▷ Apply in 3 Minutes L3 Linux Administrator

3 weeks ago

Mumbai, India E4 Software Services Full time

Job Description Job description: About the Role: - We are looking for an experienced L3 Linux Administrator to manage and optimize our low-latency trading infrastructure. The ideal candidate will have deep expertise in Linux system administration, performance tuning, and troubleshooting within high-frequency trading environments. Key Responsibilities: - System Optimization:Configure and tune Linux systems for ultra-low latency, including kernel parameter adjustments, CPU isolation, NUMA optimizations, and persistent huge pages. - Performance Monitoring Troubleshooting:Diagnose and resolve issues like high CPU utilization, network packet drops, disk I/O bottlenecks, and performance degradation using advanced tools ( perf , dropwatch , ethtool , etc.). - Network Configuration:Optimize network stack settings for trading environments and configure multicast networking for market data feeds. - Security Management:Secure FIX protocol communications and ensure compliance with industry standards through encryption and secure tunneling techniques. - High Availability (HA):Design and implement HA solutions for trading applications using tools like Pacemaker or Corosync. - Time Synchronization:Ensure precise time synchronization across trading servers using NTP/PTP configurations. - Kernel Bypass Technologies:Leverage technologies such as DPDK or Solarflare OpenOnload to enhance network performance. Required Skills Expertise: - Advanced knowledge of Linux system administration (RHEL/CentOS preferred). - Experience in low-latency system design and performance tuning. - Proficiency in troubleshooting tools (perf, strace, bpftrace). - Expertise in FIX protocol security and troubleshooting FIX engine connectivity issues. - Strong understanding of network stack optimizations (XPS/RPS tuning, IRQ balancing). - Familiarity with kernel bypass technologies like DPDK or Solar flare Open Onload. Preferred: - Experience in financial services or high-frequency trading environments. - Knowledge of monitoring tools like Prometheus, Grafana, or ELK Stack. - Proficiency in scripting languages such as Python or Bash. - Candidates with a0-15 day notice periodor those who can join immediately will be given preference.

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