Senior Business Applications & Systems Integration LeadMicrosoft Platform (Power Platform / Azure)PermanentWarrington (Hybrid - 2 days on-site)£75,000 - £95,000 depending on experienceHarvey Nash is proud to be partnered with a fast-growing, people-led construction business that is making a deliberate investment in its internal systems as part of its next phase of growth. Technology is viewed as a core operational enabler - not a side project - and the business is moving away from spreadsheet-heavy processes and disconnected tools towards a joined-up Microsoft platform that genuinely supports how teams work on the ground.This is a practical, operational environment where systems need to work for real workflows, with real consequences. The organisation is seeking a senior, hands-on technical leader to take full ownership of its internal applications and systems integration landscape, and to shape the long-term digital roadmap.This is a heavyweight opportunity offering genuine ownership, autonomy and influence.Why this role existsThe business is investing in a foundational internal systems platform to support continued growth and operational scale.This role exists to own that platform end-to-end. You will begin by delivering a bespoke internal application (already scoped and prototyped), before moving into defining and delivering a longer-term digital and systems integration roadmap across the organisation.This is not a delivery-only role, a support role, or a short-term project. It is a hands-on technical leadership position with long-term responsibility and trust.The missionAs the Senior Business Applications & Systems Integration Lead you will:Design, build and own core internal business applicationsIntegrate business systems into a coherent, Microsoft-based platformAct as the technical authority for how systems are designed, built and evolvedEmbed yourself in the business and shape how technology supports day-to-day operationsThis role suits someone who still enjoys being technically hands-on, but wants real ownership, influence and long-term impact.What you'll be doingPhase 1: Core Application DeliveryBuild a bespoke internal application supporting labour orders, approvals and CIS processesTranslate operational workflows into robust, maintainable systemsOwn architecture, data models, permissions and long-term design decisionsDeliver something that scales - not a short-term prototypePhase 2: Digital Roadmap & IntegrationDefine and lead a joined-up systems integration strategyDesign APIs, data flows and automations to reduce manual effort and spreadsheetsInfluence which systems are integrated, replaced or rationalisedDeliver dashboards and reporting underpinned by reliable dataPhase 3: Microsoft platform ownershipTake ownership of:Power Apps, Power Automate, Power BIAzure (Functions, Logic Apps, SQL, identity, storage)Microsoft 365 integrations (SharePoint, Teams, security)Set standards for architecture, documentation and governanceAct as the trusted technical voice for senior stakeholdersWhat we're looking for -The Senior Business Applications & Systems Integration Lead must have:Proven experience designing and building custom business applicationsStrong experience integrating multiple systems via APIs and data flowsDeep, hands-on experience across the Microsoft ecosystem (Power Platform & Azure)Senior-level judgement - including knowing what not to buildConfidence owning systems independently and standing by technical decisionsAbility to explain complex technical choices to non-technical stakeholdersIndustry background is not important - judgement, ownership and capability are.Why this role stands outGreenfield build followed by genuine long-term evolutionWhole-system ownership, not feature-level deliveryMicrosoft-first strategy with freedom to design properlyDirect access to senior decision-makersLow red tape, high autonomyClear opportunity to progress into more senior technology leadership as the business continues to grow