Software Security Backend Engineer (Node.js and/or Python)

📍 Location: Kraków (hybrid: 2 days in the office per week)
📄 B2B: 200 - 250 PLN / h
🏦 Industry: Banking

We are currently looking for a Senior Software Security Engineer (Node.js and/or Python) to join a strategic global banking initiative focused on building modern, secure and scalable backend platforms within the cybersecurity domain. The role combines hands-on software engineering, cloud-native architecture and security engineering, with strong ownership of production-grade services and engineering excellence.

You will work within international cross-functional teams responsible for developing next-generation security products and services, contributing to the migration from vendor-based platforms toward open-source and cloud-native solutions deployed at enterprise scale.