Professional Experience

Operation, support and evolution of Linux/Windows infrastructure, hosting, virtualization, monitoring, DNS, email, backups and troubleshooting in production environments.

• Administration and troubleshooting of Linux/AlmaLinux and Windows Server environments.
• Support for HTTPD, Nginx, Postfix, Qmail, MySQL, iptables/firewall, IIS, MSSQL, MailEnable and SpamTitan services.
• Hosting, DNS, email and website operations through Plesk.
• Virtualization support with VMware vSphere, Proxmox, ESXi and vCenter.
• Backups and restores with Veeam.
• Monitoring with PRTG, BitNinja, PMM, Grafana and observability tools.
• DNS/IP management with PHP IPAM.
• Incident diagnosis across servers, networks, email, permissions, ports, databases and web services.
• Technical documentation, incident escalation and continuous improvement.
• Deployment and operation of internal services with Docker, Docker Compose and reverse proxies.
• Validation workflows using curl, logs, metrics and health checks.

Design and construction of internal platforms focused on SaaS, enterprise messaging, APIs, automation, observability and container-based operations.

• Design of a multi-instance WhatsApp API oriented to SaaS.
• Integration with Chatwoot and enterprise messaging workflows.
• Construction of QA/Admin Console for diagnostics and operational testing.
• Design of a Social Gateway for Meta/Facebook/Instagram APIs.
• Use of PostgreSQL, Redis, BullMQ, workers and webhooks.
• Deployment of services behind Traefik with TLS and internal networks.
• Observability with Grafana, Prometheus, Loki and Promtail.
• Automation of technical processes and operational documentation.

Technical support and implementation of networking, connectivity, CCTV, IP systems, WiFi, hardware/software and technology operations for clients, SMBs and hospitality environments.

• Installation and support of WiFi networks, access points and internet equipment.
• Installation of CCTV, alarms, IP systems and smart home solutions.
• Preventive and corrective maintenance for hardware and software.
• Support for operational devices, POS systems and reception equipment.
• Connectivity, cabling, networking equipment and endpoint troubleshooting.
• Customer support, basic documentation and technical incident resolution.

Operation, analysis and progressive modernization of systems where availability, latency, connectivity, processes and failure recovery directly impact the business.

• Analysis of SPOFs, bottlenecks and critical operational points.
• Evaluation of stateful vs stateless workloads.
• Progressive migration of legacy services into containers and Kubernetes/K3s.
• Diagnosis of process saturation, concurrent connections and intermittent failures.
• Review of logs, metrics, alerts and health checks.
• Design of rollback, backup and failure recovery strategies.
• Prioritization of stability over unnecessary complexity.