Start-up SaaS Financial Controller

About the company

F.INSTITUTE is a financial boutique firm specializing in ventures and high-growth companies, with a strong focus on Technology and Life Sciences. We are a modern (and a tad rebellious) company; to enable you to perform to your best we allow flexibility in time (e.g. a 4-day workweek) and place to fulfill your responsibilities. You will be working with an ambitious and fun team of various financial professionals.

As we are a growing company, we encourage you to develop your own ambitions as well so we can grow together!

Our mission is to empower companies to scale effectively and achieve success by implementing best-in-class structures, processes, and tools. Supported by our proprietary FP&A platform, we help ventures build clean, reliable financial operations- laying the foundation for strategic decision-making, fundraising, and sustainable growth.

About the role

We are seeking a Start-up SaaS Financial Controller to join our team. This role is perfect for someone who loves being close to the numbers, enjoys building dashboards, models and dataflows, and thrives in early-stage environments where financial operations need to be set up the right way from day one.

You will work as an embedded controller for a portfolio of B2B SaaS clients, helping them establish clean financial foundations- subscription metrics, revenue recognition, forecasting workflows, management reporting, and operational finance processes.

Key Responsibilities

• Set up and maintain financial operations for early-stage SaaS clients, including subscription dataflows, invoicing, and revenue recognition.

• Build and optimize SaaS reporting packs, focusing on ARR/MRR, churn, retention, CAC payback, and other KPI dashboards.

• Ensure clean, accurate, and timely financial data across systems (accounting, billing, FP&A).

• Manage monthly closes, variance analyses, and management reporting.

• Develop and maintain financial models tailored to SaaS business dynamics.

• Implement and improve financial tools across our SaaS tech stack- billing systems, FP&A tooling, dashboards, and integrations.

• Work with clients to define scalable processes as they move from founder-led ops to structured financial workflows.

• Support pricing model updates, cohort analysis, and unit economics calculations.

• Act as the day-to-day financial sparring partner for founder.
  
  

What you bring to the table

• Educational Background:

• Bachelor’s or Master’s degree in finance, business administration, economics, accounting, or a related field.

• Experience:

• 2–5 years of experience in financial controlling, FP&A, accounting, or operational finance.

• Experience with SaaS or subscription-based business models is a hard requirement.

• Comfortable working with scale-ups or start-ups (fast pace, evolving processes).

• Experience with financial systems, dashboards, or data analytics tools is preferred.

• Skills:

• Strong analytical and financial modeling skills.

• Understanding of SaaS metrics, revenue recognition, and operational finance.

• Ability to design clear dashboards and reporting structures.

• Excellent communication skills- able to simplify and explain financial concepts to founders.

• A proactive, hands-on attitude with strong problem-solving capabilities.

• Mindset: Entrepreneurial, structured, curious, adaptable, and eager to build things. You love clean data, scalable systems, and helping companies grow from messy early days to operational excellence.

Why join us?

At F.INSTITUTE, you’ll join a team that values innovation, autonomy, and collaboration. Working with early-stage SaaS companies will give you a front-row seat to Europe’s fastest-growing tech ecosystem. You’ll develop deep SaaS finance expertise and have the opportunity to grow into broader strategic roles as our SaaS vertical expands.

Perks and Benefits

• Competitive base salary, commensurate with experience.

• Participation in our Stock Appreciation Rights (SAR) plan.

• Hybrid working environment with flexible hours and potential for full remote work.

• Direct access to Europe’s top venture ecosystems and networks.

• Clear opportunities for growth- including progressing into a CFO role.