Sr. Software Engineer - Inference Engine (Platform Software)

ABOUT THE JOB Software Engineer (Inference Engine) is responsible for developing and optimizing a high-performance inference engine for Large Language Models (LLMs) and multimodal LLMs running on FuriosaAI NPUs. In this role, you will proactively research and apply the state-of-the-art inference optimization techniques to our inference engine. You will work in close collaboration with the compiler and hardware teams to enhance the engine's performance to its full potential. RESPONSIBILITIES - Design and implement FuriosaAI’s next-generation inference engine for large and multimodal language models—comparable in capability to frameworks such as vLLM and SGLang—optimized for throughput, latency, and memory efficiency. - Design and implement advanced inference optimizations—such as speculative decoding, KV-cache management, tensor/model parallelism, memory-efficient execution, and scheduling—in our production inference engine. - Design and develop capabilities for distributed and scalable inference, including prefill–decode (PD) and encode–prefill–decode (EPD) disaggregation, disaggregated speculative decoding, and hierarchical and external KV-cache storage such as HiCache and Mooncake. - Collaborate closely with the Compiler team to co-design and optimize execution for FuriosaAI NPUs, improving system-level throughput, latency, and memory utilization. - Proactively research, evaluate, and integrate state-of-the-art inference optimization techniques and key features of LLM serving frameworks into our production inference engine. MINIMUM QUALIFICATIONS - BS degree in Computer Science, Engineering, or a related field, with at least 3 years of relevant industry experience, or equivalent practical experience - Proficiency in Rust or C++ programming skill - Knowledge and passion of deep learning, LLM, and/or generative AI models - Excellent problem-solving and data analysis skills. - Strong communication and collaboration skills. PREFERRED QUALIFICATIONS - Experience in building inference serving systems for large models, encompassing batching, scheduling, caching, and load balancing. - A deep understanding of performance optimization systems. - Proficiency in C++/CUDA or Triton kernel development - Contributions to open-source inference frameworks such as vLLM, SGLang, or TensorRT-LLM. CONTACT - recruit@furiosa.ai