Updated in September 2026
Target start date: Flexible, between Dec 14, 2026 and Jan 4, 2027
Compensation: 1,500 EUR gross monthly
Upflow is the Financial Relationship Management (FRM) platform that helps B2B finance teams collect smarter and get paid by their customers faster, with AI agents working alongside the team.
Today, the order-to-cash process is mission critical for businesses, yet it remains fragmented across tools, teams, and workflows. Upflow brings this entire process into one system — four products covering the cycle from invoice to cash (Insights, Collections, Payments, and Cash Application), with AI agents that work alongside the team and a shared intelligence layer underneath.
We serve 500+ companies across 30+ countries, including Vercel, Lattice, and Productboard, and are backed by leading investors including Y Combinator, Hedosophia, Hexa, and Lorimer. With teams across the US and Europe, we're building a category-defining company at the intersection of finance, payments, and AI.
To learn more about what we do, visit upflow.io. For a behind-the-scenes look at how we work as a team, head to the Inside Upflow section of our blog at upflow.io/blog/inside-upflow.
Joining Upflow as a Founder Associate (internship), you are a key player in turning our vision into reality and ensuring smooth alignment between our leadership, investors, and internal teams.
Reporting to our Director of Operations, you will:
Here's what you’ll find at Upflow:
It’s a discussion with your future manager. We’ll get deeper into your expertise and know-how. We’ll also give you a clearer view of what your day-to-day in that role is like. It’s a good opportunity to see if you foresee yourself working at Upflow.
Your time to shine! You’ll be given a home assignment. Yes, it is designed to assess your skills. But it’s also designed to give you a better taste of what being part of Upflow is like. Again, hiring is a two-way street! Ultimately: we believe assignments are a great way to control our biases. We care about what you do — not your schooling, your social background, or how you identify.
This home assignment is expected to take you no more than 2-3 hours of work.
Louis will debrief your case with you. Hiring managers at Upflow are looking for team players: taking and giving feedback is key to thriving with us!
You'll be invited to meet (A) our current Founder Associate, so you can discuss what being in this role is and feels like, and (B) our Finance Director.
Meet with Alex, our co-founder & CEO. He will tell you everything about Upflow’s vision and values. It’s a privileged moment to ask questions, too.
At Upflow, we are committed to building a diverse and inclusive workplace. We encourage all individuals to apply, even if you don’t meet every qualification. Research shows that some candidates may hesitate to apply unless they meet every requirement. However, we believe that a variety of experiences and perspectives can bring value beyond the listed qualifications. If you’re excited about what we do and feel you could contribute, we want to hear from you.

Upflow is a Financial Relationship Management solution that helps our customers transition from chasing invoices to engaging customers.
Get paid faster, enjoy better customer relationships AND realize your full growth potential.
Our features include:
Real-time metrics on your A/R collection
Automated and personalized workflows
Payment portals adapted to each customer
We integrate directly with different accounting solutions like Quickbooks, Netsuite, or Xero and can also develop specific APIs. Our partnerships with Stripe and Go Cardless streamline payments for your customers.
We have hundreds of users around the world, including Front, Lattice, and Productboard and are backed by key investors (YCombinator, eFounders) and leading fintech business angels.