CloudflareUnited StatesBuild and evolve Cloudflare's Durable Objects runtime, low-level routing, and storage systems for stateful serverless applications at global scale. Requires 5+ years systems software experience with deep expertise in Rust or C++ and large-scale distributed systems.
Senior backend engineer building scalable C#/.NET services for payment routing, connector management, and high-volume transaction processing in a fintech payments infrastructure platform. Requires 5+ years production backend experience, strong payments/fintech background, and technical leadership skills.
Senior Backend Engineer building core voice AI and automation platform for 911 centers. Architect scalable systems, optimize realtime AI pipelines and audio latency, build analytics and integrations. Requires 4+ years software engineering experience with strong fundamentals.
Senior Backend Engineer building scalable distributed systems for freight and field service automation platform. Requires significant enterprise software development experience and distributed systems expertise; Java ecosystem preferred.
Own and define the shared backend architecture, core services, data models, and APIs that power Mercor's rapidly scaling talent network and AI training products. Requires 8+ years backend engineering experience with a track record of organization-wide architectural ownership and complex migrations.
Senior backend-focused engineer building the next generation practice management platform at SimplePractice. Requires 6+ years Ruby on Rails full lifecycle experience (or 4+ with Master's), JavaScript frameworks, AI/ML features, scalable web apps, and compliance knowledge (PCI/HIPAA).