CareerPlan

Principal AI Performance Engineer

US - AustinFull-time2026-10-09 → 2026-11-10
Hybrid

Core

Define performance direction and optimization strategies for large-scale AI training and inference workloads across hardware, software, and system architecture.

Role type

Principal AI Performance Engineer (System Architecture)

Builds

High-performance AI infrastructure for data center deployments

Domain

AI Infrastructure / High-Performance Computing / Distributed Systems

Deliverable

production ML models

Required skills

Profiling and optimizing AI/ML/HPC workloads at scale, C++ and Python expertise, Distributed systems scaling behavior, Benchmarking and measurement standards, MPI/NCCL/UCX/libfabric/MLPerf knowledge, Technical leadership in system architecture

Preferred skills

Experience with accelerated architectures, High-performance interconnects, Returnship experience

Technologies

C++, Python, MPI, NCCL, UCX, libfabric, MLPerf

Responsibilities

Lead performance investigations from model behavior to multi-node scaling, Turn profiling and benchmarking evidence into technical roadmaps, Set measurement standards and distributed communication strategy, Review critical C++ and Python tools, Guide strategy and resolve complex tradeoffs, Raise performance-engineering standards across the organization

Seniority

Principal, hands-on IC with strategic influence