Intern, AI Systems Performance Engineer

Samsung Semiconductor is hiring an Intern, AI Systems Performance Engineer in San Jose, CA (on-site). When: Summer 2027. Posted November 13, 2026. Applications close February 11, 2027. Checked against the employer's posting on November 14, 2026.

Please Note: To provide the best candidate experience amidst our high application volumes, each candidate is limited to 10 applications across all open jobs within a 6-month period.

Advancing the World’s Technology Together Our technology solutions power the tools you use every day--including smartphones, electric vehicles, hyperscale data centers, IoT devices, and so much more.

Here, you’ll have an opportunity to be part of a global leader whose innovative designs are pushing the boundaries of what’s possible and powering the future.

We believe innovation and growth are driven by an inclusive culture and a diverse workforce. We’re dedicated to empowering people to be their true selves.

Together, we’re building a better tomorrow for our employees, customers, partners, and communities. What You’ll Learn • Project Overview: Build AgentSysBench, a benchmark suite and profiling toolchain that measures how AI agent frameworks (Claude Code, Aider, LangGraph) use server resources: host CPU, DRAM, GPU HBM and CXL memory.

The results will guide memory system design for future AI data centers. • Skills You’ll Learn: • Profile system and microarchitecture performance with perf, eBPF, hardware PMUs and NVML/DCGM • Characterize memory hierarchies (HBM, DDR5, CXL) and build performance models • Benchmark LLM inference serving (vLLM/SGLang) on NVIDIA GPU servers What You’ll Do Our team researches the next-generation memory solutions for AI workloads, including HBM, DRAM, and CXL memory expansion.

This summer, you'll work on servers with Samsung CXL memory expanders and NVIDIA GPUs. You'll see how agentic AI workloads stress memory systems and how those findings feed into future memory product architecture design.

Location: Daily onsite presence at our San Jose headquarters in alignment with our Flexible Work policy Reports to: Sr. Director • 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 (HBM/DDR5/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.

What You Bring • Pursuing PhD in Computer Science, Computer Engineering, Electrical Engineering, or a related field • Strong programming skills in Python and C/C++ in a Linux environment • Solid understanding of computer architecture (CPU caches, the memory hierarchy, NUMA) • Experience with performance profiling tools (perf, eBPF, VTune, or Nsight) • Preferred: hands-on experience with LLM serving frameworks (vLLM, SGLang) or GPU programming • Preferred: familiarity with HBM, CXL, or heterogeneous memory systems • Preferred: experience with AI agent frameworks or benchmark development • You’re inclusive, adapting your style to the situation and diverse global norms of our people.

• An avid learner, you approach challenges with curiosity and resilience, seeking data to help build understanding. • You’re collaborative, building relationships, humbly offering support and openly welcoming approaches.

• Innovative and creative, you proactively explore new ideas and adapt quickly to change. #LI-AD1 What We Offer The pay range below is for all roles at this level across all US locations and functions.

Pay within this range varies by work location and may also depend on job-related knowledge, skills, and experience. This is in addition to our diverse package of benefits centered around the wellbeing of our employees and their loved ones.

In addition to the usual Medical/Dental/Vision, our inclusive rewards plan empowers our people to care for their whole selves. An investment in your future is an investment in ours.

Relocation Support Live 50+ miles away from your new office? No worries! We'll provide a stipend to help support your move. Housing Stipend Signing a lease on a new place for your summer internship?

We'll help you pay your way with a monthly stipend. Give Back With a charitable giving match and frequent opportunities to get involved, we take an active role in supporting the community.

Prioritize Emotional Wellness With on-demand apps and paid therapy sessions, you’ll have support no matter where you are. Stay Fit Eating well and being active are important parts of a healthy life.

Our onsite Café and gym, plus virtual classes, make it easier. Embrace Flexibility Benefits are best when you have the space to use them. That’s why we facilitate a flexible environment so you can find the right balance for you.

Hourly Base Pay Rate $28—$68 USD Equal Opportunity Employment Policy Samsung Semiconductor takes pride in being an equal opportunity workplace dedicated to fostering an environment where all individuals feel valued and empowered to excel, regardless of race, religion, color, age, disability, sex, gender identity, sexual orientation, ancestry, genetic information, marital status, national origin, political affiliation, or veteran status.

When selecting team members, we prioritize talent and qualities such as humility, kindness, and dedication. We extend comprehensive accommodations throughout our recruiting processes for candidates with disabilities, long-term conditions, neurodivergent individuals, or those requiring pregnancy-related support.

All candidates scheduled for an interview will receive guidance on requesting accommodations. Our Commitment to Innovation and Fairness At Samsung Semiconductor, we use Artificial Intelligence (AI) tools in the recruitment process to enhance efficiency.

However, AI is used as a support tool, not a final decision-maker. All hiring decisions are made by our human recruiting team and hiring managers to ensure every candidate is evaluated fairly and holistically.

Recruiting Agency Policy We do not accept unsolicited resumes. Only authorized recruitment agencies that have a current and valid agreement with Samsung Semiconductor, Inc.

are permitted to submit resumes for any job openings. Applicant AI Use Policy At Samsung Semiconductor, we support innovation and technology. However, to ensure a fair and authentic assessment, we ask that candidates rely on their own knowledge and skills throughout the process.

AI tools may be used for basic preparation, grammar, and research, but should not be used to generate or assist with submitted content or live interview responses.

If we determine that AI is being used outside these guidelines, we reserve the right to pause or end the interview, and your candidacy may be disqualified.

Trade Secret Notice By submitting an application, you agree not to disclose to Samsung—or encourage Samsung to use—any confidential or proprietary information (including trade secrets) belonging to a current or former employer or other entity.

Applicant Privacy Policy https://semiconductor.samsung.