Senior Multi-Target Runtime Engineer for AI Stack

Lemurian Labs Inc.; Santa Clara (CA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity

Medical/Dental/Vision

Retirement savings plan

Wellness benefits

Job summary

Lemurian Labs Inc. in Santa Clara, CA, is hiring a Runtime Engineer to design and build the multi-target runtime at the heart of our AI compiler stack.

This is a systems role focused on low-level parallelization, kernel scheduling, performance analysis, and cross-team collaboration to push AI hardware boundaries. You’ll work with compiler and product teams to optimize execution across diverse targets.

Qualifications

• BS degree in Computer Science, Computer Engineering, or equivalent practical experience.
• 4+ years of experience with compilers or runtime systems.
• Deep understanding of asynchronous and concurrent programming.
• 4+ years of experience with C/C++ (C++14 or newer).
• Understanding of hardware architecture and memory hierarchies.
• Knowledge of OS kernel or hypervisor development.

Responsibilities

• Design, develop, maintain, and improve our multi-target runtime.
• Apply parallelization and partitioning techniques to optimize kernel execution paths.
• Prototype and data-drive exploration of new runtime ideas.
• Benchmark and analyze compiler outputs on target hardware.
• Build tools to collect and analyze performance bottlenecks.
• Collaborate with product teams to meet ML engineer needs and evolve runtime architecture.

Skills

Compiler construction

Runtime systems

Asynchronous programming

C/C++

Parallelization

Kernel scheduling

Performance analysis

Education

BS in CS/CE

Master's/PhD (preferred)

Tools

CUDA

ROCm

Job description

Lemurian Labs Inc. in Santa Clara, CA, is hiring a Runtime Engineer to design and build the multi-target runtime at the heart of our AI compiler stack.

This is a systems role focused on low-level parallelization, kernel scheduling, performance analysis, and cross-team collaboration to push AI hardware boundaries. You’ll work with compiler and product teams to optimize execution across diverse targets.