Diogo D.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 Jul 17, 2026.

✅ PCI/DSS Payment Cards | ISO 27001 | ISO 22301 ✅ Expert DevOps & Platform Engineer ✅ Expert AWS & Azure Cloud Architect ✅ Expert System Administrator ✅ Expert Network Administrator ✅ Expert Security Administrator ✅ Expert Monitoring Administrator ✅ IT Management Consultant During my 15-year professional career in Information Technology, I have been in roles such as Head of IT, IT Manager, Security Administrator, System Administrator, Network Administrator, DevOps Administrator. As an Infrastructure Engineer and IT Manager, I have proven experience in deploying and managing technology solutions for a wide variety of business needs. My goal in freelancing is to allow me to explore and utilize technologies that would not otherwise be available to me with a single employer. I have a hunger to learn and stay sharp. I have professional experience with Microsoft MSFT (AD|DNS|DHCP|WDS|DFS|GPO|CA), managing virtual environments (Hyper-V|VMWare) and cloud environments (Azure|Amazon AWS), managing Storage Solutions (DELL md3200i|HP MSA|DELL Compellent|Qnap|Synology), managing Microsoft and Linux servers (Server 2003|2008|2012|2016|2019|CentOS|Fedora|Suse|OpenSuse|Ubuntu), managing web services (IIS|Apache), managing mail servers (Exchange 2003|2010|2013|2016|Office365|Postfix|Zimbra), managing monitoring systems (SCOM|Zenoss|Zabbix|Cactis), managing backup systems (Backup Exec|SCDPM|VEEAM|ArcserveUDP), managing database systems (SQL Server|MySQL), managing disaster recovery and high availability environments (Failover Cluster|NLB), managing switching (NORTEL|ENTERASYS|CISCO|EXTREME|HP|Aruba), managing firewall security systems (Checkpoint|Sophos|PFSense|Sonicwall), managing office 365 (On-premise Exchange to Office 365 Migration|AD Syncronization Services|Azure AD|Teams), and managing massive email marketing (DKIM|DMARK|DNSSEC|POSTFIX|BLACKLIST Validation|SPF Records|Header Validation|Domain Score), and Information Security Manager | Cyber Security (Kali Linux|Burp Suite|Nmap|Metasploit|Wireshark|OpenVas), and DevOps administrator (Docker/Docker Compose/Swarm/Kubernetes/Ansible/Terraform/Packer/Helm) I enjoy working with new people and taking on new challenges. I'm no stranger to sticky situations and am confident under pressure. If the work requires a steady hand with high stakes I feel right at home. If an organization’s needs align with my skill set, experience, and availability, I am confident that I will be a valuable asset to their team to deliver timely and effective solutions.