Senior FP&A Manager

Story Terrace Inc.; Remote; GBP 68,000 - 80,000; Full time

Job summary

A leading technology firm in Greater London is seeking a Senior FP&A Manager to build and scale their financial planning function. In this critical role, you will establish budgeting and forecasting processes, manage complex financial structures, and provide insights for strategic decision-making. The ideal candidate has over 5 years of experience in FP&A and possesses strong financial modeling skills. This position reports directly to the CFO and is key to enhancing organizational efficiency during a growth phase.

Qualifications

• 5+ years in FP&A, combined with corporate finance or consulting.
• Proven experience running forecasting and budgeting cycles in a scaling or fast-paced environment.
• Strong financial modeling skills in Excel/Google Sheets.

Responsibilities

• Build and own end-to-end budgeting, forecasting, and scenario planning processes.
• Create dynamic financial models incorporating platform dependency risks.
• Develop and track SaaS/marketplace KPIs: ARR growth, net revenue retention.

Skills

Financial modeling

Analytical skills

Excellent communication

Commercial mindset

Education

ACA/ACCA/CIMA qualified or equivalent

Tools

Excel

Google Sheets

BI/reporting platforms

Job description

Senior FP&A Manager

Location: UK/ EU (remote)

Budget: £80,000/ € 80,000

About Threecolts

Threecolts is a global software powerhouse for marketplace sellers and e-commerce brands. We help Amazon, Walmart, and multichannel operators scale through our suite of 24+ best-in‑class SaaS tools — all available through our bundled solution, Seller 365. Our mission is to empower e‑commerce operators to thrive in an increasingly complex marketplace ecosystem.

About the Role

We're hiring our first dedicated FP&A Manager to establish and scale our financial planning function during a transformative growth phase. This hands‑on role requires both technical accounting expertise and strategic FP&A capabilities. You'll build FP&A processes, manage complex financial structures, and provide crucial insights as we execute our enterprise‑focused strategy. This position reports directly to the CFO and is instrumental in board communications, stakeholder management, and strategic decision‑making.

Key Responsibilities

Financial Planning & Analysis

• Build and own end‑to‑end budgeting, forecasting, and scenario planning processes from the ground up.
• Create dynamic financial models incorporating platform dependency risks, customer concentration, and market volatility.
• Develop and track SaaS/marketplace KPIs: ARR growth, net revenue retention, CAC payback, unit economics, cohort analysis.
• Lead monthly variance analysis and quarterly board reporting, providing clear narratives around performance drivers.

• Bridge management reporting to GAAP financials, explaining key adjustments to stakeholders

Strategic Finance & Stakeholder Management

• Model working capital impacts of customer segment transitions and evolving payment terms
• Maintain debt service coverage models and covenant compliance tracking for complex debt structures
• Support M&A integration and earnout calculations for recent acquisitions
• Partner with Sales, Product, and Operations on pricing strategy, investment cases, and resource allocation
• Prepare investor materials and support fundraising/refinancing initiatives
• Support audit processes and strengthen internal controls framework

Systems & Process Development

• Lead an implementation of a scalable FP&A solution.
• Lead budget and forecasting processes and a financial controls framework
• Drive process improvements to reduce reporting cycle time and improve accuracy

What You Bring

• 5+ years in FP&A, combined with corporate finance or consulting.
• Proven experience running forecasting and budgeting cycles in a scaling or fast‑paced environment.
• Strong financial modeling skills in Excel/Google Sheets; comfortable building models from scratch.
• Analytical and detail‑driven, with the ability to turn data into insights that influence stakeholders.
• Excellent communication skills — you can present numbers as a story and influence senior leaders.
• Commercial mindset with a balance of strategic thinking and hands‑on execution.
• Knowledge of US GAAP (revenue recognition, deferred revenue, ARR) and familiarity with SaaS metrics
• Experience operating and implementing an FP&A system.

Bonus Points For

• ACA/ACCA/CIMA qualified or equivalent
• Experience in e‑commerce marketplace businesses or other tech industry.
• Tools‑savvy: BI/reporting platforms (Looker, Tableau, PowerBI), CRM, and finance systems.
• Exposure to M&A analysis, due diligence, or post‑acquisition integration.
• Background in both large corporate and startup environments

Why This Role Matters

This isn’t just a reporting role — You'll be employee #1 in our FP&A function, with the opportunity to build something foundational during a pivotal moment in our company's evolution. This isn't just about reporting numbers — it's about establishing the financial intelligence layer that enables smarter, faster decision‑making across the organization.