Head of Finance

Fonio; Wien; On-site; EUR 117,000 - 143,000; Full time

Benefits offered by this job

Equity package

On-site in Vienna

Relocation assistance

Ownership from day one

Job summary

fonio in Vienna seeks a Head of Finance to own the entire finance operation across Europe and the US, guiding the transition to fully in-house accounting by 2027. You will lead month-end closings, tax, treasury and intercompany activities while building a lean ERP and finance workflows.

You will build and lead a growing finance team, work directly with founders and leadership, and ensure precise reporting down to the invoice line item across entities. Fluent German and English are essential.

Qualifications

• Experience building finance in a fast-growing, international company across jurisdictions and accounting rules (ideally VC-backed B2B SaaS/Tech).
• Led closings and accounting prep yourself, not just reviews.
• Experience with controlling, tax, cash flow and treasury.
• Workflow automation and AI tools (Claude Code, n8n) are part of your toolkit.
• Attention to detail and flawless precision.

Responsibilities

• Own accounting for all entities and transition to in-house by 2027.
• Run month-end, quarterly and annual closings with revenue reporting to invoice level and cost/profit center reporting.
• Own VAT, sales tax, employment tax, and international tax; manage transfer pricing between entities.
• Oversee cash flow, forecasting, reserves, intercompany transfers and FX operations.
• Roll out a lean ERP and convert finance processes into automated workflows and AI agents.
• Build and lead the finance team, starting with the first hire after joining.
• Collaborate with founders and the leadership team.

Skills

Finance leadership

Controlling

Taxation

Cash flow

Treasury

Automation

ERP rollout

Team building

Tools

Claude Code

n8n

Job description

About fonio

We grew from $1M to $10M ARR in under 12 months and now serve 10,000+ customers.

Fonio is Europe’s market leader for AI phone agents for SMBs. Now we’re expanding globally and into new products.
We move fast, take ownership, give direct feedback, and avoid politics and unnecessary meetings.
Join one of Europe’s fastest-growing companies.

Your Role

As Head of Finance, you own the entire finance operation behind one of Europe's fastest-growing companies, across our entities in Europe and the US.

• Own accounting for all entities: pre-accounting in-house, full ownership of our accounting stack, and the transition to fully in-house accounting in 2027.
• Run controlling: month-end, quarterly and annual closings, revenue reporting down to the invoice line item, cost and profit center reporting.
• Own tax: VAT and sales tax, employment tax and contributions, international tax, and transfer pricing between entities.
• Own cash flow and treasury: planning, forecasting, cash reserves, return optimization, intercompany transfers and FX.
• Roll out a lean ERP and turn everything manual in finance into workflows and AI agents.
• Build and lead the finance team, starting with your first hire shortly after you join.
• Work directly with both founders and the extended leadership team.

What We Offer

• Up to €130,000 + equity package.
• On-site in Vienna, relocation package if needed.
• Real ownership from day one
• Everything you need to be successful. If you need it, you get it.

What You Bring

• You were part of building a finance in a fast-growing company, internationally, across different jurisdictions and accounting regulations. (ideally: VC-backed B2B SaaS/Tech)
• You have run closings and accounting prep yourself, not just reviewed them.
• You are experienced across controlling, tax, cash flow and treasury.
• Workflows, agents and automations are your default, not the exception. Claude Code, n8n and similar tools are part of your toolkit.
• Obsession with detail: small errors bother you before they bother anyone else.
• Perfect German, very good English.

Hiring process

1. 15 min Intro Call
2. 15 min Intro Call with our Chief of Staff
3. 45 min Skill Interview & Case Study Discussion
4. On-Site Meeting in Vienna
5. 20 min Culture Call with the founders