Senior Java Integration Engineer — Shopify & ERP/OMS

La Fosse Associates; Greater London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading recruitment agency seeks an Integration Engineer for a 6+ month contract in Greater London. The candidate will design middleware to connect Shopify with backend systems. Key responsibilities include developing integration logic, implementing data flows using REST/GraphQL, and collaborating with backend engineers. Essential skills include backend development, Java, and API design. The position offers £400 per day, with 3 days onsite in Paddington.

Qualifications

• Experience with Shopify integration patterns and architecture design.
• Strong skills in backend development and API design.
• Familiarity with testing standards and governance.

Responsibilities

• Develop and maintain custom Shopify app logic and middleware services.
• Design and implement data flows using REST/GraphQL APIs.
• Collaborate with backend engineers for integration endpoint design.

Skills

Backend Development (Micronaut preferred)

Java

REST

Kafka

API Design

Unit tests

Tools

Dynatrace

New Relic

Azure Monitor

Job description

A leading recruitment agency seeks an Integration Engineer for a 6+ month contract in Greater London. The candidate will design middleware to connect Shopify with backend systems. Key responsibilities include developing integration logic, implementing data flows using REST/GraphQL, and collaborating with backend engineers. Essential skills include backend development, Java, and API design. The position offers £400 per day, with 3 days onsite in Paddington.