Job Description
Location: Mumbai
Experience: 8+ Years
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 Solarflare OpenOnload.
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 a 0-15 day notice period or those who can join immediately will be given preference.