ML Runtime Engineer

About this role:

• Own model compilation: turn partner ONNX models into optimized engines per accelerator (TensorRT, Hailo, AMD/ROCm), within power & thermal budgets.
• Build the ground-side compile & delivery path; define how a mismatched engine is detected/rejected on-node.
• Build performance tooling: benchmarking, profiling, operator-coverage matrices, and budget validation.
• Contribute to Space Inference Engine (execution providers) and the SDK (model build & packaging); coordinate the OBSW / Runtime team.

Must Haves:

• Strong C++ and Python.
• Model compilation: TensorRT (and/or equivalent graph compilers).
• ONNX Runtime, quantization & inference perf optimization.
• Embedded / edge GPU deployment (NVIDIA Jetson).
• Benchmarking & profiling / perf tooling.
• CI/CD incl. hardware-in-the-loop.

Nice to Haves:

• Hailo SDK and/or AMD ROCm compilation (iX10).
• Writing custom kernels / operator plugins.
• Remote sensing / large-image handling.
• RF / IQ signal data exposure.
• Meson build, Yocto / minimal Debian images.
• Model-weight protection / secure execution.

Some of Our Awesome Benefits:

• Equity, we want you to have an active role in our success.
• Up to 35 days of Paid Time Off (vacations & RTT) and flexible working hours, we want you to be at your best.
• Health and life insurance, we care about your health.
• Lunch Vouchers, because let’s be honest, we love food! (we even have a slack channel about it #loft-gourmand).
• Cross-office travel opportunities between San Francisco, Colorado, and Toulouse to learn from our differences.
• Company and team off-sites and many other events to work & celebrate together.
• Relocation assistance to Toulouse when applicable.

Who We Are:

Loft: Space Made Simple. Founded in 2017, Loft provides governments, companies, and research institutions with a fast, reliable, and simple way to deploy missions in orbit. We integrate, launch, and operate spacecraft, offering end-to-end missions as a service across Earth observation, IoT connectivity, on-orbit AI, national security missions, and more. Leveraging our existing space infrastructure and an extensive inventory of satellite buses, Loft is reducing years-long integration and launch timelines to months. With more than 30 missions flown, Loft’s flight heritage and proven technologies enable customers to focus on their mission objectives. With a growing fleet on track to reach 30 satellites by 2027, we are scaling up quickly across our offices in San Francisco, CA | Golden, CO | and Toulouse, France to meet accelerating demand for space infrastructure.

As an international company your resume will be reviewed by people across our offices so please attach a copy in English.