Javier B.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.

Extensive experience in computer systems, supporting both PCs and Macs, with a strong foundation in Windows environments dating back to early versions. Certified as a Microsoft Certified Professional and previously served as a Microsoft Ambassador for Windows, Surface, and Microsoft 365, specializing in advanced troubleshooting techniques. Skilled in user onboarding and offboarding across various platforms, managing access provisioning and deprovisioning for both cloud-based and on-premise applications. Proficient in Windows Server support, Exchange, SharePoint, and Microsoft 365—including Azure Active Directory, Teams, Outlook (desktop and OWA), OneDrive, Planner, and Flow. Hands-on experience with administrative tasks in Azure, including security and compliance settings such as Threat Management, Data Loss Prevention, Information Governance, ATP (Anti-Phishing, Anti-Spam, Anti-Malware), DKIM, DMARC, and more. Strong knowledge of network infrastructure and security tools, including Fortinet appliances, routers, switches, Ruckus, Cisco Meraki, and VPN protocols like GRE and IPSec. Familiar with Linux systems, database management, and cloud monitoring tools. Skilled in packet capture and traffic analysis using Wireshark, Fiddler, and browser header tracing tools. Additional experience with Okta, Odoo, Active Directory, local and virtual servers, and various CRMs. Proficient in EMR platforms such as Sunwave and Sfax, as well as SaaS management tools like IT Glue. Highly detail-oriented and capable of working independently with minimal supervision. Strong communicator, able to collaborate effectively with users, customers, vendors, and IT teams both internally and externally.