Senior Software Engineer (Platform Infrastructure)

RingCentral

📍 Valencia, Comunidad Valenciana, Spain

Full-time Informática y tecnología Posted February 20, 2026

Job Description

We are looking for an experienced Java Software Engineer to join our Platform team and help develop an award-winning REST API for our Unified Communications service.

In the Platform team, we build high-load infrastructure subsystems that address cross-cutting concerns in a geo-distributed environment, including API and WebSocket Gateways, distributed caches, and service discovery.

You will have the chance to design and develop highly available, globally distributed systems that maintain 99.999% availability, process more than 100,000 requests per second, handle more than a million concurrent WebSocket connections and consistently meet millisecond-level latency targets.

How we work

We operate with a flat team structure and value constructive technical discussions. Engineers participate in requirements clarification, design proposals, implementation reviews, and production incident analysis.

Technologies we work with

Java, Netty, Redis,...