Senior Backend Engineer

About the Team

Fanatics Collect is a technology company dedicated to revolutionizing the world of collectibles. Every single day our team of experienced product leaders, creative thinkers, and operators obsesses over how to create the ultimate collector experience with our two core products - Collect, the most trusted and dynamic collector focused marketplace, and Live, the most fun and entertaining live shopping experience in collecting.

We have the unique advantage of being backed by Fanatics - the world’s largest sports merchandiser, with more than 900 global sports relationships, 90+ million reachable fans, and exclusive licensing deals with the MLB, NFL, and NBA among many others - but we’re a small, nimble, ambitious team building products from the ground up.

If you're passionate about building world class products and share our love for sports fans and collectors, Fanatics Collect offers an exciting opportunity to be part of a dynamic team creating the future of collecting.

Role Summary

We are hiring a Senior Backend Engineer to lead the evolution of the Live and Collect platforms to support international expansion and acquisition integration.

This role focuses on building and scaling transaction systems that enable global commerce, while adapting an existing real-time platform to support new markets. You will play a key role in addressing backend capacity constraints and shaping a shared transaction layer used across multiple business lines.

What You’ll Actually Work On

• Designing and scaling systems that support multi-currency, cross-border transactions
• Building and extending a shared transaction and ledger layer
• Supporting integration of newly acquired platform capabilities into Live and Collect
• Designing APIs for frontend, mobile, and seller platform use cases
• Handling real-world complexity including currency conversion, fees, reconciliation, and refunds
• Supporting region-specific requirements such as tax, shipping, and compliance
• Improving performance and scalability of real-time transaction systems

Key Responsibilities

• Own backend services in a high-scale, real-time environment
• Lead architectural decisions across transaction and platform systems
• Mentor engineers and raise backend engineering standards
• Partner closely with frontend and mobile teams to deliver global experiences
• Collaborate with existing Live and Collect team members to ensure continuity and execution

What We’re Looking For

• 6+ years backend engineering experience
• Strong experience designing distributed systems and APIs
• Deep experience building or scaling payment, ledger, or transaction systems in production environments
• Experience with Elixir and GraphQL preferred
• Background in eCommerce or transaction-heavy platforms operating across regions
• Ability to evolve existing systems pragmatically in fast-moving environments
• Comfortable operating in ambiguity with a strong sense of ownership

Code-Writing Contribution

• Highly hands-on, with responsibility for designing and implementing critical backend systems.

Ensure your Fanatics job offer is legitimate and don’t fall victim to fraud.  Fanatics never seeks payment from job applicants. Feel free to ask your recruiter for a phone call or other type of communication for interview, and ensure your communication is coming from a Fanatics email address (including @collectfanatics.com).  For added security, where possible, apply through our company website at www.fanaticsinc.com/careers