---
title: 'Open Application at Causa Prima'
canonical: 'https://feeny.ai/job/open-application-causa-prima-madrid-5fx837v9ker4'
type: 'job'
last_seen: '2026-09-05'
---

# Open Application at Causa Prima

- **Company:** Causa Prima
- **Location:** Madrid, Spain
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-06-26
- **Last confirmed live:** 2026-09-05
- **Apply:** https://jobs.ashbyhq.com/causaprima/839e4ca6-1474-4ca7-bed2-f3d823198bb2/application

> This is an open application for candidates whose skills do not fit existing roles but align with the company's mission to build autonomous finance operations using agentic AI. The company seeks individuals who can move fast, go deep, and own unglamorous tasks within a small, high-ownership team.

## Job description

## About Causa Prima

We're building autonomous finance operations for the CFO office. Think accounts payable, accounts receivable, cash management and treasury, run by agentic AI rather than spreadsheets and manual review. It's early, the problems are hard, and the people who join now shape what the company becomes.

We work between Madrid (our primary hub) and Munich, in-person.

## Why you're here

You've looked at our open roles and nothing fits, but something about what we're doing stuck with you. Good. Some of our best hires didn't come through a job we'd posted. They reached out, showed us how they think, and we built a role around them.

This is that door. Tell us what you're exceptional at and where you'd want to make a dent, and we'll keep you close for when the right thing opens up (or create it).

Who tends to thrive here

- You move fast and ship real things, not decks about things.
- You go deep. You'd rather understand a problem properly than skim five.
- You have strong instincts in your domain and the judgment to know when to trust them.
- You're comfortable with ambiguity and short on ego about owning the unglamorous parts.
- You actually care about finance, AI, or both.

We hire across engineering, product, design, operations, and go-to-market. If you're great at something we haven't named, surprise us.

## How we work

Small team, high ownership, very little process for its own sake. We value original thinking over polish, output over activity, and honest direct communication over diplomacy theatre. All three founders meet every person who joins.

## What we offer

- Meaningful equity. Early-employee ownership is real here, not a rounding error.
- Compensation benchmarked to market, with the flexibility that comes from joining early.
- Work that compounds: what you build now defines the product and the company.
- A team that's serious about the mission and not precious about much else.

How this works

Drop your CV and a few lines on what you're great at and what you'd want to own. We read every one. If there's a fit now, we'll move quickly. If it's a "not yet," we'll keep you on file and reach out when something lands that matches you. No black hole.

## About Causa Prima

## Company Overview
- **One-liner**: Causa Prima operates an agent-to-agent network that automates invoicing, dispute resolution, and payment-term negotiations between buyers and suppliers for finance teams.
- **Entity Type**: Private (Pre-Seed)
- **Headquarters**: Madrid, Spain & Munich, Germany
- **Founded**: 2025 (implied by recent funding and hiring activity in early 2026)
- **Founders**: Maex Ament (CEO), Henrik Gebbing (COO), Philip Stanislaus (CTO)

## Core Business
- **Primary industry**: B2B Fintech / Accounts Payable & Receivable Automation
- **Target customers**: SMB and Enterprise finance teams (buyers and suppliers)
- **Mission or purpose**: To eliminate fixed payment terms (Net-30, Net-60) by enabling AI agents on both sides of a transaction to settle instantly, so money moves on the right terms at the right time automatically.

## Products & Services
- **Causa Prima Network**: A two-sided agent-to-agent network where AI agents handle invoicing, dispute resolution, and dynamic discounting. Buyers and suppliers connect on one platform, removing manual handoffs between AP and AR systems.
- **Scribo (Open Source)**: A free, AI-native e-invoicing tool compliant with EN 16931 (ZUGFeRD/XRechnung for Germany, US plain PDF). Available as an MCP server, Claude/Codex skill, CLI, HTTP API, and web app. Designed to help developers and finance teams generate compliant invoices programmatically.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (pre-seed stage)
- **Key Metric**: $10M in total funding (pre-seed round, announced June 2026)
- **Notable Investors/Partners**: Creandum (led the round), Kfund, HelloWorld, Angel Invest, plus angel investors from Qonto, Pennylane, SAP, ING, SoFi, LIDL, and DeepMind.
- **Growth Signals**: Already trusted by 3,000+ accounts; headcount grew 28.6% monthly (LinkedIn data as of mid-2026); hiring for engineering and product roles in Madrid and Munich; open-source Scribo project gaining traction (12 stars on GitHub).

## Competitive Advantages
- **Two-sided network**: Unlike competitors that automate only one side (AP or AR), Causa Prima connects both buyers and suppliers on a shared network, eliminating the gap between systems.
- **Founder credibility**: Maex Ament invented dynamic discounting and co-founded Taulia (acquired by SAP, processing $50B/quarter). Henrik Gebbing built Finoa to $10B in assets under custody. Philip Stanislaus led 600+ enterprise security audits at Oak Security.
- **Agent-native design**: The platform is built from the ground up for AI agents to negotiate in real time, not just to speed up human workflows.

## Strategic Focus
- **Current priorities**: Grow the engineering and product teams in Madrid and Munich; scale the network beyond 3,000 accounts; push toward eliminating fixed payment terms entirely by making agent-to-agent settlement the default.
- **Direction**: Move from automating existing finance processes to replacing the underlying paradigm of B2B payments (Net-30/60/90) with instant, AI-driven settlement.

## Why Work Here
- **Culture**: Described by founders as a “once-in-a-lifetime opportunity” for people who want to build high-impact infrastructure from scratch. Emphasis on entrepreneurial drive and solving a problem that software has never fully addressed.
- **Remote/Hybrid/Office**: Presence in Madrid and Munich; roles appear to be in-office or hybrid (engineering roles listed in these cities).
- **Notable perks/engineering culture**: Early-stage startup with a small team (6 employees as of mid-2026) — high ownership and direct impact. Tech stack includes TypeScript, GraphQL, PostgreSQL, Redis, Terraform, Kubernetes, and Python. Open-source contributions (Scribo) are a core part of the product strategy. Backed by top-tier VC (Creandum) with strong founder track record.

## Sources
1. [causaprima.ai](https://causaprima.ai/)
2. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/causaprima)
3. [linkedin.com](https://www.linkedin.com/company/causa-prima)
4. [github.com](https://github.com/causa-prima-ai)
5. [techfundingnews.com](https://techfundingnews.com/causa-prima-10m-pre-seed-creandum-b2b-payments-ai-agents-network/)

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