Staff Machine Learning Engineer

Staff Machine Learning Engineer - San Francisco (Remote) - Start-up + EquityA long-standing client is expanding into the US and Europe. Starting with several hires in the US. This will involve working on a proactive AI assistant rather than a traditional chatbot, with highly reliable AI capable of completing multi-step tasks with minimal user promptingFocusBuild core ML systems that power a proactive, long-horizon AI product.Own work end-to-end: data preparation, training, evaluation, inference, and iteration.Turn research ideas into working systems that run reliably in production.Debug model failures and system issues using real production signals.Iterate quickly: ship, measure outcomes, refine, and repeat.Collaborate closely with research, product, and engineering to deliver real user impact.Mentor and review work from other ML engineers through example and technical judgment.Work under real production constraints: latency, cost, reliability, and safetyIdeal ExperienceYou have built and shipped ML systems used by real users.You understand how modern ML models behave — and misbehave — in production.You write strong, production-quality code and think in systems, not scripts.You take ownership, work independently, and push work across the finish line.You learn fast, communicate clearly, and improve through iteration.Python, PyTorch / JAX, GPU-based training and inference systemsApply directly of reach out: William@eu-recruit.comBy applying to this role, you understand that we may collect your personal data and store and process it on our systems. For more information, please see our Privacy Notice (https://eu-recruit.com/about-us/privacy-notice/)