John D.

Expert-Vetted on Upwork (top 1%), 190+ engagements. Clients span private equity and VC firms, family offices, HNWIs and businesses from small shops to enterprises. - Strategy & roadmap — assess where you are, decide the right stack, own the plan to get there - Cybersecurity consulting — Zero Trust access, threat protection, security architecture, and hardening across your stack - Email security & deliverability — DMARC, BIMI, MTA-STS, anti-spoofing, Microsoft 365 & Google Workspace - DevOps & automation — CI/CD, infrastructure, and workflow automation - AI integration — practical AI and agent workflows built into how your business runs - Network & cloud engineering — Cisco Meraki (VLANs, segmentation, full builds), cloud infrastructure, backup & disaster recovery Certifications: Cisco CCNA & Meraki (CMNO/ECMS2) · Zscaler ZTCA · Proofpoint (Email Auth, Security Awareness, Ransomware) · Klaviyo Deliverability · EasyDMARC · Google Cloud · JAMF · MBA + B.S. Accounting