Back-end Developer (Java & Spring Boot/GCP, Inside IR35)

Company: Methods
Apply for the Back-end Developer (Java & Spring Boot/GCP, Inside IR35)
Location: London
Job Description:

Requirements

  • Java Spring Boot: Confirmed level proficiency for the architectural rebuild
  • Database: PostgreSQL
  • Cache: Redis/Valkey
  • Architecture: REST Architecture and Event-Driven architecture
  • Cloud & Infrastructure: Google Cloud Platform GCP and Kubernetes clusters
  • (Desirable) Experience with Python to facilitate the transition of Legacy components
  • (Desirable) Private sector experiences

What the job involves

  • Methods is looking for a Back End Developer specialising in Java Spring Boot and GCP(Google Cloud Platform) to join our team within the private Sector Business unit
  • Duration: 6 month initially
  • Play a role in migrating and rebuilding our core architecture in Java Spring Boot to align with a composable, cloud-native landscape
  • Connector Development: Design and optimize technical connectors for a diverse mix of global channels, including generalist marketplaces, social commerce (eg, TikTok Shop), and quick-commerce (eg, Glovo, Deliveroo)
  • Catalog Publication Flow: Refocus efforts on rebuilding the catalog publication flow, addressing technical complexities such as category mapping, product variant synchronization, and asynchronous marketplace APIs
  • Business Logic Migration: Collaborate on transferring complex Legacy business rules (pricing calculations, stock filtering, and fulfilment decisions) into the dedicated BCP assets to ensure OMC focuses purely on orchestration and connectivity
  • System Reliability: Ensure 100% accurate Real Time synchronization of stock and price updates to prevent financial discrepancies and enhance the customer experience

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Posted: June 13th, 2026