Mulesoft Lead Engineer (SC Clearance required)

NTT DATA UK is seeking a MuleSoft Engineer to join our growing practice. You will be part of an agile team building digital products, enhancing and developing software components. Your main responsibility will be to deliver clean, maintainable, and well-tested code that adheres to SOLID principles. You will work collaboratively across Quality Assurance, DevOps, and other development teams, sharing knowledge, supporting onboarding, and contributing to code reviews. Due to the nature of the work/client you must have or be eligible for SC Clearance (British Passport holder or 5 years continuous residence in the UK).

What you’ll be doing:

• Deliver high-quality, maintainable code and development outcomes.
• Manage data exchange between backend services, front-end applications, and third-party APIs.
• Develop server-side logic in collaboration with Business Analysts and QA, ensuring requirements are met and code is testable.
• Lead and contribute to technical user stories, focusing on integration and service optimisation.
• Document solutions using diagrams, flowcharts, and clear code comments.
• Ensure compliance with quality standards, including automated testing and code reviews.
• Address non-functional requirements such as performance, monitoring, and operational support.
• Support releases through all development environments, maintaining quality and reliability.
• Contribute to skill development and technology adoption within the team.
• Present technical concepts in demos and participate in user feedback sessions.
• Provide accurate work estimates and support agile planning.
• Balance delivery pace with documentation, test automation, and technical debt reduction.

What experience you’ll bring:

• Essential Experience delivering integration microservices using MuleSoft best practices.
• Proven ability to write clean, maintainable code following SOLID principles.
• Designing RAML, REST APIs, flow control, and error handling.
• Hands-on experience with the Anypoint Platform (CloudHub, VPC, VPN, DLB, firewalls, and cloud technologies).
• Securing and managing APIs using API Manager.
• Developing frameworks for error handling and logging.
• Managing the API development lifecycle from design to governance and management.
• Working with batch message processing, Salesforce, file, and database connectors.
• Using MUnit and practising test-driven development.
• Experience with REST, HTTP, MQ, JSON, XML, and SOA.
• Familiarity with CI/CD pipelines (Maven, Jenkins, Bitbucket, Git, MuleSoft).

Desirable:

• Experience working in consulting or public sector environments.
• Experience as a microservices developer.
• MuleSoft certification.

Education and Other Requirements:

• Typically, candidates have substantial experience in MuleSoft integration development, but we welcome applicants with a range of backgrounds and relevant skills.
• Degree in a relevant field (e.g. Computer Science, Statistics) or equivalent practical experience.
• Eligible for SC clearance (requires 5 years’ residency in the UK; citizenship is not mandatory).
• Able to adapt to changing priorities and client needs.

Who we are:

We’re a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects. Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation.