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# Linux Systems Engineer

- **Company:** Fintal Partners
- **Location:** Chicago, IL, United States
- **Contract:** Permanent contract
- **Skills:** Bash Shell, BIOS, Configuration Management, Microarchitecture, Data Centers, Linux, Memory Management, Network Interface Controllers, Firmware, High-Frequency Trading, Linux Kernel, Multicasting, Performance Tuning, Remote Direct Memory Access, TCP/IP, Scripting, Extensible Firmware Interface, Software Troubleshooting, Reliability of Systems, Non-Uniform Memory Access, Infrastructure Automation Frameworks, Bare Metal, Hardware Infrastructure
- **Published:** November 9, 2026
- **Apply:** https://www.thejobnetwork.com/job/8c436635-37d5-4ace-b5ed-5457f68aa159/linux-systems-engineer

## About the Role

The ideal candidate will have deep Linux engineering experience, strong knowledge of operating system internals and hands-on experience working with physical server hardware in performance-critical environments., * Strong commercial experience as a Linux Systems Engineer or Linux Infrastructure Engineer.
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 * Extensive hands-on experience building and managing Linux on bare-metal physical servers.
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 * Deep understanding of Linux internals, kernel architecture and operating system behavior.
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 * Experience with Linux performance tuning and low-latency optimization.
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 * Strong knowledge of CPU architecture, NUMA, memory management, interrupts and processor scheduling.
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 * Experience with server hardware, BIOS/UEFI and firmware configuration.
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 * Strong troubleshooting and performance analysis capabilities.
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 * Proficiency in Bash and/or Python scripting.
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 * Experience with infrastructure automation and configuration management.
\n, * Experience optimizing Linux for microsecond or sub-microsecond latency.
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 * Knowledge of Solarflare, Xilinx or NVIDIA/Mellanox network cards.
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 * Experience with DPDK, OpenOnload, RDMA or kernel bypass technologies.
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 * Understanding of TCP/IP, UDP, multicast and high-performance networking.
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 * Familiarity with Intel Xeon and AMD EPYC architectures.
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 * Experience with PTP, hardware timestamping and colocated data center environments.
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## Description

We are looking for an experienced Linux Systems Engineer to join a high-performance technology team within a high-frequency trading firm., The role will focus on building, maintaining and optimizing bare-metal Linux infrastructure, with an emphasis on ultra-low-latency performance, hardware optimization and system reliability.