Software Engineer, Modular

• 5+ years of experience in high-performance computing, compiler engineering, or related domains in industry or research
• Familiarity with how AI operators are implemented at a low level (e.g., experience writing or modifying GPU kernels, custom operators, or working with frameworks like PyTorch at the C++ layer)
• Proficiency in C++ and experience working in complex, multi-component software systems
• Hands-on experience with at least one heterogeneous programming model (CUDA, SYCL, OpenCL, or similar), either as a user or contributor
• Some exposure to non-GPU accelerator architectures (DSPs, NPUs, or other hardware accelerators) is a strong plus
• Curiosity and willingness to learn new hardware platforms quickly, comfortable reading architecture manuals and vendor documentation
• A collaborative, team-oriented attitude and alignment with our culture

Desirable

• Implement and validate support for new hardware architectures across the Modular stack, working under the guidance of senior engineers on the team
• Write and optimize Mojo kernels targeting novel accelerator architectures, with a focus on correctness first and performance iteration
• Contribute to cross-team efforts improving portability infrastructure, tooling, and debugging workflows for new target hardware
• Collaborate with hardware vendor engineers to understand target platforms, build integration tests, and triage platform-specific issues
• Develop working knowledge of new hardware platforms — including ISA documentation, memory hierarchies, and vendor toolchains — and share findings with the team through demos and write-ups
• Participate in company events such as on-sites and hackathons, contributing to a collaborative and open engineering culture