Portfolio Reporting & Project Assurance Manager

Company: Harnham
Apply for the Portfolio Reporting & Project Assurance Manager
Location: London
Job Description:

Portfolio Reporting & Project Assurance Manager

6 Months – Option to go perm

London – 2 Days Per Week

Outside IR35

£400-450 per day

We are supporting a public sector organisation delivering large-scale sustainability and housing programmes across London and are seeking an experienced Portfolio Reporting & Project Assurance Manager to establish and mature a PMO function within a growing delivery environment.

This is a key role focused on developing governance frameworks, portfolio reporting, project assurance processes and project management standards across a complex portfolio of programmes. The successful candidate will work closely with senior stakeholders, delivery teams and technical partners to improve visibility, accountability and decision‑making across the organisation.

Key Responsibilities

  • Establish and develop PMO governance, assurance and reporting frameworks.
  • Design and implement project and portfolio management standards, processes and controls.
  • Develop portfolio‑level reporting, dashboards, KPIs and management information for senior leadership.
  • Create and maintain governance forums, stage gate processes, RAID management and change control procedures.
  • Lead project and programme assurance activities, identifying delivery risks and recommending corrective actions.
  • Develop business cases, options appraisals and recommendations to support investment decisions.
  • Support the selection, procurement and implementation of project portfolio management tooling.
  • Embed a culture of project management best practice across delivery teams.
  • Provide portfolio oversight across multiple programmes, ensuring alignment to strategic objectives.
  • Work with technical teams to translate business requirements into reporting, governance and delivery improvements.
  • Support resource planning, prioritisation and portfolio decision‑making activities.

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Posted: July 8th, 2026