Staff Full-Stack Engineer: Partner Onboarding & Identity

Fanatics Commerce; United States; Remote; USD 144,000 - 237,000; Full time

Job summary

Fanatics Commerce is seeking a Staff Engineer for the Partnerships Engineering team. You will own onboarding platforms, APIs, and identity integrations that connect external partners to our Fanatics ONE ecosystem.

You will drive architecture across Identity, Loyalty, and SDK domains, mentor engineers, and collaborate with external partners to deliver scalable, reliable solutions that enable fans to connect and transact securely.

Qualifications

• 8+ years of software engineering experience.
• 2+ years in a staff-level or equivalent leadership role.
• Strong full stack background across backend services, APIs, and frontend tooling.
• Deep experience designing and building integration platforms, partner APIs, or developer-facing systems.
• Proven experience with OAuth 2.0, OpenID Connect, SAML, and identity provider integrations.
• Track record of architecting distributed systems that operate reliably at scale.

Responsibilities

• Lead the technical design and delivery of partner onboarding systems, integration platforms, and APIs that connect external partners to Fanatics ONE.
• Architect and build the Account Linking Platform, enabling fans to connect external partner accounts to their Fanatics ONE identity.
• Drive identity provider integrations, ensuring partners can connect to Fanatics Identity reliably and securely at scale.
• Build loyalty program integration systems that allow partners to participate in FanCash, Tier Point, and One Credit earning & redemption.
• Own technical quality across the team, establishing patterns, reviewing code, setting standards, and ensuring observability and maintainability.
• Partner with Identity, Loyalty, and SDK engineering teams to align on shared APIs, contracts and integration patterns; collaborate with external partners.
• Engage directly with external partners to translate integration requirements into scalable platform solutions.
• Identify and improve developer experience, tooling, documentation, and self-service capabilities to reduce integration time.
• Mentor engineers across the team, raising the technical bar through pairing and design reviews.

Skills

Full stack engineering

OAuth 2.0

Distributed systems

Leadership

APIs

Tools

Go

TypeScript

React

Job description

Fanatics Commerce is seeking a Staff Engineer for the Partnerships Engineering team. You will own onboarding platforms, APIs, and identity integrations that connect external partners to our Fanatics ONE ecosystem.

You will drive architecture across Identity, Loyalty, and SDK domains, mentor engineers, and collaborate with external partners to deliver scalable, reliable solutions that enable fans to connect and transact securely.