ServiceNow Developer (App Engine & Custom Apps)

OPENSOURCE PTE. LTD.; Singapore; Hybrid; SGD 80,000 - 110,000; Full time

Job summary

A technology solutions company in Singapore is seeking an experienced ServiceNow Developer to design and implement solutions on the ServiceNow platform. The ideal candidate has over 5 years of hands-on development experience, especially with custom applications and App Engine. This role requires strong scripting skills and experience with REST/SOAP integrations in a hybrid environment. The position offers opportunities for professional growth in a client-facing role.

Qualifications

• Minimum 5+ years of hands-on ServiceNow development experience.
• Minimum 3+ years experience developing applications with ServiceNow App Engine.
• Experience working in Agile delivery environments.

Responsibilities

• Design, develop, and maintain ServiceNow custom applications and workflows.
• Lead technical design discussions ensuring alignment with enterprise architecture.
• Create and maintain technical documentation.

Skills

ServiceNow scripting

JavaScript

REST/SOAP integrations

UI development

Agile methodologies

Education

Bachelor’s degree in Computer Science or related field

Tools

ServiceNow App Engine

Flow Designer

Version control tools (e.g., Git)

Job description

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 knowledge‑base 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
  • 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.