The Senior Engineer in the Identity Domain provides senior technical leadership for identity services across the platform. This role defines and evolves enterprise-wide identity and access management (IAM) capabilities, influencing architecture, engineering standards, and execution across multiple teams.
The Senior Engineer sets technical direction for authentication, authorization, and identity federation, drives adoption of modern identity standards, and ensures identity is implemented as a consistent, secure platform capability.
Key Responsibilities
Technical Leadership
Act as the senior technical authority for identity services across platforms and teams
Define and evolve enterprise-wide IAM architecture and engineering standards
Design and maintain reference implementations for core identity capabilities
Review and influence system designs and code to ensure security, scalability, and correctness
Authentication, Authorization & Access Management
Architect and implement OAuth 2.0, OpenID Connect (OIDC), and SAML 2.0 for SSO and federation across hybrid, multi-cloud, and SaaS environments
Drive adoption of phishing-resistant, passwordless authentication, including FIDO2, WebAuthn, and Passkeys
Define API authorization patterns using JWT and mTLS for service-to-service communication
Lead the transition to adaptive, context-aware authorization models (RBAC/ABAC) aligned with Zero Trust principles
Identity Lifecycle & Federation
Define and implement automated identity lifecycle management using SCIM
Guide teams on unified and federated identity constructs and cross-domain trust models
Incorporate global trends in identity and identity verification into platform design and standards
Influence & Mentorship
Mentor engineers across teams, raising the bar for identity and security engineering
Provide technical guidance to product and platform partners on identity-related decisions
Influence roadmaps and priorities through technical leadership and domain expertise
Required Qualifications
Extensive experience designing and building identity and access management systems
Strong knowledge of identity protocols and standards (OAuth 2.0, OIDC, SAML, SCIM)
Experience with federated and unified identity architectures in distributed environments
Proven ability to influence technical direction across multiple teams and platforms
Preferred Qualifications
Experience with identity verification, risk-based authentication, or trust signals
Familiarity with Zero Trust architectures and adaptive access control models
Experience operating identity platforms at scale in regulated or security-sensitive environments
Impact & Scope
Technical decisions have broad impact across the Identity Domain and adjacent platforms
Establishes standards and patterns adopted by multiple teams
Qualification
Bachelor’s degree in Computer Science, Engineering, or related field
12+ years of experience building large-scale distributed systems
5+ years as a technical lead or architect in identity management domain owning end-to-end system design
Additional Details
The base pay range for this position is expected in the range below
$217,600 - $290,500
Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including 401(k) eligibility and various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.
If hired, employees will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.
Remote roles are not eligible for U.S. visa sponsorship.
eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, veteran status, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at talent@ebay.com. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
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