Mahammad Rafiq Shaik
Senior Engineer
Summary
Dedicated and detail-oriented IT professional with over 5 years of experience in system administration, cloud infrastructure, and enterprise IT services, seeking a challenging role to leverage my expertise in Linux/Windows administration, Microsoft 365 and Azure platforms. Passionate about driving operational excellence through automation, secure infrastructure management, and continuous service improvement. Committed to contributing to organizational success by delivering robust, scalable, and cost-effective IT solutions.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Senior Engineer
OpsMaven Services Private Limited
02.2024 - Current
- Linux, Windows, Microsoft M365, Azure (AZ-104 Certified) & VMware Administration
- Administered Microsoft 365: user provisioning, mailbox management, SharePoint, Teams, Exchange Online, Intune
- Implemented Azure AD Conditional Access, MFA, RBAC, NSGs for security compliance
- Automated audit tasks with PowerShell, reducing manual workload by 30%
- Configured secure Azure networking: site-to-site VPNs, VNet peering, Azure Firewall
- Provisioned/managed Azure resources: VMs, VNets, storage accounts, resource groups
- Monitored performance with Azure Monitor, Log Analytics, alerting tools
- Administered Linux servers (Ubuntu, CentOS, AlmaLinux): systems admin, Bash scripting, automation
- Managed VMware ESXi/vCenter for enterprise virtualization and infrastructure
- Monitored/managed email flows, spam filters, mailbox policies, retention settings
- SSL implementaion/Configuration like Certbot, Win-acme..
- Hosting provider management like Godaddy, namecheap
- Provided L2/L3 support for O365, resolving complex authentication issues
Engineer-2
Kensium Solutions Pvt Ltd
10.2020 - 01.2024
- Install, configure, and maintain Windows Server (2016/2019) and Linux (RHEL, Ubuntu) operating systems.
- Administered RHEL, Ubuntu, and CentOS servers in production environments supporting enterprise applications.
- Performed user/group management, permission control, and sudo policy configuration.
- Installed and configured web/application stack components (Apache, Nginx, MySQL, PHP).
- Managed disk partitioning, LVM configuration, mounting, and filesystem troubleshooting.
- Configured SSH access control, firewall rules (firewalld/iptables).
- Managed SSL certificate installation and renewal for secure services.
- Manage Active Directory, Group Policy, DNS, DHCP, and file server infrastructure.
- Schedule and perform system backups, patch management, and disaster recovery operations.
- Troubleshoot OS, hardware, and software issues, ensuring high availability and stability.
- Configure Linux services including SSH, Samba, NFS, cron jobs, and system permissions.
- Enabling IIS, Installing Software, managing users& Groups
- Manage Level 2 and Level 3 support tickets via platforms like Jira, Zoho Desk, OTRS, ServiceNow, Freshdesk, or Jira Service Management.
- Collaborate with internal teams and vendors to resolve complex system and application issues.
- Administer backup solutions such as Veeam, Azure Backup, and native OS tools.
- Enforce mobile device policies via Microsoft Intune and Endpoint Manager.
- Generate reports and provide recommendations for efficient resource utilisation.
- Work with DevOps, QA, HR, and Development teams to implement infrastructure changes and projects.
- Participate in change management processes, ensuring compliance with SLAs and policies.
- Conduct training sessions and develop documentation to support team knowledge growth.
Education
Bachelor of Technology - Mechanical Engineering
JNTUA
03-2017
Skills
- Proficient in Linux (RHEL, Ubuntu) and Windows Server administration
- Certified Microsoft Azure Administrator (AZ-104); skilled in managing Azure IaaS & PaaS services
- Experienced with Office 365 Admin Center: Exchange Online, Teams, SharePoint, and Intune
- Strong background in virtualization using VMware ESXi/vCenter
- Skilled in infrastructure setup, deployment, and automation using ARM templates, PowerShell, and Bash
- Hands-on with Active Directory, DNS, DHCP, Group Policies, and identity & access management
- Expertise in application installation, configuration, troubleshooting across environments
- Familiar with Azure networking (VNet, NSG, VPN)
- Involved in backup policy creation, snapshot/disk management, replication strategies
- Experience in production support, incident management, RCA documentation, and patching
Certification
Microsoft Certified: Azure Administrator Associate (AZ-104)
Timeline
Senior Engineer
OpsMaven Services Private Limited
02.2024 - Current
Engineer-2
Kensium Solutions Pvt Ltd
10.2020 - 01.2024
Bachelor of Technology - Mechanical Engineering
JNTUA