Mule Developer

Mule Developer 6 Month Contract Can be based across any of our Regional Centres Must be able to start WC 07/07/2025

About the Role :We are seeking a skilled Mule Developer to join our Check Challenge Appeal (CCA) development team. We are a dedicated, friendly team made up of product roles and technical developers/testers – delivering in an Agile manner to passionate and interested customers on behalf of the Value Office Agency (VOA). The ideal future colleague will be part of a Team of Developers/Testers responsible for our upgrade to Mule 4.

Responsibilities :

• The Mule developer will be responsible for the following tasks :
• Upgrade of APIs :Rebuild existing Mule 3.x APIs in Mule 4.4 adhering to updated best practice specifications .
• Development of New APIs: Build other required APIs in Mule 4.4 to best practice specifications as directed .
• Testing and Validation :Collaborate with testers to ensure APIs meet functional, non-functional, and performance criteria .Debug, resolve issues, and conduct regression testing as necessary .
• Collaboration with Team :Work closely within the wider team of CCA developers and testers to ensure consistency and quality in deliverables .
• Documentation :Document processes, updates, and lessons learned to provide a reference for future upgrades .
• Deliverable s :Upgraded/enhanced CCA APIs compatible with Mule 4.4 .Comprehensive testing results and documentation .Deployment-ready APIs ensuring smooth production transition .Technical documentation for the APIs rebuilt/enhanced during the work .
• Ongoing/Continuous Improvement :Identify opportunities for process and code improvements within the production environment .Proactively engage in troubleshooting, optimising, and scaling backend services to support growing business needs .
• Performance Metrics :Successful migration of all identified Mule 3.x APIs to 4.4 .Development and deployment of new APIs within defined timelines .Zero critical defects in production post-deployment .Positive feedback from stakeholders and users regarding the upgraded APIs .

Technologies :

• Mule ESB (Enterprise Service Bus ) - Key integration platform for managing and orchestrating service connectivity and data flows between applications .
• Mule Anypoint Studi o - Primary development environment for designing and debugging Mule ESB flows .
• RabbitM Q - messaging bus that facilitates communication between different services/components in the system by reliably queuing, routing, and delivering messages .
• Jav a - Core language for backend services, necessary for writing, maintaining, and troubleshooting applications that integrate with Mule ESB .
• MySQL Databas e - Database management and querying, essential for accessing, updating, and managing application data .
• Elastic Stack (Elasticsearch, Kibana ) - Primarily used for monitoring and log analysis; leveraging this stack to diagnose production issues, track service performance, and support troubleshooting .
• Bamboo CI/C D - Continuous integration and deployment tool for automating builds, testing, and deployments in both dev and production environments .
• Stash (Git ) - Version control for managing and tracking code changes, supporting collaboration across the development team .
• Jir a - Issue and project tracking tool, used to coordinate production support requests, development tasks, and release management .

Qualifications :

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent experience .
• 3+ years of Mule: confident understanding of MuleSoft’s Anypoint Platform, including API development, integration patterns and Mule 4 architecture .
• Upgrading knowledge: Experience upgrading from Mule x to Mule 4.4 including migration of code, connectors, and dependencie sConnector Upgrades: Familiarity with updating legacy connectors to Mule 4 compatible versions building bespoke or migrating to new connectors .
• Proficiency in backend programming languages such as Java, Python, Node.js, or similar .
• Familiarity with production environments and CI/CD pipelines .
• Experience with service monitoring, debugging, and troubleshooting tools .
• Ability to work collaboratively in a fast-paced environment, balancing multiple priorities .