Mulesoft Developer - Fully Remote

Job Title: Mulesoft Integration Developer
Location: UK based/fully remote
Salary/Rate: £42 per hour inside IR35
Start Date: 20/07/2026
Job Type: Contract - 6 months

Company Introduction
We have an exciting opportunity now available with one of our sector-leading retail clients! They are currently looking for a highly skilled MuleSoft Developer to design, build, and deliver MuleSoft APIs for a complex retail and E-commerce implementation. The role involves hands on development, and design experience within an agile, multi squad environment

Job Responsibilities/Objectives

• Design, develop, test, and maintain MuleSoft APIs and integrations aligned to an API-led connectivity approach (Experience, Process, and System layers).
• Build and expose RESTful and SOAP APIs in compliance with agreed interface contracts and enterprise API design standards.
• Create reusable connectors, templates, and integration patterns to accelerate delivery across teams.
• Produce thorough API documentation using RAML or OAS (OpenAPI Specification).
• Deploy, configure, and monitor Mule applications on CloudHub and Runtime Fabric.
• Implement robust error handling, alerting, and logging strategies to support operational excellence and SLA compliance.

Required Skills/Experience
The ideal candidate will have the following:

• Strong hands-on MuleSoft Anypoint Platform development experience.
• Proven experience delivering API-led integrations in an enterprise environment.
• Strong command of Mule 4.x runtime, DataWeave 2.x, and Anypoint Studio.
• Demonstrable experience deploying to CloudHub (shared or dedicated) and/or Runtime Fabric.
• Solid understanding of REST, SOAP, HTTP, JSON, XML, and related web standards.
• Experience working in Agile/Scrum and multi-squad environments.

Desirable Skills/Experience
Although not essential, the following skills are desired by the client:

• MuleSoft Certified Developer - Level 1 or Level 2 certification.
• Exposure to event-driven integration patterns using Anypoint MQ or Apache Kafka

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.