Interim Finance Lead - Bid Development & Financial Modelling

Robertson Bell; Remote; GBP 45,000 - 60,000; Part time

Job summary

A growing charity organization is seeking an Interim Finance Lead to support a crucial strategic bid on a part or full-time basis. This role involves leading cost and scenario modelling for bids, producing financial narratives, and working collaboratively with operational teams. Ideal candidates will have strong finance skills, especially within the charity sector. This is a four-month contract that offers the chance to make a significant impact during a crucial growth period for the organization.

Qualifications

• Experience supporting bids or tenders from a financial perspective, preferably in the charity sector.
• Strong costing and scenario-modelling skills.
• Ability to partner with operational leads effectively.

Responsibilities

• Lead on cost modelling and scenario modelling for bid decisions.
• Develop scalable pricing models with operational teams.
• Conduct competitor analysis to assess market positioning.
• Produce financial narratives for bids explaining assumptions.
• Deliver forecasting for medium-term financial impacts.
• Support VAT exemption processes related to bids.
• Provide strategic financial insights to stakeholders.

Skills

Costing skills

Scenario modelling

Pricing skills

Effective communication

Analytical mindset

Job description

Interim Finance Lead - Bid Development & Financial Modelling

A growing and mission-driven Charity is seeking an Interim Finance Lead to support a major strategic bid, on either part or full time basis. The organisation is preparing to tender for a place on a government framework that, if successful, could significantly scale up their operations.

To put forward the strongest possible bid, they require a finance professional on a four month contract who can provide robust financial modelling, strategic insight, and clear, evidence-based pricing in collaboration with the operational teams.

Key Responsibilities

• Lead on cost modelling and scenario modelling to inform bid decisions and pricing options.
• Work closely with operational leads to build realistic, scalable pricing models that reflect service delivery requirements.
• Conduct competitor analysis and review external benchmarks to assess the organisation’s market positioning.
• Produce clear financial narratives to accompany the bid, explaining assumptions, risks, and sensitivities.
• Deliver forecasting to help leadership understand the medium-term financial impact of different bid outcomes.
• Support the organisation’s move towards partial VAT exemption, helping establish compliant processes and advising on implications for the bid.
• Provide strategic financial insight to senior stakeholders, enabling them to make informed decisions under tight deadlines.

The ideal candidate will have:

• Experience supporting bids or tenders from a financial perspective (charity sector experience highly desirable).
• Strong costing, scenario‑modelling, and pricing skills.
• The ability to partner effectively with operational leads.
• A clear and confident communication style.
• A proactive, analytical mindset with the ability to work independently and at pace.

Candidates who bring strong charity finance experience and advanced modelling capability — even without direct bid experience — are strongly encouraged to apply

If you’re interested in helping a charity navigate an exciting period of growth and change, please apply as soon as possible.