System Integration Engineer (Mulesoft) (Singapore, Singapore)

An empowering career at Singtel begins with a Hello. Our purpose, to Empower Every Generation, connects people to the possibilities they need to excel. Every "hello" at Singtel opens doors to new initiatives, growth, and BIG possibilities that takes your career to new heights. So, when you say hello to us, you are really empowered to say…“Hello BIG Possibilities”.

An Integration Engineer with hands-on experience in API integration projects. The ideal candidate will bridge the gap between business stakeholders and technical teams, driving seamless API-based connectivity across systems and ensuring integration solutions align with enterprise architecture and business objectives.

Make an impact by:

Business Requirements & Analysis

- 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.

API Integration & Design Support

- 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.

Project Delivery & Documentation

- 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 user acceptance testing (UAT).

Stakeholder Management

- 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.

Governance & Continuous Improvement

- 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 for Success:

- 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.

- Hands-on experience working 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 tools like 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 (Model Context Protocol) 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