Business Systems Engineer

Nationwide Air Conditioning Limited; Edenbridge, Greater London; Hybrid; GBP 65,000 - 100,000; Full time

Job summary

Nationwide Air Conditioning Limited seeks an IT Systems Lead to own Dynamics 365 Business Central administration across finance, projects, service and purchasing. You will manage user access, approval workflows, and job queues while enhancing BC interfaces with Solarvista and APIs.

The role covers Microsoft 365, Azure, and Power Platform automation, plus supplier management and security oversight. You will work hybrid from UK sites, lead BC extensions like Continia, and coordinate with external

Qualifications

• 3–5 years with Dynamics 365 Business Central in admin/support/consulting
• Configuration across at least two BC modules with user setup and workflows
• Experience integrating field service or job management with ERP
• Power Platform: Power Automate, Power Apps, Power BI
• Microsoft 365 administration, Entra ID, Exchange Online, SharePoint, Intune

Responsibilities

• Act as system owner for Dynamics 365 BC across finance, projects, service and purchasing
• Manage user setup, permission sets, and approval workflows
• Monitor job queues, defect processing, and contract/PPM job generation
• Maintain BC and Solarvista interface, defects, and job creation
• Build/document APIs, app registrations, and OData endpoints
• Manage extensions like Continia and release cycles
• Define requirements and test external development
• Maintain dimensions, master data, and Power BI reporting
• Administer Microsoft 365 tenant and Azure subscriptions
• Provide first/second line IT support and device setup
• Create Power Platform automations to reduce manual work
• Manage IT and BC supplier relationships
• Own cybersecurity controls and incident response processes

Skills

Dynamics 365 Business Central

System integration

Power Platform

Microsoft 365 administration

Azure administration

IT support

Documentation and governance

Education

Microsoft certifications (MB-800, AZ-104, MS-102)

Tools

Continua document capture add-on

Solarvista interface

REST APIs / OData / JSON / OAuth 2.0

Job description

Nationwide Air Conditioning is an employee-owned HVAC contractor delivering turnkey retrofit and design-and-build projects from £50k to £3m, often in live, occupied buildings.

Responsibilities

Business Central and Integrations

• Act as system owner for Dynamics 365 Business Central across finance, projects, service, and purchasing
• Manage user setup, permission sets, and approval workflows, including quote and purchase approval limits
• Monitor and recover job queues, including defect processing and contract and PPM job generation
• Maintain and improve the Business Central and Solarvista interface, including defect records and job creation
• Build and document APIs, app registrations, and OData endpoints for other systems and for AI development
• Manage extensions such as Continia, the Microsoft release cycle, and sandbox testing before production release
• Define requirements, test, and accept any development carried out by an external partner
• Maintain dimensions, master data, role centres, and Power BI reporting

Microsoft 365, Azure, and IT Support

• Administer the Microsoft 365 tenant: Entra ID, Exchange Online, SharePoint, Teams, OneDrive, and Intune
• Administer Azure subscriptions and cost management, and manage Microsoft licensing across the estate
• Set up and decommission users end to end, including accounts, licences, mailboxes, and Business Central profiles
• Provide first and second line support, setup and issue devices, and maintain the IT asset register
• Build Power Platform automations where they remove manual administrative effort
• Manage the remaining IT and Business Central supplier relationships

Security and Continuity

• Own Cyber Essentials certification and the technical controls behind the company cyber insurance
• Act as first responder for suspected security incidents, escalating to the specialist supplier for remediation
• Own backup, restore testing, and disaster recovery for Microsoft workloads and business data
• Govern API and application permissions, so elevated access is granted only on a reviewed and recorded basis

First Three Months

Both incumbent suppliers remain engaged during a three month handover.

• Month 1: document the estate, take over user administration, licensing, and first line support, and establish a single record of IT and systems requests
• Month 2: take over Business Central administration and the Solarvista interface, test backup and restore, and establish the change and release process
• Month 3: hold routine operations independently, agree a forward development plan, and agree revised supplier terms

Essential Experience and Skills

• 3 to 5 years with Dynamics 365 Business Central in an administration, support, or consulting role
• Configuration experience across at least two modules, and practical experience of user setup, permission sets, approval workflows, and job queues
• System integration experience: REST APIs, OData, JSON, and OAuth 2.0
• Microsoft 365 administration, including Entra ID, Exchange Online, SharePoint, and Intune
• Working knowledge of Azure, including subscriptions, app registrations, and cost management
• Hands-on IT support: user setup, device builds, and fault diagnosis
• Comfortable as the only person in the function, clear about when to elevate, and willing to hold suppliers to account
• Documents work properly rather than holding knowledge personally
• Right to work in the UK
• AL development for Business Central extensions
• Experience with Continia or a comparable document capture add-on
• Experience integrating a field service or job management platform with an ERP
• Power Platform: Power Automate, Power Apps, and Power BI
• Cyber Essentials experience, and working knowledge of firewalls and network fault diagnosis
• Microsoft certifications such as MB-800, AZ-104, or MS-102
• Experience in construction, building services, M&E, or another field service business

Location and Development

Hybrid, based at Edenbridge or London, with occasional travel between the two. Remote working can be discussed, on the understanding that device builds and hands‑on support need regular presence where staff are based.

This is a newly created role and the person appointed will define how it operates.

We support Microsoft certification and relevant training, and as the company grows towards £30 million turnover by 2030 there is scope to develop into a broader systems lead position.