Location: West Sussex - Flexible Working dependant on candidate location.
Type: Permanent
Salary: (phone number removed) per annum + Permanent Benefits
The Role
We are seeking an experienced Portfolio Manager to lead the planning and delivery of a large-scale digital change portfolio. This is a senior leadership role accountable for translating strategic objectives into clear, executable delivery roadmaps and ensuring consistent, high-quality outcomes across multiple programmes and projects.
You will work closely with senior business and technology leaders to shape and deliver complex digital initiatives, balancing value, cost, risk, and delivery certainty. With accountability for portfolios exceeding 20m per annum, this role is central to ensuring digital delivery acts as a strategic partner to the wider business.
Key Responsibilities
Portfolio & Strategic Planning
Define and lead an end-to-end digital delivery strategy and roadmap aligned to strategic outcomes.
Prioritise and re-prioritise programmes as business needs evolve, maintaining focus on overall portfolio objectives.
Ensure investment plans are realistic, achievable, and appropriately resourced.
Programme & Project Shaping
Work with business and technical stakeholders to shape delivery programmes that deliver measurable outcomes.
Lead early-stage discovery to define scope, delivery approach, success measures, and governance.
Identify cross-portfolio dependencies, risks, constraints, and opportunities for synergy.
Mobilisation & Delivery Governance
Mobilise multi-disciplinary teams, including third-party partners.
Set delivery parameters covering scope, budget, resourcing, timelines, and risk management.
Establish and operate effective delivery and governance frameworks.
Financial Management
Set, manage, and assure programme and project budgets across CapEx and OpEx.
Oversee annual delivery budgets in excess of 20m, ensuring financial control and transparency.
Provide accurate reporting and forecast management.
Delivery Leadership
Be fully accountable for delivery to agreed time, cost, quality, and benefit targets.
Monitor portfolio performance, risks, issues, dependencies, and value realisation.
Lead regular portfolio reviews and take corrective action where required.
Ensure adherence to governance, assurance, and compliance standards.
People Leadership
Lead through matrix management and direct line management, overseeing teams of up to 100+ cross-functional resources.
Line manage Project Managers and develop capability through mentoring and structured development.
Support talent development, succession planning, and continuous improvement.
Stakeholder & Vendor Management
Build strong, trusted relationships with senior business and technology leaders, including executive-level stakeholders.
Lead portfolio governance forums and provide clear, actionable insight.
Manage supplier performance and commercial contracts (up to 5m per annum), ensuring value for money and SLA compliance.
Skills & Experience
Extensive experience in portfolio, programme, and project management within complex environments.
Proven track record of managing large-scale digital delivery portfolios.
Strong leadership and people management experience, including coaching and performance management.
Exceptional stakeholder management skills, including engagement at senior and executive levels.
Strong financial, commercial, and business acumen.
Excellent written and verbal communication skills.
Ability to operate effectively in matrix-managed organisations.
Qualifications
PMP, PRINCE2, or equivalent project/programme management certification.
Agile qualification or substantial Agile delivery experience.
Bachelor's degree (or equivalent experience).
Typically 10+ years' experience in portfolio and/or programme management roles.