Performance Test Engineer

Lenovo Infrastructure Solutions Group (ISG) - Product Assurance is seeking a Performance Test Engineer to drive server performance validation across compute, memory, storage, network, and GPU domains. This role combines hands-on performance analysis with validation strategy, project ownership, and customer-facing collaboration.

This position is intended for an experienced validation or performance engineer with hands-on experience in server performance testing and analysis who can independently manage assigned validation scope while collaborating closely with experienced team members and cross-functional partners. We also welcome system integration test or validation engineers with substantial performance-related experience who are interested in specializing in performance validation, with opportunities and technical support to deepen their performance analysis capabilities and expand into GPU performance validation.

Key Responsibilities

• Own server performance validation activities across compute, memory, storage, network, GPU, and other subsystems.
• Perform performance analysis, regression analysis, issue isolation, bottleneck identification, and root cause investigation across different platforms, configurations, operating systems, and product generations.
• Execute and manage performance validation cycles, ensuring test coverage, execution quality, and milestone delivery.
• Produce technical reports documenting test configurations, methodologies, results, observations, bottlenecks, and recommendations.
• Identify test tooling, data processing, and automation requirements, and work with the internal automation team to define scope, priorities, and acceptance criteria.
• Design and review performance validation plans, benchmark methodologies, workload coverage, and acceptance criteria based on product architecture and customer requirements.
• Review customer requirements and platform design documents; define expected performance behavior and validation strategy accordingly.
• Plan and control test schedule and resources where applicable.
• Track and highlight performance defects, technical risks, validation gaps, and overall status to project teams and management.
• Represent performance validation in internal design reviews, issue-triage discussions, and customer-facing project meetings.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or related technical field.
• 8+ years of experience in server system validation, system integration testing, or performance engineering, with hands-on experience in server performance testing and analysis, covering server platforms, storage systems, or AI infrastructure.
• Hands-on experience in server performance testing and analysis, with demonstrated technical knowledge in at least one of the following domains:

  1. Compute and Memory: CPU performance, memory bandwidth, and NUMA behavior (e.g., STREAM, HPL, SPEC CPU)

  2. Storage: Throughput, IOPS, and latency across different storage devices (e.g., fio, IOmeter)

  3. Network: Throughput, latency, and tuning validation across Linux and Windows environments (e.g., NTttcp, iperf2/iperf3)

• Ability to independently investigate performance degradation beyond benchmark execution, including regression analysis, issue isolation, bottleneck identification, cross-platform comparison, and optimization recommendations.
• Experience in test planning, benchmark coverage definition, schedule control, and resource coordination across cross-functional teams.
• Working knowledge of Linux and Windows server environments, including common system resource monitoring tools (e.g., htop, iostat).
• Working knowledge of shell scripting, batch, or PowerShell for test execution and data handling.
• Ability to quickly learn and adapt to new server technologies and architectures, including next-generation GPU platforms.
• Ability to communicate technical requirements, findings, and risks in English, both written and verbal, in a cross-site working environment.

Preferred

• Experience with GPU server platforms such as NVIDIA GB200, GB300, or MGX-based systems, including GPU topology, NVLink, RDMA/RoCE, or GPU-to-network performance behavior, and related tools such as NCCL Tests, NVBandwidth, or DCGM.
• Experience validating ARM-based server platforms in addition to x86.
• Experience with performance data analysis, result aggregation, and visualization for regression tracking.
• Ability to independently analyze performance behavior and communicate technical conclusions to customers and stakeholders with strong technical backgrounds, with learning agility to adopt new server technologies.
• Advanced English proficiency for direct customer engagement.