Business Systems Project Manager

• Location: Holborn, Camden, Greater London, United Kingdom
• Earnings: £ to £

ONNEC Group are a leading independent technology partner and global integrator, with over 30 years experience, and a 800+ team of global experts, specialising in providing end-to-end connectivity solutions that propel organisations everywhere.

From structured cabling to managed services, our end-to-end services give infrastructure that can be completely replied on. Design. Build. Deploy. Optimise. We offer a complete solution for business connectivity.

We are a rapidly growing organisation and finding and retaining the highest calibre of people is fundamental to us for the success of our business, we work hard to create a challenging, supportive and satisfying working environment for all our employees. ONNEC has successfully achieved the Investors in Diversity Foundational Award for our commitment to equality, diversity and inclusion in the workplace.

The Business Systems Project Manager leads the delivery of business systems projects across Onnec, ensuring system changes, migrations and implementations are delivered to agreed scope, quality, timeline, cost and business benefit. The role works closely with business stakeholders, IT, suppliers and regional teams to manage requirements, governance, testing, data readiness, change, adoption and transition to support.

What you'll be doing as our Business Systems Project Manager:

• Lead end-to-end delivery of business systems projects, including ERP, HR, workflow, reporting and operational platform initiatives.
• Define scope, requirements, deliverables, milestones, dependencies, RAID logs, governance routes and success measures with business and IT stakeholders.
• Coordinate cross-functional teams across Business Systems, IT, Finance, HR, Operations, Data, suppliers and regional stakeholders.
• Produce and maintain clear project plans, status reports, action logs, decision records, budget tracking, resource plans and stakeholder communications.
• Manage risks, issues, changes, dependencies and escalations proactively, ensuring timely decisions and transparent reporting to sponsors and leadership.
• Support data readiness, migration planning, testing, user acceptance, process mapping, training, communications and business change activities.
• Coordinate suppliers and internal teams to ensure system configuration, integrations, controls, reporting and support models are delivered effectively.
• Ensure projects follow Onnec governance, security, compliance, data protection, change management and documentation requirements.
• Drive adoption, benefits realisation and transition to support by embedding processes, ownership, knowledge transfer and post-go-live improvement actions.
• 2026 Focus: Lead the NetSuite rollout in the Nordics; manage the NetSuite migration from RSM; and support delivery of the HR system implementation, with strong governance, data readiness, testing, stakeholder engagement, adoption and transition-to-support planning.

What we're looking for in our Business Systems Project Manager:

• Extensive experience delivering business systems, ERP, HR, finance, workflow or operational platform projects, with strong planning, stakeholder management, supplier coordination, risk management and delivery governance skills.
• Demonstratable previous experience in delivering/implementing business systems/managed software projects in complex, international organisations
• Able to translate business requirements, process needs and data dependencies into clear scope, plans, actions, testing, adoption and support outcomes.
• Very familiar with Agile, hybrid and waterfall delivery methods; PMI/PMP, CAPM, Agile or Scrum Prince2 training
• Experience in delivering or supporting Netsuite
• Experience delivering / implementing HR system, ideally PeopleHR

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