Backend Engineer @ Solvimon

Solvimon; Utrecht; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary & leave

Free lunch

Barista coffee

Generous equity package

Unlimited growth opportunities

Job summary

Solvimon is seeking Backend Engineers to design, build, and operate our next-generation billing platform in Utrecht. You will own features from API to production, and you will work on systems turning billions of usage events into revenue, with payments, tax engines, and ERP integrations.

We value ownership, fast delivery, and decisions made with limited context. The role requires you to be AI-native and comfortable in a startup-style environment; you’ll be in the office in Utrecht most of the

Qualifications

• Design and ship features end-to-end in production.
• Handle edge cases in revenue, pricing and invoicing systems.
• Thrive in a startup-like environment with high ownership.
• Experience with payments, tax engines, ERP/CRM integrations.

Responsibilities

• Design, build, ship and run features end to end in production.
• Integrate with payment providers, tax engines, e-invoicing networks, CRMs and ERPs.
• Ship to production regularly and operate what you ship.
• Collaborate with teammates in Utrecht and take ownership of blockers.
• Handle customer revenue edge cases and retries as part of backend work.

Skills

Ownership

Fast-paced

Autonomy

AI-native

Tools

Kotlin

Ktor

PostgreSQL

Kafka

ClickHouse

GCP

Job description

At Solvimon we're looking for Backend Engineers to work on our next-generation billing platform.

About the job

As engineer at Solvimon, you design, build, ship and run features end to end: from the first request all the way to running and supporting it in production. If you like building cool stuff in complex systems, you'll have great fun.

What you do

• Build systems that turn billions of usage events into revenue.

• Calculate invoices for any pricing model customers come up with: tiers, commitments, credits, overrides, mid-cycle changes, etc. Everything a modern AI company or fintech needs to make money.

• Design and build integrations with payment providers, tax engines, e-invoicing networks, CRMs and ERPs.

• Ship to production regularly, and run what you ship.

• Pick up whatever blocks a customer, also when it isn’t backend work.

What it takes

• We don't really mind how you like building things and what you build matters more than the tools you build it with. As long as you take ownership, move fast, and can make decisions without having the full picture, you'll fit right in.

• When dealing with customers' revenue, edge cases are important. Things like: retries, partial failures, users doing what you didn't expect.

• You're AI-native. We don't token-maxx but you can still use whatever you need to get the job done.

• You do well in a startup or other low-process, high-ownership environment.

• You like being around other people, and work from our Utrecht office at least 4 days a week, preferably 5. That's how we build our product and culture.

Tech stack

AI agents, Kotlin, Ktor, PostgreSQL, Kafka, ClickHouse, GCP. Experience helps; we don't require it. Tools are a means to an end.

How we hire

• Intro call, 30 minutes.

• Take-home case: a small problem from our domain.

• Case review with two of our engineers where you walk us through your decisions and we discuss them. In the case we look at correctness under load and failure and the business decisions you made.

What we offer

• Responsibility from day one, whatever your experience

• A top team with experienced founders

• Unlimited growth opportunities

• Full-time, permanent contract

• Competitive salary & leave, free lunch, barista coffee

• Generous equity package

About Solvimon

Solvimon handles metering, pricing, billing and invoicing for AI and cloud-native companies. Our customers send us their usage, and we make sure it turns into the right invoice, every time.

We were founded by people who led tech and product at Adyen. Today we’re a small team in Utrecht with big plans. We don’t have many rules, and everyone owns real parts of the product.