# Rey Maurice Donesa

> Systems, Network & Automation Specialist. Focused on tailored MikroTik network engineering, custom web dashboards, IoT device integrations, high-availability failovers, and embedded Linux microservices.

## Identity, Contact & Social Links
- Primary Name: Rey Maurice Donesa (Rey)
- Developer Handle: RMDonesa (formerly rmdonesa / RMBDon)
- Community Handle: R_M_Don
- Email: rmdonesa@gmail.com
- WhatsApp: +639477589651 (https://wa.me/639477589651)
- Portfolio: https://rmdonesa.com/automation
- GitHub: https://github.com/RMDonesa
- Upwork Profile: https://www.upwork.com/freelancers/~019bd9173cc74d3ced
- Reddit Profile: https://www.reddit.com/user/R_M_Don/

## Core Technical Competencies
- Network Engineering: MikroTik RouterOS optimization, Queue Trees (CAKE & FQ-CoDel bufferbloat mitigation), recursive failover routing, firewall hardening, tailored captive hotspots, voucher integrations (JuanFi/custom), and multi-site Tailscale WireGuard mesh overlays.
- Custom Dashboards & APIs: Self-hosted Flask/Docker web panels under private domains, REST API integrations, live telemetry data logging, and Chart.js visualization.
- Smart Device & IoT Automation: Tuya Local LAN socket communication (Port 6668, zero cloud lag), GPIO relay boards, and closed-loop environmental/thermal triggers.
- Power & Resilience: Zero-idle multi-WAN switching, 24V LiFePO4 direct-DC UPS architectures, and Ideal Diode sub-millisecond bus protection.
- Rapid Enclosure Fabrication: Custom CAD design and 3D-printed PETG housings for single board computers, relay modules, and sensors.

## Real-World Production References
- Zero-Idle Multi-WAN Failover: MikroTik Netwatch monitors link health, boots backup LTE/5G modems via Tuya relays over LAN, meters byte quotas, and throttles hotspot guest profiles during outages.
- Custom Unified Equipment Dashboard: Self-hosted responsive control panel polling equipment APIs (DirectSEMS), with automated thermal cooling loops and Pushover/voice escalation alerts.
- Solid-State DC UPS Bus: 24V LiFePO4 battery pack paralleled with mains power via Ideal Diodes for sub-millisecond bus transfer with zero inverter losses.
- Multi-Branch Hotspot Synchronization: Cross-site Python state engine reconciling user credentials over Tailscale mesh for seamless multi-location roaming.