Senior Linux System Administrator

1 week ago

India Swift Strategic Staff Solutions INC Full time

Job Description :

We are seeking a highly skilled and experienced Senior Linux System Administrator to join our team and play a vital role in managing and optimizing our Linux infrastructure on the AWS platform.


Minimum Requirements :

  • 9+ years of experience in Linux system administration with a strong focus on Red Hat Enterprise Linux (RHEL).
  • Proven experience in administering and maintaining RHEL instances on the AWS platform (EC2).
  • Indepth knowledge of monitoring and troubleshooting Linux systems and applications.
  • Handson experience in performance monitoring tools and techniques for scaling cloud environments.
  • Experience with Linux system patching procedures, including preupdate snapshots and vulnerability management.
  • Strong understanding of security best practices in a cloud environment, including cookie security, web browser security, serverside encryption, data encryption at rest, and key management.
  • Experience with Red Hat Image management for containerized deployments.
  • Familiarity with cloud infrastructure, specifically Amazon Web Services (AWS) services like :
  • EC2 (Elastic Compute Cloud)
  • S3 (Simple Storage Service)
  • RDS (Relational Database Service)
  • ELB (Elastic Load Balancing)
  • SSM (Systems Management Service)
  • EBS (Elastic Block Store)
  • Experience with installing, configuring, and maintaining common Linux services :
  • Bind (DNS server)
  • Apache (web server)
  • Nginx (web server)
  • MySQL (database server)
  • Proficiency with automation and configuration management tools such as Ansible, CloudFormation, Puppet, or Chef.
  • Strong scripting skills in Bash or Python for automating administrative tasks.
  • Solid understanding of networking concepts, including VPCs (Virtual Private Clouds), subnets, and routing.
  • Familiarity with network troubleshooting tools like iptables, Linux IPVS, and HAP Roxy.
  • Experience in capturing, interpreting, and analyzing network traffic.
  • Working knowledge of network protocols like DNS, HTTP, LDAP, SMTP, and SNMP.
  • Ability to troubleshoot Apache issues like performance bottlenecks, restart failures, and request queuing.
  • Experience with multiplatform volume management solutions like LVM (Logical Volume Manager), ZFS, NAS (Network Attached Storage), and VERITAS Volume Manager.
  • Experience implementing security controls in an AWS cloud environment.
  • Familiarity with wired and wireless networking hardware and architectures, including VLAN (Virtual LAN) setup, VPN, routing, IPv4, and IPv6.
  • Experience managing user accounts for a large organization.

Desired Skills :

  • Linux certifications (RHCT, RHCE, LPIC) are a plus.
  • Experience with container orchestration platforms like Docker and Kubernetes.
  • Experience with Infrastructure as Code (IaC) methodologies.

Responsibilities :

  • Manage and maintain Red Hat Enterprise Linux instances on the AWS platform.
  • Perform system monitoring, troubleshooting, and performance optimization.
  • Implement and maintain Linux system patches and updates, ensuring proper security measures.
  • Configure and manage security controls to ensure a secure cloud environment.
  • Manage Red Hat Image repositories and container deployments.
  • Automate routine administrative tasks using scripting and configuration management tools.
  • Provide support for various Linux services like Bind, Apache, Nginx, and MySQL.
  • Troubleshoot and resolve networking issues.
  • Manage and maintain user accounts and access controls.
  • Stay uptodate with the latest advancements in Linux administration and AWS services.
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