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Linux System Administration Specialist
3 weeks ago
We are seeking a highly skilled Linux system administrator to join our team. This role will be responsible for providing top-notch support and maintenance for our Linux systems in a high-availability, low-latency trading environment.
Key Responsibilities:- Provide L3-level support for Red Hat Enterprise Linux (RHEL) systems, ensuring uptime and performance for mission-critical systems
- Perform advanced troubleshooting of kernel-level issues, network stack optimizations, and performance bottlenecks
- Configure and tune systems for ultra-low latency, including CPU isolation, NUMA balancing, and huge pages
- Design and manage HA cluster setup, ensuring precise time synchronization across trading servers using NTP/PTP
- Leverage kernel bypass technologies like Solar flare to optimize network throughput
- Collaborate with networking and cybersecurity teams to ensure seamless operations and compliance
- At least 8 years of experience in Linux system administration, with deep expertise in RHEL
- Experience in low-latency system design, especially for financial services or trading platforms
- Familiarity with virtualization (VMware, KVM) and monitoring tools like Grafana
- Scripting skills (Bash, Python or Ansible)
- Certifications like RHCE, RHCA, or equivalent is highly preferred
- Exposure to ITIL practices and change management workflows
- Ability to work under pressure in a 24x7 mission-critical environment
- Competitive compensation package commensurate with experience and industry standards