MuleSoft API Integration Engineer

Singtel; Singapore; On-site; Confidential; Full time

Job summary

Singtel is seeking an Integration Engineer in Singapore to bridge business and technical teams, delivering API-based connectivity across enterprise systems. You will work with MuleSoft to define interfaces, data mappings, and governance aligned with architecture and business goals.

You will collaborate with stakeholders, document requirements, and support end-to-end delivery from planning to UAT, while promoting API lifecycle best practices and reuse across applications.

Qualifications

• Degree in Computer Science / Engineering or related discipline.
• Hands-on experience with MuleSoft Anypoint Platform, including API management and integration lifecycle.
• 3–5 years of experience in large-scale IT integration projects.
• Experience in Agile Scrum teams delivering integration or platform features in iterative sprints.
• Proficiency in writing user stories, acceptance criteria, and maintaining a well-groomed product backlog using Jira or Azure Boards.
• Proficiency in designing Mule components (Mule ESB, Anypoint Studio, ETLs, flows, MEL, message modelling, Routing, Filtering, Database, Exception Handling, API Management).
• Understanding of MCP architecture: resources, tools, prompts/skills, and how they provide context to AI models.
• Knowledge of how to integrate MCP with enterprise systems (e.g., via HTTP, webhooks, or event buses) for orchestration

Responsibilities

• Collaborate with business users, product owners, and architects to gather, document, and refine integration requirements.
• Translate business processes and functional requirements into API specifications, data mappings, and integration use cases.
• Conduct analysis between existing systems and desired integration outcomes.
• Work closely with MuleSoft developers and architects to define API interfaces, message structures, and validation rules.
• Create detailed specifications including RAML or TMForum definitions, payload examples, and data transformation logic.
• Participate in API design reviews and ensure adherence to enterprise integration standards and governance frameworks.
• Support end-to-end integration delivery across planning, testing, and deployment phases.
• Prepare project documentation such as user stories, process flows, sequence diagrams, and integration test cases.
• Validate implemented APIs against business requirements and assist in Sanity Test and UAT.
• Act as the liaison between business users, ServiceNow development teams, and vendors (e.g., Mulesoft, ServiceNow, in-house core systems).
• Communicate project status, risks, and issues effectively to both technical and non-technical stakeholders.
• Assist in maintaining API documentation portals and reuse catalogues.
• Identify opportunities to streamline integration processes and promote reuse across applications.
• Contribute to establishing best practices for API lifecycle management, security, and versioning.

Skills

MuleSoft Anypoint

API Management

Integration Lifecycle

Agile Scrum

Jira or Azure Boards

Education

Degree in Computer Science / Engineering

Tools

Mule ESB

Anypoint Studio

RAML

TMForum

ETLs

Job description

Singtel is seeking an Integration Engineer in Singapore to bridge business and technical teams, delivering API-based connectivity across enterprise systems. You will work with MuleSoft to define interfaces, data mappings, and governance aligned with architecture and business goals.

You will collaborate with stakeholders, document requirements, and support end-to-end delivery from planning to UAT, while promoting API lifecycle best practices and reuse across applications.