Abhay Kumar

Cloud & Virtualization Management: Managing Ciena R&D cloud environments (AWS, Azure), OpenStack, and private cloud. Provisioning and migrating VMs across Proxmox, VMware, XCP-NG, and KVM. End-to-end infrastructure governance from compute to virtualization. Server & Directory Services: Administering Linux/Windows servers, LDAP, Active Directory, DNS, DHCP, and LVM. Networking & Security: Expertise in TCP/IP, routing, VLANs, VPN, and firewall configurations; Implementing patch management and vulnerability remediation. Ensuring compliance and security standards across hybrid environments. Automation & DevOps: Building CI/CD pipelines using Jenkins and Azure DevOps Infrastructure automation with Ansible, Terraform, Kickstart. Container orchestration with Docker and OpenShift. Backup & Disaster Recovery: Managing backup and replication strategies for on-prem and cloud environments. Designing high-availability and failover solutions for critical workloads. Monitoring & Performance Optimization: Implementing proactive monitoring and alerting for 24/7 enterprise data centres. Capacity planning and performance tuning for large-scale architectures. Tools & Scripting: Proficient in Git, Jira, Bitbucket, Confluence for collaboration and version control. Advanced scripting in Bash, Python, PowerShell for automation and troubleshooting. Hardware & Remote Management: Managing iDRAC (Dell), iLO (HP) for remote server administration. Supporting physical infrastructure lifecycle from deployment to decommissioning. Documentation & User Support: Creating technical documentation, user guides, and SOPs for infrastructure operations. Providing Tier-3 support and root cause analysis for complex issues.

Managed over 1 lakh Linux servers across Cloud, On-Prem, and Hybrid environments, ensuring 99.9% uptime through proactive maintenance, automation, and monitoring. Expertise in ServiceNow to manage Incidents, Service TASKs, and Change TASKs from user requests and Splunk alerts, resolving issues promptly and maintaining SLA compliance. Streamlined server operations using Puppet and Ansible for configuration management and automation, ensuring efficiency and consistency. Proficient in VMware and Cloud PC management, including AWS Connect services, to optimize cloud infrastructure and virtual environments. Experienced with Red Hat, Ubuntu, and AIX servers, providing comprehensive support, maintenance, and troubleshooting in diverse operating systems. Delivered 24x7 support, collaborating with customers to ensure uninterrupted operations and quick resolution of critical issues.

Cloud Administrator and Linux Administrator at Tata Consultancy Services, managing over 500 Linux servers across Cloud, On-Prem, and Hybrid environments while maintaining 100% SLA compliance. Proficient in cloud technologies, including AWS, Azure, Digital Ocean, Citrix, Hyper-V, VMware, and Windows Server, optimizing infrastructure performance, scalability, and cost-efficiency. Skilled in configuring and managing SMTP, DNS, and Squid Proxy for seamless communication and secure access across complex networks. Expert in setting up and maintaining multiple infrastructures, including VMs, PR/DR, and firewalls for S2S/C2S connections, ensuring high availability and disaster recovery. Implemented and automated critical tasks using Bash and Python scripting, resulting in a 60% reduction in manual interventions and human errors. Enhanced infrastructure stability by engineering robust disaster recovery and backup solutions, ensuring 99.9% uptime and achieving a 50% reduction in RTOs. Optimized storage management using Logical Volume Management (LVM), resulting in a 20% reduction in storage overhead and improved system performance. Led troubleshooting and issue resolution across Red Hat, Ubuntu, and AIX servers, utilizing automation to enhance operational efficiency and reduce incident response time by 30%. Collaborated with cross-functional teams and customers to design and implement scalable, secure, and cost-effective architectures, ensuring continuous innovation and operational excellence. Delivered 24x7 support for cloud infrastructure and virtual environments, ensuring quick resolution of critical issues and minimizing system downtime.