Systems
Systems, networks & security
Windows Server, networking and VPNs day to day at Nattia, plus a security model with granular access control, auditing and authentication controls designed for a confidential project.
I administer and maintain servers, networks and equipment as a regular part of my work at Nattia: Windows Server, virtual machines and Linux environments, building full server racks (switches, firewalls), managing ports, mail services and DNS, designing VPNs, and administering Microsoft 365, Entra ID and Google Workspace.
Security model of a confidential project
At a current project, as the sole technical lead, I design the entire security model: granular role/permission-based access control, action auditing, and protection/anonymization of sensitive information, with authentication controls, perimeter protection, and failure continuity — including the backup and recovery processes.
Application in my own projects
In my own projects I apply service separation, access control, input validation, monitoring, and recovery. The goal is for security to be part of the design and the operation, not something added only at the end.
Systems auditing
At Nattia I also run audits on legacy databases for clients running older systems, including finding and fixing insecure configurations.