Work Experience

Geek Squad is Best Buy’s Tier-1 technology services organization and the largest electronics repair provider in North America, operating across 1,000+ locations. ● Installed, upgraded, and replaced computer hardware components, performing in-depth diagnostics to identify faulty parts and restore system performance across desktops and laptops. ● Troubleshot and resolved application and OS-level issues across Windows, macOS, and ChromeOS, ensuring system stability and compatibility in multi-OS environments. ● Diagnosed and resolved network connectivity issues, including LAN/Wi-Fi configuration problems, DNS/DHCP-related failures, and performance bottlenecks. ● Supported and troubleshot Microsoft 365, and Outlook, addressing account access, synchronization, configuration, and application-level issues. ● Implemented security remediation solutions for compromised accounts and systems, including malware and spyware removal, system hardening, and security best-practice enforcement. ● Assisted users with cloud storage solutions including OneDrive, Google Drive, iCloud, and Dropbox, ensuring data accessibility and minimizing data loss. ● Set up new systems for clients, including user account creation, email configuration, data migration, system cloning for legacy applications, and data recovery from failed storage devices.

The organization operates a large-scale enterprise data center supporting core banking applications, ATM infrastructure, and internal development environments. The environment required high availability, strict operational standards, and secure virtualization infrastructure to support mission-critical financial systems. ● Monitored and managed virtual machines for the bank’s programming and development department using VMware vSphere, ESXi 6.5, and vCenter, applying enterprise virtualization best practices aligned with VCP/VCAP architecture. ● Provisioned, optimized, and maintained VM lifecycles including templates, snapshots, resource allocation, and performance tuning within clustered VMware environments. ● Managed departmental VMware vSAN infrastructure, including storage policies, health monitoring, capacity management, and performance optimization. ● Monitored and maintained VMware High Availability (HA) and Fault Tolerance (FT) configurations across clustered hosts, proactively validating failover readiness, host health, and redundancy mechanisms to ensure continuous availability of critical development systems. ● Operated and supported a custom server-based application responsible for monitoring nationwide ATM log activity, proactively identifying system anomalies, debugging application issues, and ensuring operational continuity. ● Utilized Terraform for infrastructure configuration, implementing state locking after software configuration to prevent concurrent changes, maintain environment consistency, and ensure reliable infrastructure provisioning. ● Administered Active Directory services and managed Single Sign-On (SSO) access for development teams, including account provisioning, group policy management, and secure authentication workflows. ● Managed and validated Disaster Recovery (DR) operations using Veeam Backup & Replication, including backup verification, job schedule monitoring, and restore testing to ensure data integrity and business continuity.

Delivered private VPN services for closed user groups by designing, deploying, and maintaining secure Linux-based VPN infrastructure. Focused on high availability, traffic stability, and secure remote connectivity for mobile and multi-device users. ● Deployed and administered OpenVPN, L2TP, and PPTP services on CentOS/Debian Linux servers, providing secure and reliable remote access for client devices. ● Maintained high availability and near-zero downtime through proactive system administration, service monitoring, patching, and configuration optimization. ● Monitored system load and network traffic using tools such as top, htop, iftop, and vnStat, and optimized performance using iptables, routing rules, and basic load distribution across services where applicable. ● Managed VPN user accounts, credentials, and access policies, including account provisioning, expiration, and revocation, using Linux user management, scripts, and service-level configuration controls. ● Troubleshot client connectivity issues through network debugging and log analysis, utilizing tools such as tcpdump, netstat/ss, journalctl, and OpenVPN logs to diagnose authentication, routing, and firewall-related problems.