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Samsung

Makes consumer electronics and semiconductor components

AI Systems Performance Engineer Intern

Hardware Validation & TestingPosted on Nov 13
Internship · Summer 2026San Jose, CA, USA

About the Job

Requirements

  • The candidate must be pursuing a PhD in Computer Science, Computer Engineering, Electrical Engineering, or a related field.
  • The candidate must have strong programming skills in Python and C/C++ in a Linux environment.
  • The candidate must have a solid understanding of computer architecture, including CPU caches, the memory hierarchy, and NUMA.
  • The candidate must have experience with performance profiling tools such as perf, eBPF, VTune, or Nsight.

Responsibilities

  • Build runtime adapters and a trace record/replay harness for AI agent frameworks.
  • Develop micro-kernel and end-to-end agent workload benchmarks that stress CPU, memory, storage, and accelerator subsystems.
  • Profile agent workloads with perf, eBPF, PMUs, and NVML/DCGM to break down per-turn latency and memory bandwidth usage.
  • Measure host DDR5, GPU HBM, and CXL.mem bandwidth and latency across Intel Xeon and/or AMD EPYC servers.
  • Evaluate multi-agent KV-cache sharing and CXL memory expansion on Samsung CXL expanders.
  • Build an initial memory tiering cost model for HBM, DDR5, and CXL for long-running MoE agent workloads.
  • Present findings in weekly team meetings, then deliver a final report and presentation.
  • Complete other responsibilities as assigned.

Desired Qualifications

  • Hands-on experience with LLM serving frameworks such as vLLM or SGLang, or GPU programming.
  • Familiarity with HBM, CXL, or heterogeneous memory systems.
  • Experience with AI agent frameworks or benchmark development.

About the Company

Samsung

Makes consumer electronics and semiconductor components

Samsung Electronics designs and manufactures consumer devices and electronic components for individuals, businesses and other technology manufacturers worldwide. Its product lines include Galaxy phones and tablets, televisions, home appliances, memory chips, processors and displays. The company develops hardware and software, runs manufacturing facilities and sells finished products through online and physical retail channels supported by a global sales network. It earns revenue from device and component sales, while its foundry business manufactures chips designed by customers. Samsung Electronics was founded in 1969 and is headquartered in Suwon, South Korea.

Company size
10,001+
Company stage
IPO
Headquarters
United States
Founded
1969

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