Elockers runs the smart-locker platform that festivals, venues, and events across six countries rely on for real-time payments and marketplace-style payouts, including on-sale moments where a large share of a site's lockers can sell out within a minute. We're live in six countries, with further international expansion and two acquisitions underway.

Our platform is genuinely strong: microservices architecture (\~30 services), event-driven data flow, and a payments stack built for a real marketplace. This isn't a role about fixing something broken. It's about strengthening a platform that already works well, hands-on.

**The Role**

We're looking for an exceptionally strong, hands-on Senior Back-end Developer to work deep in our microservices platform, where software, payments, and physical hardware come together. You'll match our current technical level and raise it through your own hands-on work. You'll design, build, and debug complex systems yourself, with real technical depth.

**What you'll work on**

**•** Our microservices platform, with Node.js and modern architecture patterns at the core

**•** Cloud-native engineering on DigitalOcean App Platform: deployment, scaling, monitoring, and production reliability

**•** Reliability at peak: real-time payments and traffic spikes during live events, with zero tolerance for downtime

**•** Our Adyen-based payments and marketplace systems, and how our software connects to physical locks and hardware

**•** Engineering discipline: CI/CD, documentation, and AI-assisted development, as we raise an already-strong platform further

**What you'll bring**

**•** Deep, hands-on technical seniority. You independently design, build, and debug complex distributed systems

**•** Strong, current Node.js and microservices expertise, a core requirement

**•** Real soft skills and team fit. A clear communicator who works well in a small, fast-moving team

**•** Genuine ownership mentality. You step up when something business-critical is on the line

**•** Cloud/platform engineering experience, ideally DigitalOcean App Platform

**•** Payments or marketplace experience (Adyen, PSPs, split payments, KYC) and comfort with high-peak, mission-critical systems

**•** IoT/hardware integration experience is a genuine plus, our software talks to physical lockers

**•** Nice to have: React Native/Expo experience, multi-country scaling with GDPR awareness, background in events or ticketing

**Our stack today**

Microservices (\~30 services), moving toward Node.js at the core. Adyen for payments. Kafka, ClickHouse, Metabase for data. React Native/Expo for mobile. DigitalOcean, Sentry, New Relic, Jira for infra and tooling.

**What we offer**

**•** A gross annual salary of €60,000-€90,000, depending on experience

**•** Real technical depth, working on a platform where software, payments, and hardware genuinely come together

**Sound like you?**

The most efficient way to apply is to apply here op our website.

If you have any questions, feel free to give us a call or e-mail. 0615348554/brendan@elockers.com