Acquisition Integration Project Manager (Contract)

Location: London / UK Sites (20% onsite, 80% remote)
Contract Length: 12 months
Rate: £80-£100 per hour (7.5 hour working day)
Security Clearance: SC required, DV highly desirable / expected

We are seeking an experienced Acquisition Integration Project Manager to deliver a complex, high-value acquisition integration that supports an ambitious growth agenda and enhances secure software capabilities for customers.

This is a high-profile, delivery-focused role with significant visibility and influence. You will play a pivotal role in shaping outcomes, driving integration strategy, and ensuring delivery excellence across multiple functions and senior stakeholders.

The role operates on a hybrid model, with approximately 20% onsite working across London or other UK sites and 80% remote, enabling effective collaboration while offering flexibility.

What you'll do

As an Acquisition Integration Project Manager, you will:

• Lead the end-to-end delivery of a complex acquisition integration, ensuring alignment with strategic objectives, contractual commitments, and financial targets.

• Influence and manage senior internal and external stakeholders to ensure successful integration planning and execution.

• Oversee commercial negotiations and contractual change management in collaboration with Contract Managers.

• Drive cross-functional delivery across Finance, HR, IT, Operations, and Legal to ensure timely and cost-effective outcomes.

• Own project-level risk, opportunity, and contingency management.

• Inspire, motivate, and empower integration teams, fostering high performance and accountability.

• Report progress to senior leadership and contribute to longer-term strategic planning.

• Champion strong governance, continuous improvement, and knowledge sharing across integration projects.

What you'll bring

You will be a confident delivery leader with experience operating in complex, highly regulated environments, bringing:

• Proven expertise leading complex, multi-disciplinary projects or programmes, ideally involving M&A or business integration.

• Strong strategic thinking with the ability to influence at executive level.

• Excellent commercial acumen and negotiation skills.

• Experience mentoring and developing high-performing project teams.

• Alignment with the APM Competency Framework at Project Manager (Advanced) or Programme Manager level.

• Eligibility for certified membership of APM, PMI, AcostE, or an equivalent professional body.

Essential experience

• Leadership of complex, high-value projects across the full lifecycle.

• Executive-level stakeholder management and communication.

• Strong business and commercial awareness.

• Solid understanding of risk management, governance, and performance management.

• Ability to shape strategic direction and drive continuous improvement.

Desirable experience

• Experience within the UK Defence or Cyber Security environment.

• Direct experience delivering Mergers & Acquisitions or acquisition integration projects.