Pablo F.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I am an experienced System Administrator, DevOps Engineer, and Blockchain Engineer with a strong background in server setup, maintenance, networking, security, backup & recovery, monitoring, performance optimization, troubleshooting, and automation. I work daily with the latest open-source technologies across various Linux distributions and cloud environments, ensuring high availability, scalability, and security for mission-critical systems. Core Expertise: • Blockchain Engineering: Design, deployment, and maintenance of blockchain nodes, validators, and supporting infrastructure. Optimization, monitoring, and security hardening of blockchain-related services. • DevOps: Automation with Ansible, CI/CD pipelines, infrastructure as code, and container orchestration. • Cloud: Google Cloud Platform (GCP) infrastructure design, deployment, and optimization. • Version Control: Git workflows and repository management (GitHub). • Linux Distributions: Debian, Ubuntu, Red Hat, Clear Linux. • Network Services: DNS, HTTP, VPN (OpenVPN), Nginx, DHCP, Samba. • Networking: IP tools, routing, firewalls. • Scripting & Automation: Bash, Zsh, Python. • Virtualization & Clustering: Kubernetes, LXD/LXC, Docker. Certifications: • LPIC-2 Certified Linux Engineer I specialize in delivering secure, high-performance, and reliable infrastructure solutions for businesses, with a proven track record in blockchain infrastructure management and open-source systems administration.