Staff Software Engineer Customer Identity & Access Management (CIAM)

Fastly helps people stay better connected with the things they love. Fastlys edge cloud platform enables customers to create great digital experiences quickly securely and reliably by processing serving and securing our customers applications as close to their end-users as possible at the edge of the Internet. The platform is designed to take advantage of the modern internet to be programmable and to support agile software development. Fastlys customers include many of the worlds most prominent companies including GitHub Yelp Paramount and JetBlue.

Were building a more trustworthy Internet. Come join us.

Posting Open Date: 08/19/2026

Anticipated Posting Close Date*: 09/17/2026

*Job posting may close early due to the volume of applicants.

Staff Software Engineer - Customer Identity Access Management (CIAM)

Join our dynamic Customer Identity Access Management (CIAM) team as a Staff Software Engineer and play a pivotal role in building cutting-edge solutions that centralize and simplify how organizations manage user identities and profile data. Our CIAM team is committed to empowering customers with control over user access by providing advanced access control mechanisms innovative authentication methods progressive profiling and a unified identity experience.

We are looking for passionate highly skilled software engineers to join our team and be an integral part of our mission. If youre eager to make a significant impact and contribute to the growth of a thriving CIAM ecosystem we would love to have you on board. Lets build something remarkable together!

What Youll Do

• Design and build secure scalable identity services supporting authentication authorization identity lifecycle and related platform capabilities.
• Lead implementation of complex technical initiatives from design through production balancing long-term architecture with practical delivery.
• Serve as the technical lead for one or more core areas of the CIAM platform guiding architecture reviewing designs and helping teams make sound technical decisions.
• Partner with engineering product and security to shape implementation plans prioritize technical investments and identify risks early.
• Break down ambiguous technical problems into practical incremental solutions while maintaining a high bar for engineering quality.
• Champion modern standards-based identity patterns and help teams adopt engineering best practices across the CIAM platform.
• Improve the reliability security and maintainability of identity-related services through strong architectural decisions and operational rigor.
• Mentor engineers within the CIAM organization through design reviews technical guidance and collaborative problem solving.
• Contribute to an inclusive engineering culture grounded in curiosity pragmatism and continuous improvement.
• Participate in on-call support rotation as needed.

What Were Looking For

• Significant experience designing and operating authentication and authorization systems in production environments. Staff engineers at Fastly typically have 7 years of relevant experience.
• Deep understanding of identity and access standards and technologies such as OIDC OAuth SAML SCIM JWT and SSO.
• Experience with service-to-service authentication and secure communication patterns in distributed systems.
• Strong background in software architecture and system design especially in areas of scalability performance reliability and security.
• Demonstrated ability to provide technical leadership across multiple teams through architectural guidance delivery of complex initiatives and collaborative influence.
• Strong written and verbal communication skills including the ability to produce clear technical documentation and align diverse stakeholders.

Preferred Qualifications/Bonus Points

• Experience with Go Java or Ruby
• Experience with Keycloak
• Production experience implementing Role and Attribute-based Access control systems
• Experience designing secure identity systems with strong consideration for authentication threats authorization models and operational resilience.

Work Hours:

This position will require you to be available during core business hours and occasional nights and weekends as necessary to support on-call coverage.

Work Location(s) & Travel Requirements

The preferred locations for this position are:

• San Francisco CA
• Denver CO
• New York NY

Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home.

There is a strong preference for Hybrid near a local office. However we may be willing to consider highly qualified remote candidates within the US.

This position may require travel quarterly to align on technical designs and direction

SF / LA Fair Chance Ordinance Statement

Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring Ordinance we will consider for employment qualified applicants with arrest and conviction records.

Salary:

The estimated salary range for this position is $211370 to $253644.

Starting salary may vary based on permissible non-discriminatory factors such as experience skills qualifications and location.

This role may be eligible to participate in Fastlys equity and discretionary bonus programs.

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.

Why Fastly

• We have a huge impact.Fastly is a small company with a big reach. Not only doour customershave a tremendous user base but we also support a growing number ofopen source projects and of code employees are encouraged to share causes close to their heart with others so we can help lend a supportive hand.

• We value diversity.Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful -- every day.

• We are passionate.Fastly is chock full of passionate people and were not one size fits all. Fastly employs authors pilots skiers parents (of humans and animals) makeup geeks coffee connoisseurs and more. We love employees for who they are and what they are passionate about.

Were always looking for humble sharp and creative folks to join the Fastly team. If you think you might be a fit please apply! A fully completed application and resume or CV are required when applying.

All job applications must be submitted through our official careers site at We will never request sensitive information such as your Social Security number bank account or credit card information during the application process. All official communication will come from an @ or @ email address.

Fastly is committed to ensuring equal employment opportunity and to providing employees with a safe and welcoming work environment free of discrimination and harassment. Our employment decisions are based on business needs job requirements and individual qualifications. All qualified applicants will receive consideration for employment without regard to age ancestry color family or medical care leave gender identity or expression genetic information marital status medical condition national origin family or parental status physical or mental disability political affiliation protected veteran status race religion sex (including pregnancy) sexual orientation or any other characteristic protected by applicable laws regulations and ordinances.

Consistent with the Americans with Disabilities Act (ADA) and federal or state disability laws Fastly will provide reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process to perform essential job functions and/or to receive other benefits and privileges of employment please contact your Recruiter or the Fastly Employee Relations team at or .

Fastly collects and processes personal data submitted by job applicants in accordance with ourPrivacy Policy. Please see ourprivacy notice for job applicants.