Benchmarking Engineer: Compute & Network Performance

Hitachi, Ltd.; Polska; Hybrid; PLN 180,000 - 280,000; Full time

Job summary

GlobalLogic is seeking a Performance / Infrastructure Benchmarking Engineer to join our Hardware Optimization Team. In this role, you will lead the benchmarking and performance validation of our compute and network fabrics, automate test execution using Ansible, and archive performance metrics in object storage with Parquet.

You will analyze large-scale benchmark results with Pandas to ensure our compute fleet operates at peak efficiency, and collaborate with software and infrastructure

Qualifications

• Bachelor of Science in Computer Science or related field with strong Linux and performance engineering experience.
• Hands-on benchmarking of compute, memory and network subsystems using industry-standard suites like iperf, sysbench and fio.
• Strong Python scripting and automation with Ansible.
• Experience with object storage (S3-compatible) and data analysis with Pandas/NumPy.

Responsibilities

• Configure, automate, and provision reproducible testbed environments across compute and networking infrastructure using an IaC approach (Ansible).
• Design, execute, and automate multi-node performance benchmarks measuring network throughput, latency, CPU, and I/O limits using tools such as iperf and sysbench.
• Build automated data ingestion pipelines that write and structure benchmark telemetry into object storage (S3) utilizing Parquet files for compact, query-optimized storage.
• Perform automated regression and statistical performance analysis on test results using Python and Pandas to detect hardware- or kernel-level regressions.
• Partner with software and infrastructure engineering teams to identify performance bottlenecks and validate system stability prior to production rollouts.

Skills

Python

Linux systems engineering

Test automation

Education

Bachelor of Science in Computer Science or related field

Tools

Ansible

Pandas

NumPy

Parquet

S3-compatible object storage

iperf

sysbench

fio

Job description

GlobalLogic is seeking a Performance / Infrastructure Benchmarking Engineer to join our Hardware Optimization Team. In this role, you will lead the benchmarking and performance validation of our compute and network fabrics, automate test execution using Ansible, and archive performance metrics in object storage with Parquet.

You will analyze large-scale benchmark results with Pandas to ensure our compute fleet operates at peak efficiency, and collaborate with software and infrastructure