Senior Backend Performance Engineer - Node.js (Europe)

About the job

We're hiring an engineer to build the backend infrastructure behind an exceptionally fast product — one that stays fast regardless of scale. The system is live and growing; your job is to drive latency down across every layer of the stack. This is a high-ownership role: you'll own backend performance across the platform and build custom infrastructure wherever off-the-shelf solutions can't keep up. What You'll Do Own backend performance across the platform — databases, APIs, queues, and background processing Design advanced caching and data synchronization systems Profile production systems and eliminate latency bottlenecks at every layer Build custom infrastructure where third-party...