Linux Administrator

Job Description

This role is for one of the Weekday's clients

Salary range: Rs 1200000 - Rs 1500000 (ie INR 12-15 LPA)

Min Experience: 3 years

Location: Pune

JobType: full-time

The Linux Administrator will be responsible for operating, maintaining, and optimizing on-premise Linux infrastructure that supports large-scale, distributed systems. This role requires deep expertise in Linux internals, release engineering, and system reliability, with hands-on ownership of deployments, troubleshooting, and performance in high-load, network-intensive environments.

Unlike cloud-centric roles, this position demands strong command-line diagnostics, kernel-level understanding, and the ability to resolve issues directly on bare-metal systems.

Requirements

Key Responsibilities

Linux Systems Administration

• Operate, tune, and troubleshoot bare-metal Linux servers (CPU, memory, storage, and networking)
• Perform deep OS-level diagnostics using system logs, process monitoring, and kernel tools
• Identify and resolve performance bottlenecks and system stability issues
  
  

• Own end-to-end release and deployment processes for on-prem systems
• Manage versioning, staged rollouts, and rollback strategies to ensure stable production releases
• Coordinate and execute controlled production deployments with minimal downtime
  
  

• Build, optimize, and debug Docker images
• Integrate containerized applications into on-prem environments
• Troubleshoot container runtime and system-level issues
  
  

• Monitor, validate, and troubleshoot network performance including latency, packet loss, and jitter
• Diagnose Wi-Fi performance issues in high-density, real-time environments
• Apply strong understanding of TCP/UDP, routing, and VLANs for issue resolution
  
  

• Develop and maintain Bash and Python scripts for automation, system tooling, and log analysis
• Improve operational efficiency through custom tooling and workflow automation
  
  

• Implement and maintain monitoring and alerting using tools such as Prometheus and Grafana
• Analyze logs and metrics to perform Root Cause Analysis (RCA)
• Ensure system visibility, reliability, and performance across environments
  
  

• Expert-level experience administering Linux systems (Ubuntu Server preferred)
• Strong understanding of Linux internals, processes, memory management, and networking
• Hands-on experience with release engineering, deployment strategies, and rollback mechanisms
• Proficiency with Docker, including image optimization and debugging
• Strong scripting skills in Bash and Python
• Solid networking fundamentals (TCP/IP, UDP, VLANs, routing, Wi-Fi troubleshooting)
• Practical experience with monitoring, observability, and log analysis tools (ELK, Prometheus, etc.)
  
  

• Background in Site Reliability Engineering (SRE) or Build/Release Engineering
• Experience running Kubernetes in on-prem or edge environments
• Operational experience with databases such as PostgreSQL, MongoDB, or Redis (availability, backups)
  
  

• Reliable and predictable system deployments with seamless rollback capability
• Clear system visibility through actionable metrics and logs
• Fast, accurate root-cause diagnosis at the OS, network, and application layers