Senior Backend Engineer - Node.js Microservices & Payments

elockers; Amsterdam; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Gross salary €60k-€90k/year

Job summary

elockers is seeking a highly capable Senior Back-end Developer to strengthen a real-time payments and hardware-integrated platform. You will design and implement complex distributed systems, focusing on Node.js and microservices within a cloud-native setup.

You'll work hands-on, not as a manager, tackling live event-scale reliability and API integrations with Adyen and hardware locks across multiple countries.

Qualifications

• Independent, hands-on senior backend developer capable of designing and debugging distributed systems.
• Strong Node.js and microservices expertise with a focus on payments and hardware integration.
• Clear communicator who thrives in a small, fast-moving team.

Responsibilities

• Design, build, and debug complex microservices in a real-time payments platform.
• Integrate software with Adyen-based payments and IoT hardware components.
• Maintain CI/CD, documentation, and robust production reliability.

Skills

Node.js

Microservices

Distributed systems

Cloud engineering

Payments integration

IoT integration

React Native/Expo

Tools

DigitalOcean App Platform

Kafka

ClickHouse

Metabase

Sentry

New Relic

Jira

Job description

elockers is seeking a highly capable Senior Back-end Developer to strengthen a real-time payments and hardware-integrated platform. You will design and implement complex distributed systems, focusing on Node.js and microservices within a cloud-native setup.

You'll work hands-on, not as a manager, tackling live event-scale reliability and API integrations with Adyen and hardware locks across multiple countries.