Senior / Lead Machine Learning Engineer, Serving - Germany

Навыки

• C++
• CUDA / ONNX / TensorRT
• Распределённые системы
• Kubernetes
• Лидерство
• LLM
• Инференс LLM

О компании и продукте

• Inworld is a research lab of top researchers and engineers, building the world’s top-ranked realtime voice models.
• Today our models are the #1 ranked realtime voice models in the world. They are used to power the largest consumer-facing AI applications available, across categories like health, fitness, learning, therapy, companions, customer experience and media; representing 100s of millions of end users. Our work spans areas like research and development of state-of-the-art models, optimizing realtime inference, and creating best-in-class APIs and products that allow developers to engage their users.
• We’ve raised more than $125M from Lightspeed, Section 32, Kleiner Perkins, Microsoft’s M12 venture fund, Founders Fund, Meta and Stanford, among others. Our technology has powered experiences from companies such as NVIDIA, Microsoft Xbox, Niantic, Logitech Streamlabs, Wishroll, Little Umbrella and Bible Chat. We’ve also been recognized by CB Insights as one of the 100 most promising AI companies globally and have been named one of LinkedIn’s Top 10 Startups in the USA.

Требования

• A year ago, reliably working agentic systems and sub-second multimodal inference at scale barely existed
• Nobody has a decade of experience here
• So we're not screening for a resume template — we're looking for strong people from varied backgrounds who learn fast, thrive in ambiguity, and can show us what they've built, broken, and understood
• Experience We Find Useful
• You don't need all of this. But you need enough to make a case
• Inference Optimization. Deep understanding of modern serving frameworks and techniques like vLLM or TRT-LLM
• Model Acceleration. Hands-on experience with quantization, distillation, caching strategies , continuous batching, paged attention, and speculative decoding
• High-Performance Systems
• Proficiency in C++, CUDA, Rust, or highly optimized Python
• You know how to profile code and squeeze every ounce of performance out of NVIDIA GPUs
• Distributed Systems & Scaling
• Experience with Kubernetes, Ray, custom load balancing, multi-GPU/multi-node inference, and reliably handling thousands of concurrent connections
• Public work. Non-trivial systems programming projects, open-source contributions to major inference engines, or deep-dive technical write-ups
• Full-cycle ownership. You can take a model from the research team, containerize it, optimize its serving, and ensure it runs reliably in production
• Background. PhD in CS, Physics, Math, or equivalent practical experience building backend or ML systems
• Professional fluency in English (written and spoken) is required, as you will be collaborating daily with our US-based leadership and engineering teams
• Who Thrives Here
• You don’t need a roadmap to start walking
• you’re comfortable picking a direction and building the map as you go
• You believe engineering isn't finished until it’s shipped and stable. You have a bias for impact over purely theoretical optimizations
• You don't just ship code
• you obsess over the why. You’re the first to question an architecture if you think there’s a better way to solve the core latency or throughput problem
• You aren't satisfied with "the PM said so." You thrive on deep context and want to understand the fundamental logic behind every decision we make
• What Working Here Is Like
• We hand you unclear problems and expect you to make them clear

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