Independent advisory · Chicago, IL · est. 2026

Engineering rigor for the fabric that runs your business — and your home.

DDCA works directly with owners, operators, and integrators on data centers, fiber-optic infrastructure, AI compute build-outs, home & small-business networks, and Home Assistant automation. Blunt, written assessments. No commissions. One principal on every engagement.

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Practice

Five interlocking domains.

From the AI hall to the riser closet to the small-business LAN and the smart home — the same engineering discipline, applied to whichever layer is yours.

Data Centers

Facility selection, in-rack design, redundancy, cooling, BOM review, RFPs.

  • Colo
  • Edge
  • Migrations

Fiber Optics

SAN fabric design, structured cabling, OSP routes, ISL sizing, single- & multi-mode.

  • Brocade
  • Cisco MDS
  • DWDM

AI Data Centers

GPU hall planning, liquid-cooling readiness, high-density power, east-west fabric.

  • H100/B200
  • InfiniBand
  • 400/800G

Networks & WiFi

Home & small-business LANs, WiFi 6E/7 design, segmentation, and remote-work resilience.

  • UniFi
  • WiFi 6E/7
  • VLANs

Home Assistant

Self-hosted Home Assistant, lighting, climate, AV, access — resilient, private, local.

  • Home Assistant
  • Lutron
  • Zigbee/Z-Wave

About

One principal. End-to-end engagement.

DDCA is the practice of Pete Diamantis, a Chicago-based engineer with a long career across data center operations, enterprise storage, fiber-optic infrastructure, and high-end home automation. Every engagement is delivered personally — no junior bench, no off-shore back office, and no commissions from the vendors we evaluate.

More about the practice
Coverage
US & EMEA · remote-first
Engagements
Hourly · fixed-fee · retainer
Principal
Pete Diamantis

Next step

Book a 20-minute call.

Most engagements start with a quick scoping call. No commitment, no slide deck — just a direct conversation about what you're trying to figure out.

Book a meeting Call (773) 455-3322