Juan R Hernandez

I’m a Systems Administrator with 9+ years of IT experience, including 6 years in the banking sector. I specialize in server administration, Fortinet network infrastructure, and database management across SQL Server and PostgreSQL, with a strong focus on reliable production support.

In my current role, I administer servers and network infrastructure for ~100 users and maintain Fortinet appliances (firewall/VPN). I handle internal technical support (~200 tickets/month) and manage SQL Server and PostgreSQL work like queries, transactions, and data integrity—also consolidating 4 production databases into a Docker environment with a verified backup strategy.

When critical failures happen, I take ownership of recovery. I’ve performed full environment recovery after a critical OS failure, rescuing 241 GB of data and restoring services with zero data loss across SQL Server databases and repositories.

Previously, at Banco del País (Banpaís), I supported ~500 internal users in a regulated banking environment as Tier 1/2 support. I processed ~600 hardware/software/network incidents per month and completed preventive and corrective maintenance, while also building automation and custom solutions—now including AI-assisted development workflows for end-to-end design, database modeling, deployment, and operation.