ITSM Tooling Developer - ServiceNow, Halo, Salesforce

We are seeking an experienced ITSM Tooling Developer/Technical Consultant with deep expertise across modern service management platforms such as ServiceNow, Halo, or equivalent. You will play a key role in delivering complex tooling implementations, integrations, and enhancements for enterprise clients, working both independently and as part of a high-performing development team. This role is ideal for someone who combines technical mastery with strong consulting skills, stakeholder engagement, and a solid grounding in ITIL and agile delivery. This role is in one of our expanding consultancies who have an amazing reputation in the ServiceNow and Halo space.

Key Responsibilities

  • Lead installation, configuration, customisation, and ongoing development of ITSM tooling solutions.

  • Build and enhance UI forms, workflows, notifications, fields, and scripted components (client-side and Server Side JavaScript).

  • Deliver expert-level troubleshooting, root-cause analysis, and performance optimisation.

  • Integrate ITSM platforms with external systems using SOAP, REST, and other modern API frameworks.

  • Work with infrastructure and application discovery tools to map services and dependencies.

  • Support Event Management implementations and integrate tooling with monitoring solutions.

  • Apply structured analysis, solution design, and programming techniques to deliver robust, scalable solutions.

  • Collaborate within agile teams, contributing to epics, user stories, backlog refinement, and sprint delivery.

  • Engage directly with customers, providing clear communication, technical guidance, and delivery assurance.

  • Manage workload effectively to meet tight deadlines across multiple concurrent engagements.

Skills & Experience

You will need to demonstrate relevant experience through clear examples:

  • Strong experience with ServiceNow, Halo, or similar ITSM platforms.

  • Expert-level installation, configuration, support, and development experience.

  • Advanced configuration and customisation skills across UI, workflows, notifications, and Scripting.

  • Deep troubleshooting capability across complex tooling environments.

  • Experience delivering both independently and as part of a development team.

  • Strong understanding of ITIL concepts and service life cycle processes (ITIL v3 Foundation minimum; advanced certifications preferred).

  • Proven experience integrating ITSM tools with external interfaces and data sources.

  • Experience with infrastructure/application discovery tooling.

  • Strong understanding of Event Management and integration with monitoring platforms.

  • Solid grounding in structured analysis, design, and programming techniques.

  • Strong experience with SOAP and REST API integrations.

  • Experience working in an agile delivery environment.

Job Details

Company
Agilesource Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
Posted