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Manager/Sr Manager Linux Administrator in Stock exchange Kurla,Mumbai
2 weeks ago
RHEL Linux L3 Administrator - Tier 3 (Expert-Level Support):
The candidate must have proven expertise in:
Provide L3-level support for Red Hat Enterprise Linux (RHEL) systems in a high-availability, low-latency trading environment
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
Ensure 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.
Ensure 24x7x365 uptime and performance for mission-critical systems
Implement system hardening and security controls as per SEBI guidelines
Plan and implement capacity upgrades, patches, and hotfixes
Automate tasks using scripts (like Bash, Python or Ansible).
Support audits and compliance checks (ISO 27001, SEBI regulations).
Apply best practices across environments for system and service management.
Ideal Background:
812 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.
Compensation:
Commensurate with experience and industry standards
