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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Linux Systems Engineer - Low Latency - **Company:** Apetan Consulting - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Performance Management, C++ (Programming Language), Ubuntu (Operating System), CentOS, Program Optimization, Linux, Network Interface Controllers, Python (Programming Language), Linux Kernel, Linux Servers, Routing, Performance Tuning, Red Hat Enterprise Linux, Ansible, Shell Script, TCP/IP, Diagnostic Tools, Scripting, Computer Network Technologies, Real Time Systems, Software Troubleshooting, Git, Perf (Linux), Low Latency, Bare Metal - **Published:** September 4, 2026 - **Apply:** https://www.dice.com/job-detail/6c83ca79-1f84-4073-bb8f-f5da03120c3c ## About the Role * Strong hands-on experience with Linux, preferably RHEL/CentOS/Ubuntu. * Strong understanding of Linux internals and system performance. * Experience with CPU affinity, process/thread scheduling, NUMA, huge pages, and memory optimization. * Strong knowledge of TCP/IP, networking, routing, and network performance. * Experience with shell scripting and automation. * Strong troubleshooting and performance-analysis skills. * Experience with monitoring and diagnostic tools such as top, vmstat, iostat, perf, sar, and similar utilities. Low-Latency / Trading Experience * Experience supporting low-latency, high-performance, or real-time systems. * Understanding of latency optimization and performance benchmarking. * Experience with high-speed networking, kernel/network tuning, or specialized NICs is preferred. * Exposure to electronic trading, financial markets, or trading infrastructure is a strong advantage. Preferred Skills * Experience with DPDK, Solarflare/AMD Pensando, Mellanox/NVIDIA, or other high-performance networking technologies. * Knowledge of kernel tuning and Linux kernel configuration. * Experience with C/C++ environments and application performance troubleshooting. * Familiarity with Ansible, Python, Git, and CI/CD tools. * Experience with cloud and/or bare-metal infrastructure is an advantage. ## Description We are looking for a Senior Linux Systems Engineer with strong experience in Linux systems, performance tuning, and low-latency environments. The ideal candidate will be responsible for optimizing and maintaining high-performance Linux infrastructure supporting trading and other latency-sensitive applications., * Design, configure, and maintain high-performance Linux servers and systems. * Optimize Linux operating systems for low latency and high performance. * Perform system-level tuning of CPU, memory, networking, storage, and I/O. * Troubleshoot system performance, latency, stability, and production issues. * Monitor system health, resource utilization, and application performance. * Work closely with software developers, quantitative teams, and infrastructure engineers. * Automate system administration and operational tasks using scripting. * Support production environments and participate in incident resolution. * Implement and maintain system security, reliability, and availability standards. * Document configurations, processes, and performance-tuning practices. ## Related Videos - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Optimizing Your App for Success: Tips and Techniques for managing slow devices](https://www.wearedevelopers.com/videos/655-optimizing-your-app-for-success-tips-and-techniques-for-managing-slow-devices) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)