Product-Minded Senior Backend Engineer (EU Remote)

DutchTechX; Polska; Hybrid; PLN 393,000 - 568,000; Full time

Benefits offered by this job

Stock options

Work & Swim program

Flexible remote/hybrid across Europe

Job summary

Finom, a European fintech startup, is seeking a Senior Backend Engineer who thinks like a product builder. You will join a domain team with Backend, Frontend, Mobile, ML/AI, and QA engineers to own and evolve a shared product area across Europe.

You will ship robust, scalable infrastructure in .NET/C#, participate in architecture discussions, implement secure, testable solutions, and mentor teammates while delivering real value to hundreds of thousands of businesses.

Qualifications

• 5+ years of professional backend development with a product engineering mindset.
• Excellent knowledge of .NET platform and C#.
• Hands-on experience architecting and evolving distributed systems in production.
• Proven ability to collaborate with product managers, designers, and engineers from other disciplines.
• Strong business acumen and English communication across technical and non-technical audiences.
• A builder's mentality: you care deeply about shipping great products, not just writing great code.

Skills

Backend development

.NET/C#

Distributed systems

Cross-functional collaboration

English communication

Product-minded engineering

Testing & security

Tools

PostgreSQL

Redis

RabbitMQ

Kafka

Kubernetes

GCP

React

Swift

Kotlin

Python/ML frameworks

Playwright

Appium

Job description

Finom, a European fintech startup, is seeking a Senior Backend Engineer who thinks like a product builder. You will join a domain team with Backend, Frontend, Mobile, ML/AI, and QA engineers to own and evolve a shared product area across Europe.

You will ship robust, scalable infrastructure in .NET/C#, participate in architecture discussions, implement secure, testable solutions, and mentor teammates while delivering real value to hundreds of thousands of businesses.