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.