About H: H exists to push the boundaries of superintelligence with agentic AI. By automating complex, multi-step tasks typically performed by humans, AI agents will help unlock full human potential.
H is hiring the world’s best AI talent, seeking those who are dedicated as much to building safely and responsibly as to advancing disruptive agentic capabilities. We promote a mindset of openness, learning and collaboration, where everyone has something to contribute.
Holistic, Humanist, Humble.
About the Team: The Inference team develops and enhances the inference stack for serving H-models that power our agent technology. The team focuses on optimizing hardware utilization to reach high throughput, low latency and cost efficiency in order to deliver a seamless user experience.
Role Description:
Develop scalable, low-latency and cost effective inference pipelines
Optimize model performance: memory usage, throughput, and latency, using advanced techniques like distributed computing, model compression, quantization and caching mechanisms
Develop specialized GPU kernels for performance-critical tasks like attention mechanisms, matrix multiplications, etc.
Collaborate with H research teams on model architectures to enhance efficiency during inference
Review state-of-the-art papers to improve memory usage, throughput and latency (Flash attention, Paged Attention, Continuous batching, etc.)
Prioritize and implement state-of-the-art inference techniques
Requirements:
Technical skills:
MS or PhD in Computer Science, Machine Learning or related fields
Proficient in at least one of the following programming languages: Python, Rust or C/C++
Experience in GPU programming such as CUDA, Open AI Triton, Metal, etc.
Experience in model compression and quantization techniques
Soft skills
Collaborative mindset, thriving in dynamic, multidisciplinary teams
Strong communication and presentation skills
Eager to explore new challenges
Bonuses:
Experience with LLM serving frameworks such as vLLM, TensorRT-LLM, SGLang, llama.cpp, etc.
Experience with CUDA kernel programming and NCCL
Experience in deep learning inference framework (Pytorch/execuTorch, ONNX Runtime, GGML, etc.)
Location:
H's teams are distributed throughout France, the UK, and the US
This role has the potential to be fully remote or hybrid for candidates based in cities where we have an office - currently Paris and London
The final decision for this will lie with the hiring manager for each individual role
What We Offer:
Join the exciting journey of shaping the future of AI, and be part of the early days of one of the hottest AI startups
Collaborate with a fun, dynamic and multicultural team, working alongside world-class AI talent in a highly collaborative environment
Enjoy a competitive salary
Unlock opportunities for professional growth, continuous learning, and career development
If you want to change the status quo in AI, join us.
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Are you ready to join a groundbreaking team at H as a Member of Technical Staff (Inference)? At H, we're on a mission to redefine the limits of superintelligence with agentic AI, working tirelessly to automate complex tasks typically performed by humans. The Inference team is crucial to this mission, dedicated to developing and enhancing the inference stack that powers our revolutionary agent technology. In this role, you'll be developing scalable, low-latency inference pipelines and optimizing model performance through advanced techniques, all while collaborating with top-notch research teams. Your expertise in GPU programming and model optimization will be vital as you create specialized GPU kernels for tasks that demand exceptional performance. We’re looking for curious minds with a strong collaborative spirit, and if you have a MS or PhD in Computer Science or Machine Learning, and experience in programming languages like Python or C/C++, you might be the perfect fit. Here at H, every team member contributes to shaping the future of AI in an open and learning-focused environment. We offer a competitive salary and ample opportunities for professional growth. If you’re excited to work alongside world-class talent and tackle the challenges of agentic AI, come join us in transforming the way the world interacts with technology!
Hahn & Company is a private equity investment firm specializing in buyouts and corporate restructurings in South Korea. It is one of the largest private equity investment firms operating in North Asia.
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