Linux Systems Engineer

Job Function Summary

As a member of LCT s Linux infrastructure team, the candidate will work closely with application developers and portfolio managers to understand and translate business requirements into technical deliverables. The candidate will be expected to communicate effectively with a global team to handle requests and incidents from various high-profile clients, as well as participate in driving or contributing to building the team s configuration management system using Ansible and Python. Knowledge of kernel bypass technologies, and general latency and performance tuning practices would be helpful in this role, but are not strictly required.

Principal Responsibilities

• Part of the globally distributed engineering team that supports and maintains the firm s trading-oriented Linux stack
• Strong sense of task and mission ownership, ability to serve as a bridge between regions
• Participates in regular troubleshoots around issues such as packet loss, high latency, instability, etc.
• Proactively working to understand our internal clients needs, communicating them effectively to leadership both regionally and globally
• Identifying risks, forming contingency plans, and implementing them
• Monitoring the performance and health of the latency critical computing environment
• Driving or assisting in troubleshooting advanced system/network issues involving kernel bypass, complex routing and switching schemes, multicast protocols, and precision timing systems
• Participating in occasional (monthly) on-call responsibilities, and assisting the oncalls during their shifts
• A desire to learn and grow skillsets both independently and from other senior team members, and maintain training materials and documentation for others

Qualifications/Skills Required

• 
  Excellent ability to communicate respectfully and professionally with individuals and teams at varying levels of seniority from Intern to Senior Portfolio Manager
• An outgoing, positive attitude when facing off towards clients and management during incidents
• Strong grasp of Linux system internals, kernel operations, memory management, sockets, interrupts, etc
• Fundamental (or better) knowledge of kernel bypass (e.g. Onload, VMA, etc) technologies and why they exist
• Solid understanding of basic network protocols (TCP/IP, UDP, IGMP, etc) and how the kernel deals with them
• Ability to automate manual processes using Python, Perl, or another high-performance interpreted language
• Ability to automate infrastructure tasks in Ansible, or a strong desire to actively learn and participate in Ansible development
• Some understanding of compiled programming languages (C/Cpp) and their dependencies
• A desire to expand one s knowledge base, collaborate between areas, and contribute to building a strong and cohesive team within the region and beyond
• Ability to be on-site required, occasional travel to New York may be required.
• A genuine passion for making Linux go fast, and doing so consistently
• Salary is dependent on experience