Senior Software Engineer, Event Data Platform (Growth)

The role

You will own the event stream from Segment through downstream destinations like Braze, Amplitude, Snowflake, AppsFlyer, and ad platforms. You will partner with web, mobile, and backend engineers to define event contracts and ensure data integrity. The role involves managing identity resolution, lifecycle integrations, and data governance.

What you will do

• Own the event pipeline from Segment through all downstream MarTech destinations
• Manage destination configuration, transformations, audience sync, and delivery reliability
• Define event contracts and schema standards
• Review instrumentation changes and validate payloads from web, mobile, and backend systems
• Own the identity model within Segment and downstream destinations
• Implement and maintain Braze integrations including audience sync and event-triggered messaging
• Own AppsFlyer configuration and mobile attribution
• Establish event schema standards, naming conventions, and QA gates
• Audit and manage destination configuration, event volume, and platform spend

Required qualifications

• 5+ years of software engineering experience, with a focus on integrating third-party platforms and SDKs within complex ecosystems
• Strong SQL
• Working knowledge of web and/or mobile client technologies (React/NextJS, Swift, or Kotlin)
• Expertise in event-driven architecture, data instrumentation, and payload validation
• Proven track record troubleshooting distributed systems and ensuring data integrity across multiple platforms
• Exceptional communication skills

Nice to have

• Deep, hands-on experience with at least 2–3 of: Segment (or another CDP such as mParticle), Braze (or Iterable/Klaviyo/SFMC), Amplitude, Snowflake, AppsFlyer (or another MMP)
• Experience designing or operating an event facade/proxy service in front of a CDP
• CDP governance at scale, including event volume and cost optimization
• Identity resolution across multiple user ID systems
• Experience in e-commerce or gaming
• A/B testing and experimentation platform experience
• Cross-functional collaboration experience spanning Product, Marketing, and Engineering

About the company

Fanatics is building a leading global digital sports platform. Topps is a digital-first division within Fanatics.