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# Linux Engineer - Latency Critical Trading Technology

- **Company:** MILLENNIUM
- **Location:** New York, NY, United States
- **Salary:** $175,000.0 - $250,000.0
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Network Congestion, Linux, Memory Management, Perl (Programming Language), Network Interface Controllers, Field-Programmable Gate Array (FPGA), Internet Group Management Protocols, Python (Programming Language), Linux Kernel, Multicasting, Routing, Network Protocols, Ansible, TCP/IP, Information Technology, Low Latency
- **Published:** July 18, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=d3bf2d5018419d45

## About the Role

* Bachelor's degree in Computer Science or a related field.
 * Strong understanding of Linux system internals, including kernel operations, memory management, sockets, and interrupts.
 * Working knowledge of kernel bypass technologies such as Onload or VMA, including why they are used in low-latency environments.
 * Solid understanding of network protocols such as TCP/IP, UDP, and IGMP, and how the Linux kernel handles them.
 * Knowledge of FPGA accelerators and smart NICs, including their operation, maintenance, strengths, and limitations.
 * Ability to automate manual and infrastructure processes using Python, Perl, or another high-performance interpreted language; Ansible experience or a strong desire to develop it.
 * Some understanding of compiled programming languages such as C or C++ and their dependencies.
 * Clear, professional communication skills, a collaborative mindset, and a genuine passion for making Linux systems perform consistently at speed.

## Description

* Support and maintain the firm's globally distributed, trading-oriented Linux stack for latency-critical environments.
 * Partner with application developers and portfolio managers to understand business requirements and translate them into technical deliverables.
 * Assist in the design and build of new ultra-low-latency trading capabilities.
 * Monitor the performance, stability, and health of the latency-critical computing environment.
 * Troubleshoot complex production issues, including packet loss, high latency, instability, kernel bypass, routing and switching, multicast protocols, and precision timing systems.
 * Identify risks, develop contingency plans, and communicate client needs and platform priorities to regional and global leadership.
 * Automate operational tasks and contribute to improvements that strengthen platform reliability, performance, and supportability.
 * Participate in occasional monthly on-call responsibilities and help maintain documentation and training materials for the team.


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