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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Interim Systems Integration Manager - **Company:** Featuredneweasy - **Location:** London, UK - **Experience:** Expert - **Salary:** £156,000.0 - £182,000.0 - **Contract:** Contract - **Skills:** Spreadsheets, Data Migration, Human Resources Information System (HRIS), Sage Accounting, Data Streaming, Systems Architecture, Systems Integration, Working Model 2D, Information Technology, Operational Systems, Data Management, Hubspot - **Published:** September 15, 2026 - **Apply:** https://www.reed.co.uk/jobs/interim-systems-integration-manager/57348800 ## About the Role Essential * Proven experience delivering complex systems integration or transformation programmes. * Strong background in ERP, CRM, HRIS or professional services systems implementation. * Experience working within multi-site or multi-entity organisations. * Excellent stakeholder management skills, including engagement with senior leadership teams. * Strong process mapping and business analysis capability. * Experience managing software vendors and implementation partners. * Ability to work autonomously and drive outcomes in a fast-paced environment. Desirable * Sage Intacct implementation experience. * HubSpot implementation experience. * Employment Hero knowledge. * Experience with Scoro or similar PSA/project accounting platforms. * Exposure to M&A integration programmes. * Experience within private equity-backed organisations. * Background working within professional services, consulting, engineering or project-based businesses. ## Description We are looking for an experienced Interim Systems Integration Manager to lead the implementation, integration and rollout of a new technology stack, ensuring systems, data and processes are aligned across the group. This is a hands-on transformation role, combining programme leadership, process design, systems integration and stakeholder management. You'll be responsible for creating a scalable operating model that supports future growth and acquisitions. Key Systems - The programme includes the implementation and integration of: Sage Intacct (ERP) HubSpot (CRM) Employment Hero (HRIS) Scoro (Project Management, Resource Planning & Time Recording), * Systems Design & Architecture * Map current business processes and data flows across multiple operating companies. * Design the future-state systems architecture and operating model. * Define system ownership and master data structures. * Remove manual processes, duplicate data entry and spreadsheet-driven workarounds. * Ensure data flows seamlessly across all platforms. Systems Integration * Lead the integration of ERP, CRM, HR and project operations systems. * Define integration requirements and oversee delivery with implementation partners. * Ensure alignment of customer, employee, project and financial data across platforms. * Support data migration, testing and user acceptance activities. * Create scalable integration standards for future acquisitions. Programme Delivery * Develop and manage project plans, milestones and delivery roadmaps. * Coordinate internal stakeholders, software vendors and third-party partners. * Manage risks, dependencies and delivery timelines. * Drive accountability across multiple workstreams and business units. * Provide regular progress updates to senior leadership. Business Transformation * Facilitate process mapping and discovery workshops. * Challenge existing ways of working and identify opportunities for improvement. * Standardise processes across multiple businesses. * Support change management, adoption and user engagement. * Build a repeatable implementation playbook for future growth initiatives. Reporting & Data Visibility * Ensure systems support real-time business reporting and operational visibility. * Enable reporting across project profitability, utilisation, WIP, resource planning and financial performance. * Work closely with business leaders to ensure reporting requirements are embedded within the solution design., * Initial 4-month contract * Outside IR35 * Hybrid working model * London-based meetings when required * Travel to UK operating businesses as needed * Immediate start preferred Skills * CRM * ERP * HRIS * IT systems * Hubspot * Scoro * Sage Intacct * Employment Hero * Project Management * systems integreation ## Related Videos - [Launching a marketplace on-time: A lesson in taking shortcuts using spreadsheets!](https://www.wearedevelopers.com/videos/477-launching-a-marketplace-on-time-a-lesson-in-taking-shortcuts-using-spreadsheets) - [What if your HR software adapted to you, not the other way around?](https://www.wearedevelopers.com/videos/100259-what-if-your-hr-software-adapted-to-you-not-the-other-way-around) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) - [Swapping a Data Warehouse at Runtime: Zero-Downtime Migration Without Changing a Single Client](https://www.wearedevelopers.com/videos/100311-swapping-a-data-warehouse-at-runtime-zero-downtime-migration-without-changing-a-single-client) - [Get Your Stack Together: Building the Right Recruiting Tech](https://www.wearedevelopers.com/videos/1295-get-your-stack-together-building-the-right-recruiting-tech) - [HR ROBO SAPIENS: Decoding AI Agents and Workflow Automation for Modern Recruitment](https://www.wearedevelopers.com/videos/1470-hr-robo-sapiens-decoding-ai-agents-and-workflow-automation-for-modern-recruitment) ## Related Articles - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Best Companies to Work For in The UK: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/186-best-companies-to-work-for-in-the-uk-top-25-companies-in-2023) - [Top HR Tech Conferences in 2024](https://www.wearedevelopers.com/magazine/303-top-hr-tech-conferences-in-2024) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer)