System Administration Engineer

Position Summary

The System Administration Engineer will be responsible for maintaining and managing IT infrastructure systems including Red Hat Enterprise Linux (RHEL) servers, Microsoft Windows servers, Active Directory, DNS, Group Policy Objects (GPO), and automation tools like Terraform and Ansible. The engineer will ensure the health, security, and performance of all systems, while collaborating with cross-functional teams to deploy, monitor, and troubleshoot infrastructure. Key Responsibilities

System Administration & Infrastructure Management :

Administer and support RHEL and MS Windows Server environments, ensuring optimal performance, security, and availability. Perform system installation, configuration, and upgrades for both RHEL and Windows servers. Manage Active Directory (AD), DNS, and DHCP services, ensuring reliable and secure network operations. Create and maintain Group Policy Objects (GPO) to manage security settings and system configurations.

Automation & Configuration Management :

Develop and manage Infrastructure as Code (IaC) using Terraform for automating provisioning and deployment of cloud and on-premises infrastructure. Automate system configurations, deployments, and patching tasks using Ansible, ensuring consistency and compliance across environments. Create scripts to automate routine system administration tasks (shell scripting, PowerShell, etc.).

Monitoring & Performance Tuning :

Continuously monitor system performance, security, and availability; proactively troubleshoot and resolve issues. Implement performance tuning and optimization of server resources (CPU, memory, storage, and network). Set up and manage monitoring tools to detect and alert system anomalies.

Security Management :

Ensure compliance with internal security policies and external regulatory requirements. Perform regular system updates, security patches, and vulnerability assessments. Work with the security team to implement best practices for system hardening and securing servers.

Disaster Recovery & Backup Management :

Ensure that backup and disaster recovery solutions are in place and tested regularly for both RHEL and Windows Server environments. Create and implement disaster recovery plans to minimize downtime during critical events.

Collaboration & Support :

Collaborate with DevOps, Cloud, and Network teams to ensure seamless integration of infrastructure services. Provide on-call support during off-hours for urgent system outages or issues. Assist development teams with troubleshooting and deploying applications on supported servers.

Documentation & Reporting :

Maintain up-to-date system documentation, including server configurations, system setups, and standard operating procedures (SOPs). Generate and present system performance, security, and compliance reports to management.

Required Qualifications & Skills

Experience :

5 to 8 years of hands-on experience in system administration with a focus on RHEL and MS Windows Server environments. Technical Skills :

Strong experience with

RHEL

system administration, configuration, and troubleshooting. Proficient in managing

MS Windows Server

environments (2008 / 2012 / 2016 / 2019). In-depth knowledge of

Active Directory ,

DNS ,

Group Policy Objects (GPO) , and

DHCP

management. Familiarity with

Terraform

for Infrastructure as Code (IaC) and cloud provisioning. Expertise in using

Ansible

for automation and configuration management. Experience with

Linux / Windows Shell scripting

and automation via tools like PowerShell. Strong understanding of

networking protocols

(TCP / IP, HTTP, HTTPS, DNS, etc.) and basic network troubleshooting. Experience with system monitoring tools such as

Zabbix

or similar.

Preferred Qualifications

Certification in

Red Hat Certified Engineer (RHCE)

or similar. Certification in

Microsoft Certified Solutions Expert (MCSE)

or equivalent. Experience with

Oracle

or other cloud platforms for server management and automation. Knowledge of containerization technologies such as

Docker

or

Kubernetes . Soft Skills

Strong problem-solving and analytical abilities. Excellent communication skills, both verbal and written. Ability to work independently and in a collaborative team environment. Detail-oriented with a strong commitment to quality and process improvements

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