Responsibilities

Running modern AI workloads at scale creates systems problems that rarely fit within a single layer of the stack. A slowdown that appears in a training job may originate in a GPU kernel, collective communication, data movement, container runtime, storage path, scheduler, or interaction between model architecture and hardware topology.
This role is a strong fit for an exceptional systems or performance engineer who wants to work on frontier AI infrastructure. Deep ML experience is valuable but not required; we care most about a track record of solving difficult systems problems at scale and the ability to become fluent in new parts of the ML stack quickly.
Profile end-to-end AI workloads and identify limiting resources across model code, GPU kernels, memory, collective communication, networking, storage, orchestration, and environment execution.
Build low-latency, high-throughput sampling and inference systems for large language models, including batching, scheduling, caching, load balancing, and efficient weight updates.
Optimize GPU execution through kernel and graph profiling, memory-layout improvements, reduced-precision computation, communication overlap, compilation, and targeted CUDA or Triton work.
Improve distributed training and reinforcement-learning performance across heterogeneous GPU and CPU workloads, variable-length rollouts, complex network topologies, and changing model architectures.
Design quantitative performance and capacity models that predict bottlenecks, explain scaling behavior, guide hardware and topology choices, and prioritize engineering work.
Build scheduling and load-balancing mechanisms that improve accelerator utilization while respecting memory, locality, topology, latency, and fault-domain constraints.
Design fault-tolerant distributed systems that detect failures early, isolate their impact, recover efficiently, and preserve correctness during long-running jobs.
Investigate difficult production issues such as kernel-level stalls, network-latency spikes, collective timeouts, memory fragmentation, stragglers, and performance regressions in containerized environments.
Develop benchmarks, profiling tools, performance dashboards, and regression tests that make system behavior visible and allow improvements to be measured under realistic workloads.
Partner with researchers to understand new models and algorithms, remove infrastructure constraints from the experimental loop, and translate successful optimizations into reusable platform capabilities.

Founding Senior Applied AI Engineer at Goaly · LumiJobs

Founding Senior Applied AI Engineer

Responsibilities

Company

Goaly

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