Linux and AWS Specialist

We are looking for an immediate joiner for the role Linux and AWS Administrator for Bangalore location. Please find below the detailed JD :

Tools : Zabbix, OPManager

OS : REDHAT, UBUNTU,SUSE

Responsibilities

• Monitor AWS infrastructure using tools like CloudWatch, CloudTrail, and third-party platforms (e.g., Datadog, New Relic).
• Respond to and resolve Level 2 incidents and service requests in a timely manner (within SLAs).
• Manage EC2 instances, S3 buckets, IAM users and roles, RDS, VPCs, and other core AWS services.
• Perform system patching, backups, and restore procedures.
• Assist in provisioning new resources via AWS Console, CLI, or Infrastructure as Code (e.g., CloudFormation, Terraform).
• Troubleshoot network, performance, and access-related issues.
• Maintain and implement security best practices including IAM policies, security groups, and encryption.
• Work with the DevOps or engineering team to support CI / CD pipelines, containerized applications (ECS, EKS, Docker).
• Analyze cost reports and help optimize AWS spending.
• Maintain documentation for systems, procedures, and operational playbooks.
• Administered Linux servers in a production environment, ensuring high availability and performance.
• Created and managed users and groups, implemented file and directory permissions using ACLs, and resolved access-related issues.
• Provided SUDO access to users and groups based on operational and security requirements.
• Configured SSH key-based authentication for secure and passwordless access.
• Created and extended file systems, monitored disk usage, and performed logical volume management (LVM) tasks, including volume creation, extension, and reduction.
• Performed data backups using tar and data compression using zip and related utilities.
• Cleaned up and compressed OS log files and managed system logs to optimize disk space.
• Conducted kernel upgrades and scheduled reboots as part of planned weekend maintenance.
• Installed and managed packages using YUM and RPM package managers.
• Tuned system performance by updating kernel parameters in coordination with application and database teams.
• Managed symbolic (soft) and hard links for efficient file and directory referencing.
• Applied sticky bits and managed shared directories for secure public access.
• Scheduled recurring administrative tasks using cron jobs for automation.
• Configured network bonding interfaces to improve network throughput and redundancy.
• Monitored CPU, memory, and disk utilization using tools such as top and uptime, and performed performance optimization as needed.
• Managed and monitored swap space and adjusted user limitations according to requirements.
• Cleaned up file systems upon reaching disk usage thresholds and performed in-depth log analysis for issue resolution.
• Performed fsck on inconsistent file systems and resolved mounting / unmounting issues.
• Handled secure file transfers using SCP and RSYNC protocols.
• Managed file and directory permissions, ownership changes, and access control based on operational requirements.
• Configured NTP (Network Time Protocol) for time synchronization across systems.
• Implemented and managed NFS servers with various mounting options for seamless file sharing.
• Hands-on experience with Ansible automation (playbooks and ad-hoc commands).
• Good understanding of Linux system administration and patching processes.
• Ability to write and modify YAML-based playbooks for repeatable tasks.
• Strong troubleshooting skills in automated environments.