Principal engineer, AI Serving Framework Architect (Software)

Samsung Semiconductor•San Jose, CA

3h•Onsite

About The Position

The Architecture Research Lab (ARL) focuses on addressing fundamental system-level bottlenecks in modern AI, particularly in memory capacity/bandwidth and system-scale communication. By leveraging Samsung’s world-class memory technologies, ARL explores and defines next-generation AI system architectures that deliver step-function improvements in performance, efficiency, and scalability. We are seeking a Principal AI System Architect who will play a key role in bridging AI workloads, system architecture, and hardware design. In this role, you will develop system-level performance models, drive architecture-level design decisions, and propose forward-looking AI system architectures that shape Samsung’s long-term AI platform strategy.

Requirements

PhD in Computer Science or a related field with 15+ years of experience in AI Serving Framework for large-scale computing, with focusing on the AI workloads.
Led a project to build and optimize a Large Language Model (LLM) Inference Software Stack on a multi-rack scale system to deliver AI Inference services to over 100,000 users.
Extensive experience in designing AI Inference Software Stacks for heterogeneous devices.
In-depth understanding of the internal architecture and operation mechanisms of inference engines such as vLLM.
Proficiency in AI Inference System Profiling and optimization.
Knowledge and practical experience with future AI workloads, including reasoning models, multi-modal solutions, AI agents, and world models.
Strong understanding of compute, memory, and networking bottlenecks in AI systems.
Required skillsets: PyTorch, Python, and C++
A collaborative mindset, curiosity, and resilience in solving complex challenges.
Excellent verbal, presentation, and written communication skills.
You’re inclusive, adapting your style to the situation and diverse global norms of our people.
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

Nice To Haves

Native or fluent Korean speakers are preferred.

Responsibilities

As a Tech Lead, leading research teams in Korea and proposing technical direction
Research on dynamic scheduling methodologies for maximizing AI inference performance in multi-rack scale memory-centric systems, comprised of heterogeneous compute-capable memory and hierarchical memory
Investigating methods to accelerate search operations in RAG’s vector DB and AI Agent’s knowledge-graph by leveraging compute-capable memory
Studying strategies for optimally placing KVCache and a vector DB in hierarchical memory to minimize frequent SSD accesses and reduce IO stalls
Proposing SW design for implementing the derived optimization algorithms on open-source platforms such as vLLM

Benefits

Give Back With a charitable giving match and frequent opportunities to get involved, we take an active role in supporting the community.
Enjoy Time Away You’ll start with 4+ weeks of paid time off a year, plus holidays and sick leave, to rest and recharge.
Care for Family Whatever family means to you, we want to support you along the way—including a stipend for fertility care or adoption, medical travel support, and virtual vet care for your fur babies.
Prioritize Emotional Wellness With on-demand apps and free confidential 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.

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