Jobs.ca
Jobs.ca
Language
Lemurian Labs logo

Runtime Engineer

Lemurian Labsabout 22 hours ago
Hybrid
Toronto, Ontario
Mid Level
full_time

Top Benefits

Equity and bonus opportunities
Medical, dental, and vision coverage
Retirement savings plan

About the role

At Lemurian Labs, we’re on a mission to bring the power of AI to everyone—without leaving a massive environmental footprint. We care deeply about the impact AI has on our society and planet, and we’re building a rock-solid foundation for its future, ensuring AI grows sustainably and responsibly. Because let’s face it, what good is innovation if it doesn’t help the world?

We are building a high-performance, portable compiler that lets developers “build once, deploy anywhere.” Yes, anywhere. We’re talking about seamless cross-platform compatibility, so you can train your models in the cloud, deploy them to the edge, and everything in between—all while optimizing for resource efficiency and scalability.

If the idea of sustainably scaling AI motivates you and you’re excited about making AI development both powerful and accessible, then we’d love to have you. Join us at Lemurian Labs, where you can have fun building the future—without leaving a mess behind.

Key Duties

  • Design, develop, maintain and improve our multi-target runtime
  • Use the latest techniques in parallelization and partitioning to automate generation and exploit highly optimized kernels
  • Rapid prototyping and data driven exploration of new ideas
  • Benchmark and analyze the outputs produced by our optimizing compiler on target hardware
  • Work closely with our product team to understand the evolving needs of ML engineers and drive improvements in architecture
  • Build tools to collect and analyze performance bottlenecks

Essential Skills and Experience

  • A deep understanding of asynchronous, concurrent programming.
  • 4+ years of experience with C/C++ (C++14 or newer)
  • An understanding of HW architecture (vector vs scalar registers and instructions, memory hierarchies).
  • Knowledge of operating system kernel development or hypervisor development

Preferred Skills and Experience

  • Experience developing or maintaining libraries like CUDA or ROCm

  • Experience with GPU programming.

  • Experience with high performance computing (HPC)

  • Masters or PhD degree in computer science, or equivalent practical experience

  • Knowledge of DL frameworks such as PyTorch, JAX or Triton

  • Experience with programming large compute clusters

Salary depends on experience and geographical location. 

This salary range may be inclusive of several career levels and will be narrowed during the interview process based on a number of factors, such as candidate’s experience, knowledge, skills and abilities, as well as internal equity among our team. 

Additional benefits for this role may include: equity, company bonus opportunities; medical, dental, and vision benefits; retirement savings plan; and supplemental wellness benefits.

Lemurian Labs ensures equal employment opportunity without discrimination or harassment based on race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity or expression, age, disability, national origin, marital or domestic/civil partnership status, genetic information, citizenship status, veteran status, or any other characteristic protected by law.

EOE

About Lemurian Labs

Technology, Information and Internet
11-50

AI development is stuck in the past—bloated costs, rigid hardware dependencies, and systems so complex they require a support group to navigate. We think that’s ridiculous.

Lemurian Labs is here to change that. Our AI compute platform works across any hardware—no vendor lock-in, no overhyped “breakthroughs” that require a million-dollar budget, just raw performance, and total flexibility. Build, train, and deploy AI wherever you want, without the usual hoops to jump through.

We’re engineers, mathematicians, and builders who are done watching AI get buried under unnecessary complexity. Speed and efficiency shouldn’t come at the cost of accessibility. AI should work for you, not force you to play by someone else’s rules.

🔗 www.lemurianlabs.com