Interim Head of Sales - Fintech B2B Bank SaaS in London

Interim Head of Sales

Treasury Solution for Core Banking

London based | 3 days per week in City | Outside IR35 | Day-rate contract

Mandate

We are seeking an Interim Head of Sales to lead commercial execution for a challenger treasury solution embedded within a core banking/banking technology platform. This is a hands-on role for a proven fintech sales leader who can build pipeline, run disciplined sales processes, and close complex treasury-led deals end-to-end.

The focus is on immediate and sustained revenue delivery across a twelve-month engagement. You will operate as a player–manager, personally owning deals while professionalising the sales funnel.

Key Objectives (First 3–6 Months)

• Build and qualify a strong sales pipeline targeting CFOs, Group Treasurers, and Treasury teams
• Drive cradle-to-grave sales execution from origination to close
• Establish a clear sales funnel, forecasting, and deal qualification discipline
• Win new logo clients across banks, fintechs, EMIs, and regulated financial institutions
• Position the platform as a mission-critical treasury capability within core banking
• Work closely with founders, product, and delivery to align treasury use cases and value proposition

Responsibilities

• Own new business sales for a treasury and liquidity management solution integrated with core banking platforms
• Lead complex, consultative solution sales cycles with CFOs, Group Treasurers, and senior finance stakeholders
• Personally originate, manage, and close deals
• Maintain strong pipeline management, forecasting accuracy, and CRM discipline
• Articulate value across liquidity management, cash visibility, risk, controls, and operational efficiency
• Engage credibly with regulated institutions and senior financial decision-makers
• Operate effectively in a lean, founder-led, challenger environment

Required Background

• Strong sales experience in treasury systems, core banking, fintech, bank technology, or financial services SaaS
• Proven track record of closing complex B2B technology deals with CFOs and treasury functions
• Deep experience with consultative and solution-led sales
• Solid understanding of treasury, liquidity, cash management, or balance sheet-related workflows
• Experience operating in challenger, scale-up, or PE-backed environments
• Comfortable selling mission-critical infrastructure into regulated organisations

Profile

• Immediately available interim sales leader
• Execution-driven, commercially sharp, and resilient
• Credible with CFOs, Group Treasurers, and board-level stakeholders
• Comfortable operating with limited brand and support infrastructure

Location & Contract

• London-based, with 3 days per week in the City
• Twelve-month day-rate contract, outside IR35
• Immediate start preferred