Infrastructure / Cloud & Security Engineering

Infrastructure & Cloud Security

Cloud, networking, identity, email security, endpoint management

Ferdinand designs, builds and maintains the infrastructure that organizations depend on — cloud environments, physical networks, identity platforms, email security and endpoint management. The work spans healthcare, legal and business operations, with a consistent emphasis on reliability, recoverability and HIPAA-aligned controls where required.

AWSUniFi UDM SESonicWallMicrosoft 365Google WorkspaceHexnode MDMSPF / DKIM / DMARCVPNBackup & RecoveryNetwork SegmentationEndpoint ManagementBusiness Continuity

Overview

Infrastructure work is rarely visible when it is done well — the network stays up, email delivers, devices stay enrolled, backups run and recoveries succeed. Ferdinand's infrastructure practice covers five domains: cloud and continuity, networking, identity and collaboration, email security, and endpoint management. The scenarios below are drawn from real engagements, anonymized to protect client confidentiality. No IP addresses, customer domains, firewall exports or security configurations are published.

All scenarios are anonymized. No client names, IP addresses, customer domains, firewall rule exports, network diagrams with identifying information, or security configurations are published. Environment diagrams use generic topology representations only.

Anonymized Environment Topology

Generic representation of the infrastructure layers Ferdinand designs and manages. No client-specific addresses, domains or configurations are shown.

Cloud Layer

AWS VPC

EC2 · S3 · IAM

Backup Target

Offsite replication

Continuity

Failover · RTO

Network Layer

Perimeter FW

SonicWall · policy

LAN / WLAN

UniFi UDM SE · VLANs

VPN Gateway

Remote access · site-to-site

Identity & Collaboration

Directory

Entra ID · MFA

Email Platform

M365 · Google Workspace

File Storage

SharePoint · Drive

Endpoint Layer

Workstations

Policy · patch mgmt

Mobile Devices

Hexnode MDM · profiles

Email Auth

SPF · DKIM · DMARC

Infrastructure Scenarios

Select a domain to expand scenarios. Each scenario shows the situation, the work done and the outcome.

Infrastructure Engagement

Need cloud architecture, network design, email security or endpoint management for a healthcare or business environment? Ferdinand has built and maintained these systems across more than 15 years of direct engagement.