddit, Pinterest, Stripe, Neiman Marcus, The New York Times, Epic Games, and GitHub do so every day.