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# Senior Software Engineer - Live & Collect

- **Company:** Fanatics Inc.
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Distributed Systems, Backend, Graphql, Front End Software Development, Elixir
- **Published:** September 8, 2026
- **Apply:** https://www.collegerecruiter.com/job/2840574885-senior-software-engineer-live--collect

## About the Role

* 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

## Description

Fanatics Collect is seeking a Senior Backend Engineer to lead the evolution of the Collect platform 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
 * 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, * 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 team members to ensure continuity and execution
 * Code-Writing Contribution - Highly hands-on, with responsibility for designing and implementing critical backend systems.


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