Senior Systems Administraror

Job Description Roles & Responsibilities Key Responsibilities Administer Windows Server and Linux VM environments Ubuntu/RHEL, ensuring high availability, performance, and security compliance Administer Dell blade server environments and enterprise SAN/NAS storage performance tuning and capacity planning Oversee VMware vSphere environment including ESXi hosts, vCenter, and VM lifecycle management Maintain high availability configurations and ensure infrastructure resilience for production systems Lead regular maintenance windows, patching cycles, and hardware lifecycle planning SQL Server Administration (Must-Have) Manage and maintain SQL Server databases across multiple environments dev, staging, QA, production Administer SQL Server Always On Availability Groups and/or Failover Cluster Instances Perform database performance tuning, index optimization, and query analysis Execute and validate backup, restore, and DR procedures for SQL environments Partner with development teams to troubleshoot slow queries and support schema changes Manage SQL security, roles, permissions, and auditing best practices Windows / IIS Administration (Must-Have) Manage and maintain IIS web server configurations for .NET applications across multiple servers Administer application pools, SSL certificate bindings, and site configurations Troubleshoot IIS performance issues, 500-series errors, and application layer problems Support Active Directory, DNS, DHCP, Group Policy, and Windows Server services DevOps & Automation Maintain and improve CI/CD pipelines supporting application deployments TeamCity, Octopus Deploy, or similar Write and maintain automation scripts to reduce manual operational work PowerShell, Bash, Python Manage Docker-based containerized workloads and support container orchestration Support Infrastructure as Code practices for environment provisioning and configuration management Collaborate with development teams to streamline deployment processes and improve release reliability Cloud & Hybrid Infrastructure Manage cloud-hosted environments on Azure, AWS and GCP VMs, backups, region-specific customer environments Administer Veeam Backup for both local NAS and cloud-based backup targets Support hybrid connectivity, VPN management, and cross-region performance Optimize cloud resource usage and manage costs across environments Networking & Security Manage firewalls, VLANs, routing, and network segmentation in a datacenter environment Oversee HAProxy or similar load balancing configurations across web and application tiers Enforce security policies, conduct access reviews, and support compliance requirements Manage SSL certificate lifecycle across internal and customer-facing services Monitoring & Incident Response Maintain infrastructure and application monitoring using tools such as Zabbix, LogicMonitor, Graylog, or similar Lead root cause analysis for production incidents and communicate findings to stakeholders Provide on-call support for critical infrastructure issues Document runbooks, incident response procedures, and system configurations SQL Server SQL Server 2PHONE_NUMBER, Always On AG or FCI, performance tuning, T-SQL, backup/restore, SSMS IIS / Windows IIS 8.5+, .NET application hosting, app pool management, SSL configuration, Windows Server 2016+ Linux Ubuntu / Red Hat / CentOS server administration, shell scripting, service management Experience 3 5+ years in a Senior Sysadmin or Infrastructure Engineer role in a production environment Desired Candidate Profile Company Industry IT - Software Services Department / Functional Area System AdministrationNetwork AdministrationSecurity (IT Software) Keywords Senior Systems Administraror Get real-time job updates only on our App