Senior Machine Learning Engineer

Cloudflare is a technology company focused on helping build a better Internet through its global network and Internet security and performance services. The Senior Machine Learning Engineer will develop and productionize models for Cloudflare’s serverless inference platform, optimize inference performance, and build benchmarking, evaluation, deployment, and observability tooling for AI applications at Internet scale.

Responsibilities:

• Develop, optimize, and productionize machine learning models for Cloudflare’s serverless inference platform, with a focus on performance, reliability, and model quality
• Build benchmarking and evaluation frameworks to measure latency, throughput, cost efficiency, and model behavior across LLMs, speech, vision, and other model families
• Improve inference performance through quantization, batching, caching, model compilation, runtime tuning, and accelerator-aware optimization
• Partner with systems engineers to integrate models into Cloudflare’s distributed inference infrastructure across a heterogeneous fleet of GPUs and next-generation accelerators
• Drive improvements to model deployment workflows, including validation, rollout safety, observability, regression testing, and operational readiness
• Collaborate with product and engineering teams to translate customer requirements into scalable ML capabilities for Workers AI
• Mentor engineers, contribute to technical direction, and raise the quality bar for production ML engineering practices across the team