ServiceNow Developer (App Engine & Custom Apps)

Business Unit: Application Architecture & Engineering - Digital Platforms Practice

Location: Singapore (Hybrid / Client-Facing)

Role Overview: The ServiceNow Developer will be responsible for designing, developing, implementing, and maintaining solutions on the ServiceNow platform, with a focus on App Engine, custom applications, and workflow automation. The role requires hands-on experience in scripting, UI development, integrations, security configuration, and platform governance to deliver scalable enterprise solutions.

Primary Responsibilities

. Design, develop, and maintain ServiceNow custom applications and workflows aligned to business and architectural requirements.

. Develop applications using ServiceNow App Engine, including:

. Data model creation

. Access control rules (ACL)

. Business logic and server/client-side scripting

. UI form and layout design

. Build and maintain Service Portal components including custom widgets, AngularJS, Bootstrap, HTML/CSS.

. Design and implement integrations using REST/SOAP, including secure authentication (OAuth, SAML) and data parsing (JSON, XML).

. Configure and manage MID Server for secure on-premises integrations.

. Build workflow automation using Flow Designer, Integration Hub, and reusable subflows.

. Develop UI experiences using Now Experience UI Builder and manage table relationships using Table Builder.

. Apply ServiceNow security model, RBAC, scoped application permissions, and governance best practices.

. Participate in sprint planning, code reviews, testing cycles, and release deployments.

. Create and maintain technical documentation and knowledgebase materials.

. Mentor junior developers and support platform administrators when required.

Technical Skills Required

. Strong proficiency with ServiceNow scripting:

. JavaScript, Business Rules, Client Scripts, Script Includes

. UI Policies, UI Actions, UI Scripts

. Hands-on experience with:

. App Engine Studio, App Engine Templates, scoped app development

. Service Portal development with AngularJS, Bootstrap, HTML/CSS

. Experience in:

. Integrations via REST/SOAP

. Authentication (OAuth / SAML)

. JSON and XML payload handling

. Experience configuring and leveraging MID Server for secure hybrid connectivity.

. Proficiency in Flow Designer and Integration Hub for automation.

. Familiarity with ITIL / ITSM concepts and enterprise service management practices.

. Experience using Now Experience UI Builder and custom component configuration.

. Understanding of:

. ServiceNow security & RBAC models

. Cross-scope access control

. Governance and deployment pipelines for App Engine apps.

Additional Requirements

. ServiceNow certifications highly preferred:

. ServiceNow Administrator (CSA)

. ServiceNow Application Developer (CAD)

. ServiceNow Implementation Specialist (any stream)

. Experience working in Agile delivery environments.

. Proficiency with version control tools (e.g., Git).

. Strong problem-solving, debugging, and analytical skills.

. Effective communication skills for stakeholder engagement and documentation.

Key Responsibilities (Leadership & Delivery Alignment)

. Lead or contribute to technical design discussions ensuring alignment with enterprise architecture standards.

. Develop and support reusable frameworks, integration patterns, and governance guidelines.

. Ensure code quality, performance optimization, and adherence to best practices.

. Troubleshoot and resolve complex issues across environments.

. Support release planning, migration, and production deployment activities.

Experience Level

. Minimum 5+ years of hands-on ServiceNow development experience.

. Minimum 3+ years experience developing applications with ServiceNow App Engine.

. Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent experience.

. Demonstrated track record delivering ServiceNow solutions in enterprise environments.