get hired at
Causa Prima
An agent-to-agent network for B2B finance
- 25
- BPRQIFL+3
- Madrid
- AI
Open roles at Causa Prima
6 positions we're tracking, re-checked daily
- apply ↗
Senior Backend / Platform Engineer (Madrid)
madrid, spainSeniorfirst seen today - apply ↗
Platform Security Engineer (Madrid)
madrid, spainMid-levelfirst seen today - apply ↗
Senior SAP / ABAP Engineer (Madrid)
madrid, spainSeniorfirst seen today - apply ↗
Founders' Associate (Madrid)
madrid, spainEntry-levelfirst seen today - apply ↗
Executive Assistant (Madrid)
madrid, spainMid-levelfirst seen today - apply ↗
Open Application (Madrid)
madrid, spainMid-levelfirst seen today
Know when Causa Prima is hiring before anyone else
A role stays uncontested for about four days. Here's the window, and where we put you in it.
From $5.99/week, cancel any time.
- live
- +2h+2hrole spotted & verified1
- +4h+4hyou get the alert1
- day 3day 3you've applied~8
- day 7+day 7+hits the job boards250+
What Causa Prima is building
Causa Prima is building an agent-to-agent network for enterprise finance. The core idea: the expensive mess in B2B finance doesn't happen inside one company, it happens at the handoff between one company's accounts payable and another's accounts receivable. So every company on the network runs its own agent that represents its side of invoices, payments and disputes, and the two agents settle things with each other directly instead of through email chains and phone calls. The agents match invoices, clear disputes, route approvals and negotiate payment terms. They follow rules the company sets, show their reasoning, and flag uncertainty instead of guessing. If the counterparty isn't on the network yet, the agent reaches them by email. That's the wedge for network growth. It sits on top of existing ERPs (the site lists 150+ integrations including SAP, NetSuite and Xero) rather than replacing them, and the company claims 86% touchless processing. The business model is the tell. Causa Prima takes a cut when its agents successfully negotiate early payment, which is dynamic discounting run by agents. That's no accident: CEO Maex Ament invented dynamic discounting at Taulia, which SAP acquired in 2022. This is the same founder re-running his original thesis with agents on both sides of the table, plus a cash-forecasting and 'steering' layer (cash floors, when to take a discount vs. hold cash) for the CFO.
Why this matters
B2B payments are roughly a $98 trillion-a-year market (Fortune Business Insights, cited by Fortune), and the friction is well documented: a 2025 Ardent Partners report found nearly half of AP executives name slow invoice approvals as their biggest challenge, with processing averaging more than eight days. Tech.eu, citing Atradius, notes nearly half of US credit-based B2B sales are overdue. Every AP-automation company so far has optimized one side of the transaction. Causa Prima is betting that once both sides run agents, the dispute itself becomes a machine-to-machine negotiation, and whoever owns that network owns the early-payment spread. With >3,000 active accounts reported and a founder whose last company already sits in most supplier payment flows, the network cold-start is less cold than usual.
Investors: Base10 Partners (Rexhi Dollaku), QED Investors, FJ Labs, Existing: Creandum, Kfund, Borusan Ventures
Hiring outlook
The Ashby board is live with six roles, four of them engineering or engineering-adjacent (Senior Backend/Platform, Platform Security, Senior SAP/ABAP, plus an open application), all in Madrid. The raise explicitly funds a New York office, and the pre-seed announcement said engineering and product would grow in both Madrid and Munich.
Working at Causa Prima
Causa Prima: An agent-to-agent network for B2B finance. The team is <50 people today. For a AI company this size, the reality is broad remit, direct access to founders, and equity that still means something if the company works out.
Most Causa Prima jobs are based in Madrid, Spain.
How to actually get hired at Causa Prima
Why applying the normal way doesn't work
With only <50 employees, Causa Prima doesn't have dedicated recruiters. Founders review applications between running the company. The challenge isn't competition — it's visibility. Direct outreach wins.
Who to contact at Causa Prima
- Who decides
- a founder or department head
- Best channel
- LinkedIn or direct email
Founding team
Serial fintech founder who started as a software engineer at SAP. Co-founded AP-automation pioneer Ebydos (sold to ReadSoft), then Taulia in 2009, where he invented dynamic discounting; SAP acquired Taulia in 2022. Co-founded Centrifuge in 2017 to tokenize real-world assets before starting Causa Prima in early 2026.
Started in a dual-degree program at Siemens, then spent three years at McKinsey consulting financial institutions and high-tech companies. Left in 2018 to co-found Finoa, the Berlin digital-asset custodian and on-chain banking platform, and later moved into a board role there. MBA from IE Business School.
Led engineering under Maex at Centrifuge, and led more than 600 enterprise security audits at Oak Security. Now CTO, owning the agent platform and its integrations into enterprise ERPs.
What to show them
Build a small two-agent invoice-dispute simulator: a buyer agent and a supplier agent, each with its own company policy (tolerance thresholds, cash floor, max discount), negotiating over a mismatched invoice with a full audit log of every proposal and the reasoning behind it. Show how you guarantee idempotency and that neither agent can commit its company beyond policy.
A cold email that works at Causa Prima
What Causa Prima screens for
A $20M seed closing three months after a $10M pre-seed is a speed signal: Base10 (whose GP framed it as 'building for the handoff between companies') and QED, one of the most fintech-specialist funds out there, are buying founder-market fit rather than traction. Repeat founders with a prior SAP exit attract that kind of money. The hiring window is now: a ~25-person team with a fresh $30M, a live board weighted to platform/security/SAP engineering, and a New York office that hasn't been staffed yet. Being one of the first US hires at a European fintech that's going transatlantic is a rare seat.
Tailor your CV to the specific Causa Prima role rather than sending a general one. Applications that mirror the language of the job description clear automated filters at a materially higher rate.
Don't make these mistakes
Don't explain dynamic discounting or early-payment economics to Maex. He invented the category at Taulia and sold it to SAP, so a 'have you thought about supply-chain finance?' pitch is a non-starter. Don't open with generic 'agents will transform finance' enthusiasm either. Henrik and Maex have both been through the crypto/tokenization cycle (Finoa, Centrifuge), so they'll recognize hype instantly. And for the SAP/ABAP role, don't pretend ERP integration is glamorous or easy. They know it's the hard, unglamorous moat.
Mistakes that kill Causa Prima applications
A recycled CV gets rejected fast at Causa Prima (<50 people). They notice.
Lead with their problem, not your ambition. Causa Prima is focused on B2B payments are roughly a $98 trillion-a-year market (Fortune Business Insights, cited by Fortune), and the friction is well documented: a 2025 Ardent Partners report found nearly half of AP executives name slow invoice approvals as their biggest challenge, with processing averaging more than eight days — show you understand that.
Don't apply and wait. The median AI application gets no response ever. One follow-up at day five roughly doubles reply rates.
Applying to Causa Prima? Get the contact, not the form.
The Causa Prima interview process
We don't yet have verified candidate reports for Causa Prima. What follows is the typical process for a <50-person AI company, so treat it as a model, not confirmed detail.
Interview stages
- 1
Intro Call
Video call · 30 min
What it testsCulture fit and role expectationsUsually run byFounder or hiring manager - 2
Technical Deep Dive
Video call or in-person · 60 min
What it testsPast projects and problem-solving approachUsually run byTechnical founder or lead - 3
Final Round
In-person or video · 45 min
What it testsTeam fit and offer discussionUsually run byFounding team
Causa Prima take-home assignment
Causa Prima includes a take-home exercise in their interview process. For AI roles, this typically involves a practical problem that takes 2-4 hours. Focus on clean, working code over premature optimization. They're evaluating how you think and communicate, not just the solution.
Causa Prima interview timeline
Causa Prima runs about 7 days from first contact to offer. The median for AI companies at <50 people is 10 days, so Causa Prima is faster than most.
Interviewed at Causa Prima?
Tell us how it went: stages, questions, timeline. Takes 90 seconds and it's how this page stays accurate for the next person.
Causa Prima jobs, frequently asked questions
How many jobs does Causa Prima have open?
We're tracking 6 active openings at Causa Prima (verified October 14, 2026).
Does Causa Prima hire remotely?
Causa Prima doesn't have remote openings at the moment. All roles are in Madrid, Spain.
What roles is Causa Prima hiring for?
Causa Prima is hiring across Engineering, Other. The most recent opening is Senior Backend / Platform Engineer (Madrid).
How do I apply for a job at Causa Prima?
Click through to apply, or see our detailed guide on landing a job at Causa Prima.
Does Causa Prima respond to cold emails?
We haven't verified response rates at Causa Prima yet.
Who is the hiring manager at Causa Prima?
At this size, hiring is usually run by a founder or department head.
How competitive is it to get hired at Causa Prima?
<50-person AI companies see ~50-100 applicants per role in two weeks. The 72-hour window is your advantage.
How many rounds is the Causa Prima interview?
3 stages: Intro Call, Technical Deep Dive, Final Round.
Is the Causa Prima interview hard?
The interview emphasizes technical depth and system design over abstract problems. Hardest stage: Technical Interview.
Does Causa Prima give a take-home task?
Yes, Causa Prima includes a take-home assignment.
How long does Causa Prima take to get back to you?
Around 7 days across the full process.
What should I prepare for the Causa Prima interview?
Prepare for technical depth and system design. A <50-person startup wants proof you can ship, not that you can whiteboard.
Where is Causa Prima based?
Causa Prima is headquartered in Madrid, Spain.
Get Causa Prima roles before they're posted
A role stays uncontested for about four days. Here's the window, and where we put you in it.
From $5.99/week, cancel any time.
- live
- +2h+2hrole spotted & verified1
- +4h+4hyou get the alert1
- day 3day 3you've applied~8
- day 7+day 7+hits the job boards250+
Related
More AI companies hiring
Other startups we track in the same space.