Senior Developer Tools Engineer

About the Company

At Lemurian Labs, we're reimagining the foundations of computing to make AI accessible to everyone. We're building a hardware-agnostic platform that makes every system — from a laptop to a supercomputer — feel like one seamless engine.

Responsibilities

• Design and build developer tools for profiling, debugging, and performance introspection across our compiler stack
• Create client-side tooling that transforms server-side compiler telemetry into clear, actionable information for engineers
• Develop interfaces that expose hardware performance metrics and interrupt data
• Build GPU debugging capabilities and visualization tools for heterogeneous hardware
• Define formats and protocols for debug information exchange using standard formats like DWARF, JTAG, ELF, and COFF
• Collaborate with internal engineering teams to iterate on tooling for future external customer use

Requirements

• 3+ years of professional experience in systems-level software development
• Strong proficiency in C++ with experience writing performance-critical code
• Working knowledge of assembly language and low-level debugging techniques
• Familiarity with debugger formats (DWARF, JTAG) and object file formats (ELF, COFF)
• Understanding of profiling methodologies and performance analysis tools
• Ability to work on-site in Toronto or Santa Clara

Preferred Qualifications

• Experience with GPU programming and debugging (CUDA, ROCm, or similar)
• Experience with OS-level interfaces including I/O subsystems and interrupt handling
• Background in compiler development or toolchain infrastructure
• Experience building developer-facing tools or IDEs
• Contributions to open-source debugging or profiling tools