Senior Backend Engineer - Global Transactions & Ledger

Fanatics Collectibles; Greater London; On-site; GBP 110,000 - 150,000; Full time

Job summary

Fanatics Collectibles in London is seeking a Senior Backend Engineer to lead the evolution of the Collect platform for international expansion and acquisition integration.

You will design and scale real‑time transaction systems, support multi‑currency payments, and build a shared ledger layer across lines of business.

This hands-on role demands 6+ years of backend experience, strong API design skills, and a pragmatic approach to evolving complex systems in a fast-moving ecommerce environment.

Qualifications

• 6+ years of backend engineering experience.
• Proven track record building scalable APIs and services.
• Experience with payment, ledger, or transaction systems.
• Familiarity with Elixir and GraphQL is a plus.

Responsibilities

• Own backend services in a high‑scale, real‑time environment.
• Design distributed systems and APIs for global transactions.
• Lead architectural decisions across transaction and platform systems.
• Mentor engineers and raise backend engineering standards.
• Collaborate with frontend, mobile, and Live teams to deliver global experiences.
• Implement robust, scalable APIs and services with strong ownership.

Skills

Backend engineering

Distributed systems

APIs design

Elixir

GraphQL

Payments/ledger experience

Ecommerce domain

Job description

Fanatics Collectibles in London is seeking a Senior Backend Engineer to lead the evolution of the Collect platform for international expansion and acquisition integration.

You will design and scale real‑time transaction systems, support multi‑currency payments, and build a shared ledger layer across lines of business.

This hands-on role demands 6+ years of backend experience, strong API design skills, and a pragmatic approach to evolving complex systems in a fast-moving ecommerce environment.