Mughees A.

⭐️ Top Rated Freelance MySQL and PostgreSQL DBA & Linux Server Expert ✅ 8+ years of hands-on experience with MySQL and PostgreSQL, Replication, High Availability & Cloud Migrations ✅ Expert in Performance Tuning, Disaster Recovery & Database Automation ✅ Proven track record across critical production systems with minimal downtime Hi there! I’m a Senior MySQL and PostgreSQL Database Administrator and Linux Server Specialist with over 8 years of experience architecting, optimizing, and managing large-scale database infrastructures for high-availability environments. With deep expertise in PostgreSQL(12-16) and MySQL (5.6, 5.7, 8.0), Percona, Galera Cluster, InnoDB Cluster, and Amazon RDS/Aurora, I provide end-to-end database solutions—from installation and upgrades to failover automation and disaster recovery. Having handled TB-sized datasets and complex cloud migrations (AWS EC2 & RDS), my focus is always on ensuring performance, security, scalability, and zero-downtime delivery. I'm known for solving critical production issues fast, creating robust backup and recovery strategies, and implementing intelligent replication topologies tailored to client needs. Although I'm new to Upwork, I'm top-rated on another freelance platform and an active contributor to the tech community through my YouTube content, public speaking, and collaboration on open-source tools. Here’s what I bring to the table: ✅ MySQL/MariaDB/Percona DBA: • Installation, upgrade, and performance tuning of MySQL in Linux environments • Minor and major upgrades (5.6 → 5.7 → 8.0) including AWS RDS upgrades • Backup & recovery scripting using XtraBackup, MyDumper, MySQLBinlog • Automated replication setup (Master-Master, Master-Slave, GTID) • Galera Cluster, PXC, and InnoDB Cluster deployments (including ClusterSet for DR) • Orchestrator configuration for failover, topology visualization & HA • ProxySQL setup for intelligent load balancing and read-write splitting ✅ Cloud & High Availability: • Migration of databases to AWS EC2 and RDS with near-zero downtime • Aurora upgrades via snapshots, backup/restore, and blue-green deployments • DR/HA solutions designed for production-grade stability • Shell scripting and automation for backups, monitoring, and scaling ✅ Monitoring & Support: • Setup of Percona Monitoring and Management (PMM) • Proactive health checks and incident management • On-call experience handling crashes, replication issues, performance bottlenecks ⭐️ Accomplishments & Recognition: • Successfully dropped multi-TB tables using the hardlink method • Implemented seamless server migrations with zero app downtime • Managed high-pressure production incidents with composure and speed • Built training content for the MySQL community on YouTube • Regularly speak at tech events and share knowledge with peers If you’re looking for a hands-on MySQL/Linux engineer who takes ownership, solves problems fast, and genuinely cares about your system's health and uptime—let’s connect. I’d love to be your go-to database partner on Upwork!