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Product Engineer, Treasury & Working Capital

On-site in Madrid·Full-time·Added 2 days ago (last checked 27 Oct)

Causa Prima

9 open roles

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Our summary

Work mode: On-site, Madrid
Contract: Full-time
English: Required
Other languages: German

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Skills

Nice to have

Requirements

What we're looking for

Finance knowledge earned in practice. You've worked on cash, working capital, payments, or reconciliation in accounting, audit, advisory, treasury, or software. Show us the workflows and exceptions you've handled - credentials alone aren't the bar.
Working-capital fluency. You understand how receivables, payables, financing, and payment timing affect cash. You can explain who funds the gap when a buyer extends terms. Bring depth in one area and connect it to the others.
Evidence that you learn by building. You've learned unfamiliar tools to solve real problems and already use AI tools to automate work or build prototypes. Previous product or engineering titles aren't required.
A bridge from finance to software. You can break a financial process into steps, data, rules, and exceptions a developer can build against. You learn technical concepts quickly and test the result with users.
Customer-facing analytical judgment. You've investigated client or finance-user problems beyond the first explanation. You can explain financial tradeoffs clearly and change your recommendation when the evidence changes.
Ownership through delivery. You've managed a project through to an implemented change, kept people aligned, and resolved the awkward details. You can point to what improved after your recommendation became practice.
Fluent English. Spanish or German is a plus.

Nice to have

This is a wishlist, not a checklist. If the role excites you but you don't tick every box, we would encourage you to apply anyway.

Nice to have

Financing implementation experience. You've brought supply chain finance, dynamic discounting, factoring, or invoice financing into actual customer use.
Banking and accounting integrations. You've worked with bank feeds, payment providers, or ERP reconciliation and dealt with their operational exceptions.
(Agentic) product experience. You've helped turn a customer problem into a digital product. Experience with agents that act within defined policies and human approvals is a further plus.

The role

You'll build products where finance teams set direction and AI agents act on financial data: negotiating early-payment terms, executing approved payments, and reconciling the results. You'll take customer problems through working prototypes to production delivery with engineering.

At Causa Prima, we build AI agents that work across company boundaries. Extending a buyer's payment terms changes a supplier's cash position. Paying an invoice early can create value for both. You'll connect those decisions so improving one company's working capital doesn't just move the problem to another.

You may have learned this domain in accounting, audit, advisory, or a finance team. Here, you'll turn that knowledge into digital products: speaking with customers, building prototypes, and working with developers to make them reliable.

What you'll do

Find the decision behind the dashboard. Work with finance teams to understand how they decide which obligations to meet, how much cash to retain, and when to use financing.
Make working-capital products usable. Design how agents compare financing options and negotiate early-payment terms on real invoices. Define eligibility, costs, and what happens when an invoice is disputed or paid late.
Connect forecasts to action. Design how agents detect liquidity gaps, evaluate financing options, and prepare payment plans for approval.
Follow money through the whole workflow. Shape how agents execute approved payments, track settlement, and reconcile transactions to invoices and accounting records. Investigate the partial payment, missing reference, or stale bank feed that makes a tidy workflow fall apart.
Prototype, test, and ship. Build prototypes with AI coding tools, test with users, and work with engineering on production delivery.
Make the limits explicit. Define what agents can do within agreed policies, which actions require human approval, and how users can trace what happened. Measure financing uptake, reconciliation exceptions, and manual work removed.

About Causa Prima

Causa Prima is a technology company focused on developing AI-driven agent platforms and enterprise software solutions. Based in Madrid, Spain, the company operates at the intersection of artificial intelligence, platform engineering, and product development, serving clients that require advanced automation and intelligent systems. With a team of engineers, product specialists, and marketers, Causa Prima is building scalable infrastructure and AI agents for real-world business applications.

Causa Prima has its main office in Madrid, Spain, and is actively hiring for senior engineering and product roles, making it an attractive destination for international tech professionals looking to work in Spain's growing AI ecosystem. The company's work culture emphasizes innovation, technical excellence, and cross-functional collaboration, offering opportunities for relocation and career growth in a dynamic startup environment.

Headquarters: Madrid, Spain
In Spain: Madrid

Good to know if you are moving

Based in Madrid, offering a central location in Spain's tech hub with a vibrant startup scene.
Hiring for senior engineering roles, indicating a focus on building a strong technical team.
The company works on AI and LLM technologies, which are high-demand fields globally.
As a smaller company, employees may have more impact and ownership over projects.

All open roles at Causa Prima