Samsung Semiconductor · 2 days ago
Staff, CPU Architecture & Performance Research Engineer
San Jose, CA, US
Full-time
Onsite
Senior Level, Lead/Staff
$163K/yr - $253K/yr
5+ years expSamsung Semiconductor is a global leader in technology solutions powering various devices and systems. They are seeking a Staff CPU Architecture & Performance Engineer to drive performance analysis and architectural optimization for CPU cores, collaborating with various teams to enhance performance across workloads.
Semiconductor
Responsibilities
Own performance analysis for one or more CPU microarchitectural domains (e.g., frontend, execution engine, memory subsystem)
Build, extend, and validate architectural performance models and simulators
Perform CPI/IPC breakdowns and root-cause performance bottlenecks
Evaluate microarchitectural features and optimizations using trace-driven, analytical, and cycle-accurate models
Characterize workloads and benchmarks (SPEC, server, client, AI/ML, internal traces)
Translate performance data into clear architectural recommendations
Work leading to patents and publication
Qualification
Required
Master's in Computer Engineering, Computer Science or related filed with 8+ years of experience or PhD in Computer Engineering, Computer Science, or related field with 5+ years of experience
5+ years of experience in CPU microarchitecture and/or performance engineering
Experience with RISC-V, ARM or X86 architectures
Strong understanding of: Out-of-order execution, branch prediction, pipelines, and speculation
Strong understanding of: Cache coherence, memory systems, prefetching, and NUMA effects
Hands-on experience with architectural simulators (like gem5)
Strong programming skills in C/C++ and Python
Experience analyzing large performance datasets and traces
Familiarity with compiler optimizations and hardware/software co-design
Proven ability - prior tapeout experience
Preferred
Background in power/performance/area (PPA) trade-off analysis
Experience / Familiarity with SIMD / Vectors / VME for AI inference workloads
Prior leadership guiding junior engineers
Prior patent / publication experience
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
Benefits
Medical/Dental/Vision/401k
Charitable giving match
Company
Samsung Semiconductor
Samsung Semiconductor, Inc. (SSI) is a multi-billion dollar wide range of industry-leading semiconductor solutions.
Founded in 1974San Jose, California, USA
10001+ employees
H1B Sponsorship
Samsung Semiconductor has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (130)
2024 (110)
2023 (153)
2022 (134)
2021 (124)
2020 (134)
Funding
Current Stage
Late StageLeadership Team
Daehee Lee
Principal Engineer
Eric Hibbard
Director, Product Planning – Security
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