Engineering

Business Development

Accounting

Operations

Media and Communication

Information Technology

Research

Human Resources

Entrepreneurship

AI research and product company building customizable AI systems

Co-Founder and Chief Executive Officer

Chief Technology Officer

UK AI start-up Callosum secures $100m in seed funding round

Accel raises $3.5B across four funds as AI reshapes early-stage VC

Welcome to the singularity: AI's architects say the next era of human history is here

Exclusive-Alibaba plans to charge big users of its next open-source AI model, sources say

Safety Researcher

Thinking Machines Lab builds AI that extends human will and judgment. The Safety Researcher will investigate model safety and trustworthiness, design experiments, and contribute across data curation, safety-focused fine-tuning, evaluations, synthetic data generation, and red-teaming.

Research, Safety

Researcher - Reinforcement Learning Scaling

Thinking Machines Lab builds AI that extends human will and judgment. The company is seeking a researcher to scale reinforcement learning for frontier models, with ownership spanning asynchronous RL algorithms, inference and training systems, distributed infrastructure, and run stability. The role includes conducting empirical studies and optimizing large-scale RL efficiency across accelerators, memory, communication, and numerical precision.

Research, RL Scaling

Software Engineer, Data Infrastructure

Thinking Machines Lab is focused on building AI that enhances human judgment and decision-making. They are looking for a Software Engineer to contribute to data infrastructure, working on scalable systems that support distributed training pipelines and data processing. The role involves collaborating with researchers and developing high-throughput systems for data management.

Software Engineer, Supercomputing

Thinking Machines Lab is focused on building AI that extends human will and judgment. They are seeking an engineer to design, build, and operate the GPU supercomputing environment that powers large-scale training and inference.

Research Engineer, Infrastructure, Inference

Thinking Machines Lab is dedicated to building AI that extends human will and judgment. They are seeking an infrastructure research engineer to design, optimize, and scale systems that power large AI models, ensuring efficient model inference for real-world applications and research advancements.

Research Engineer, Infrastructure, Numerics

Thinking Machines Lab is dedicated to building AI that extends human will and judgment. They are seeking an infrastructure research engineer to design and build core systems for efficient large-scale model training, focusing on numerics and distributed compute.

Research Engineer, Infrastructure, Kernels

Thinking Machines Lab is focused on building AI that extends human will and judgment. They are seeking an infrastructure research engineer to design, optimize, and maintain the compute foundations for large-scale language model training, collaborating closely with researchers and systems architects.

Software Engineer, Systems Generalist

Thinking Machines Lab is focused on building AI that extends human will and judgment. They are seeking generalist infrastructure and systems engineers to contribute to their core infrastructure, data infrastructure, and developer productivity efforts.

Research Engineer, Infrastructure, RL Systems

Thinking Machines Lab is dedicated to building AI that enhances human decision-making. They are seeking an Infrastructure Research Engineer to design and optimize systems for scalable reinforcement learning, ensuring efficient training and production readiness.

Research, Post-Training

Thinking Machines Lab is dedicated to building AI that enhances human will and judgment. The post-training researcher role is crucial for bridging raw model intelligence with practical applications, requiring a blend of research and engineering skills.