Staff Full Stack Engineer - Partnerships Engineering

New Yorkfull timeOn Site

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senior

$144k–$237k

H1B: no

Fanaticsfbg Staff Full Stack Engineer - Partnerships Engineering leads architecture and design for systems integrating new operating companies and external partners into the Fanatics ONE ecosystem. Drives engineering standards and delivers reliable, scalable full stack systems for identity provider integrations, loyalty program onboarding, and account linking.

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 seamlessly 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 without requiring bespoke integrations for each partner
Own technical quality across the team, establishing patterns, reviewing code, setting standards, and ensuring systems are observable, testable, and maintainable
Partner with Identity, Loyalty, and SDK engineering teams within Fanatics Core to align on shared APIs, contracts and integration patterns as well as architecture and development patterns
Engage directly with external partners and their technical teams to understand integration requirements and translate them into scalable platform solutions
Identify and drive improvements to developer experience, including tooling, documentation, and self-service capabilities that reduce partner integration time
Mentor engineers across the team, raising the technical bar through pairing, design reviews, and engineering culture

Qualification

Proven experience with OAuth 2Experience with loyaltyPrior experience at a sportsbookDepending on the roleFor information about our benefits

Required

8+ years of software engineering experience, with 2+ years in a staff-level or equivalent technical leadership role
Strong full stack engineering background, comfortable 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
Strong written and verbal communication skills, with the ability to drive alignment across engineering, product, and external stakeholders
Experience working in a multi-tenant or multi-opco environment

Preferred

Experience working with GO and Typescript/React
Experience with loyalty, rewards, or payments platforms
Familiarity with event-driven architectures (Kafka or similar)
Experience building account linking or federation systems
Prior experience at a sportsbook, fintech, or regulated industry
If you possess some of these qualifications but not all of them, we still encourage you to apply!
Depending on the role, your interview and onboarding experience may include in-person components, such as onsite interviews or Launching into Better: LIVE—a multi-day cultural immersion in New York City for full-time, non-seasonal hires. These sessions are designed to build connection and bring our culture to life, though specific travel and participation requirements will be confirmed based on your role and location. Your recruiter will provide clear guidance at each stage of the process.
For information about our benefits, please visit https://benefitsatfanatics.com/