Senior Software Developer

Nexi Digital

📍 Espoo, Uusimaa, Finland

Full-time Other-General Posted February 26, 2026

Job Description

Our AWS-based payment platform has powered Nordic transactions for years with a focus on security and high availability. We're now scaling out and rolling out new features to prepare for a broader European expansion. Join us to shape the next phase of a platform built to keep payments flowing reliably across Europe.
Role Overview
This is a senior developer role with architectural responsibilities. You will:
Write, deploy, and maintain production-grade backend code
Shape the architecture of distributed systems that prioritize consistency, resilience, and low-latency processing
Solve for reliability and scalability in a real-world, high-integrity transaction environment
Participate in operating and improving our system in production
Collaborate closely with teammates to make pragmatic, forward-looking decisions
Work closely with stakeholders across product, infrastructure, and operations
About The Team
We build and operate the backend that routes payment tr...