Lead System Administrator

Position Title:

Lead
- System Admin.

Experience Required :
7 to 10+ years of experience in Application Deployment, System Administration, and Infrastructure Support.
Minimum 2+ years of experience in handling Production Application Environments.
Experience in managing enterprise applications in Windows and Linux environments.

Preferred Certifications :
Microsoft Certified:
Azure Administrator / Azure Solutions Architect
Red Hat Certified System Administrator (RHCSA/RHCE)
Docker / Kubernetes Certification (Preferred)
ITIL Foundation Certification
Azure Dev Ops or CI/CD related certifications (Preferred)

Roles and Responsibilities :
Application Deployment & Management :
Deploy, configure, manage, and maintain enterprise applications in
Production, UAT, and Development environments
Handle application installation, upgrades, migrations, and patch deployments
Monitor application availability, uptime, and performance
Troubleshoot application-related issues and coordinate with development teams for resolution
Ensure smooth application rollout with minimum downtime

Web Application & Server Administration :
Manage IIS, NGINX, and Apache Web Servers
Host and support applications built on:
.NET Framework / .NET Core
Java-based applications (Tomcat/Web Logic if applicable)
Python applications (Flask/Django)
Configure SSL certificates, virtual hosts, reverse proxy, and load balancing
Optimize web and application server performance

Container & Cloud Management
Deploy and manage Docker containers in Windows and Linux environments
Support Azure cloud infrastructure including VMs, storage, networking, and
monitoring
Manage Azure Kubernetes Service (AKS) and containerized applications
Support cloud migration and hybrid infrastructure deployment activities

Windows & Linux Administration
Manage Windows Server and Linux Server environments
Perform server patching, security hardening, upgrades, and maintenance
activities
Ensure server health, availability, and performance optimization
Handle storage, DNS, DHCP, and related infrastructure services

Monitoring, Backup & Maintenance
Implement and maintain monitoring tools such as PRTG, Zabbix, Grafana,
and Prometheus
Monitor application logs, server health, and infrastructure alerts
Manage backup operations and disaster recovery procedures
Ensure SLA compliance and proactive issue resolution

Incident & Problem Management

Handle L2/L3 troubleshooting for production application and infrastructure
issues
Perform Root Cause Analysis (RCA) for critical incidents
Coordinate with network, security, and development teams during outages or
deployment activities
Maintain incident records and technical documentation

Automation & Documentation
Automate deployment and maintenance tasks using Power Shell, Shell
Scripting, or Dev Ops tools
Create and maintain SOPs, deployment documents, and operational
runbooks
Support CI/CD deployment pipelines and release management processes

Required Technical Skills :
Mus t Have Skills :
IIS Web Server Management
NGINX / Apache Web Server Administration
Application Deployment & Troubleshooting
Kubernetes Administration (AKS / On-Prem Clusters)
CI/CD Tools (Azure Dev Ops, Jenkins, Git Lab CI)
.NET / Java / Python application hosting support
Docker Container Management
Microsoft Azure Administration
Active Directory (AD DS, GPO Management)
DNS, DHCP, SSL Certificate Management
Monitoring, Backup, and Patch Management
Incident Management & RCA Handling

Good to Have Skills :
Windows Server Administration (2016/2019/2022)
Linux Server Administration (RHEL, Ubuntu, CentOS)
Power Shell & Shell Scripting
Dev Ops Toolchain Knowledge
VMware / Hyper-V Virtualization
Sophos Firewall or Enterprise Firewall Knowledge
Infrastructure as Code (Terraform / ARM Templates)
Cloud Security & System Hardening Practices

Key Competencies
Strong troubleshooting and analytical skills
Experience in managing production environments
Good communication and coordination skills
Ability to work under pressure and handle critical incidents
Understanding of ITIL processes and change management
Team handling and coordination capability (preferred)