Product Engineer Intern

About Finto

Finto is on a mission to reinvent how enterprises run their finance operations. Starting with AI-powered automation for accounts payable, we eliminate manual invoice handling, supplier chasing, 3-Way-Matching and ERP data entry. Backed by Y Combinator, we’re building the future of enterprise accounting.

Our mission is to free the world’s finance teams from repetitive, low-value tasks so they can focus on impactful work. That starts with building a place where everyone can do their best work. Whether you’re building on our platform, partnering with our customers, or shaping our story: We just make things finance teams want.

About the role

We are looking for a Product Engineer Intern to join our team, focused on building and optimizing the next generation of AI-powered enterprise finance tools. As part of the engineering team, you will play a central role in shaping dedicated features and helping some of the world’s largest companies eliminate their manual accounting work.

You’ll work side-by-side with our founders and engineers to turn ideas into high-performing, elegant features that slot seamlessly into our customers’ existing processes. Your work will directly define how finance teams experience AI automation - in real life, at scale.

We’re headquartered in Munich, with roots in San Francisco through Y Combinator.

What you’ll do

• Take ownership of a defined feature area or technical project, working closely with founders and engineers from discovery to delivery.

• Help improve model performance and workflow quality by testing, evaluating results, and iterating on prompts/data/logic.

• Contribute to frontend and backend development (React, Node) to deliver smooth, reliable user experiences.

• Assist with debugging, monitoring, and improving reliability of AI-powered workflows in real-world customer scenarios.

What we’re looking for

• Currently pursuing (or recently completed) a degree in Computer Science, Engineering, or a related field, with strong academic performance.

• Solid JavaScript/TypeScript skills with experience in React and Next.js.

• Backend expertise in Node.js or comparable languages like Python or Go, with a focus on scalable APIs and AI-driven services.

• Exposure to AI models and APIs (e.g., LLMs), and excitement to experiment, evaluate, and integrate them into real products.

• A builder’s mindset - enjoys shipping and learning quickly

• Structured problem-solver with clear communication skills, comfortable working closely with founders in a fast-moving environment.

Work at Finto

• An environment where we enable you to have an impact and where we focus on outcomes, not time-tracking

• Career-defining growth: Big ambitions mean rapid progression, expanding responsibilities, and access to our San Francisco & YC network.

• Shape your future job: You got a chance to build your own job entry

• 25 vacation days + 2 fixed “company recharge days.”

• A vibrant in-office culture (5 days/week) in a modern office

Interview Process

1. Intro – 20 mins with our CEO

2. Technical Interview – 20 mins with our CTO

3. Challenge – 60 mins coding & design challenge

4. Offer