Senior Specialist Infrastructure Engineer (ServiceNow Developer) - Companies House - HEO

£40,398 with an additional DDaT allowance of £4,350 - £11,000 available
Published on

Full-time (Permanent) £40,398 with an additional DDaT allowance of £4,350 - £11,000 available
Published on 19 September 2025 Deadline 28 September 2025

Location

About the job

Job summary

Are you highly motivated, customer-focused, and interested in digital services?

Then come and join our transformative digital services!

We’re looking for an experiencedSenior ServiceNow Developer to join our team and play a key role in the development, support, and enhancement of our ServiceNow platform. This role focuses on delivering robust ITSM and ITOM solutions, driving automation, supporting platform upgrades, and improving the user experience through the Service Portal.

Companies House offers a flexible and welcoming culture that promotes a healthy work life balance as well as a proactive approach to wellbeing that allows us to be our best at work. We recognise that people are the key to our success so offer a fantastic benefits package including flexible working with no core hours, 30 days annual leave, 8 bank holidays and 1 privilege day as well as enrolment into the Civil Service Pension scheme with a contribution rate averaging 28%.

• Companies House cannot offer Visa sponsorship to candidates through this campaign.
• Occasional overtime and out of hours working, may be required. Applicant must be flexible in their working pattern, to maintain cover of the Live service.
• Security Clearance is an essential requirement. You must have been in the UK for at least 3 of the last 5 years to meet the minimum residency requirement. No adjustments or exceptions can be made to this criterion. Please see 'Things you need to know' section below for more information.

Reporting to the Lead Specialist Infrastructure Engineer, you’ll support and enhance the ServiceNow platform within the Technical Support Team.

As aSenior Specialist Infrastructure Engineer (ServiceNow Developer) you will:

• Be involved in incident resolution, bug fixes, process creation, and user training
• Design, develop, and maintain ServiceNow applications and modules
• Configure and enhance ITSM and ITOM features to meet business needs
• Support and enhance the ServiceNow Service Portal, ensuring usability, accessibility, and performance
• Automate workflows and improve service delivery using ServiceNow capabilities
• Support platform upgrades, ensuring compatibility and performance across modules
• Integrate ServiceNow with external systems via REST/SOAP APIs
• Troubleshoot issues and provide technical support across the platform
• Collaborate with business and IT teams to gather requirements and deliver scalable solutions
• Continual review of the effectiveness and efficiency of existing ITIL and IT processes
• Provisioning of Knowledge Base solutions, Event Dashboards, Reports, and Analytics to Business and IT users
• Customer interaction and office-wide communications

Where will you be working?

You will be aligned to our Cardiff office, where you will be expected to attend on a regular basis. We are currently using a hybrid approach to the way we work which provides opportunities for you to be adaptable in the way you work so that you can achieve a healthy balance between your work and home life. The degree of choice you have will depend on your role and your day-to-day work activities. Your manager will agree regular patterns of attendance with you, however you may be required to make yourself available to attend the office more frequently when required to meet business needs.

Person specification

The following experience and skills will be assessed at sift and interview.

We’re looking for a Senior Specialist Infrastructure Engineer who is:

• Adaptable and calm under pressure, able to manage shifting priorities
• Quick to learn, with a proactive approach to upgrades and new features
• Works well independently and in teams, using initiative and strong people skills
• Collaborative and confident in presenting new features and promoting services
• Clear communicator, engaging with both technical and non-technical audiences
• Customer-focused, delivering inclusive training for all skill levels

The successful candidate will have:

• Proven experience as a ServiceNow Developer, or similar, in enterprise environments
• Solid understanding of ITSM and ITOM modules and best practices
• Ability to work independently and collaboratively in a fast-paced environment
• Excellent communication and stakeholder engagement skills
• Strong proficiency in ServiceNow, or similar, scripting and configuration
• Hands-on experience with platform upgrades and release management
• Experience supporting and customising a Service Portal

While we are interested in candidates’ transferrable skills and experience, please let us know if you have any of the following:

• ITIL4 Certification
• ServiceNow certifications (e.g., CSA/Admin Foundation, ITSM, ITOM)
• Familiarity with Agile development and DevOps practices
• Understanding of GDS (Government Digital Service) standards
• Knowledge of WCAG (Web Content Accessibility Guidelines) and accessibility best practices

Behaviours

We'll assess you against these behaviours during the selection process:

• Changing and Improving
• Managing a Quality Service
• Delivering at Pace

Technical skills

We'll assess you against these technical skills during the selection process:

• Experience as a ServiceNow Developer, or similar, in enterprise environments
• Understanding of ITSM and ITOM modules and best practices