CF CASE FILES · DECLASSIFIED

Real engagements. Real numbers. Real receipts.

No anonymized "Fortune 500 client achieves synergy." These are anonymized for legal reasons — the systems, the failures, and the numbers are exactly what happened. Read what was broken, what we did, and what came out the other side.

1case files published
100%production-tested
0breaches post-engagement
1,042 TPS sustained
CPaaS · 7-day mean
0 incidents post-launch
across all engagements
THE OPEN FILE

Featured case file.

CPaaS & Messaging

Building MsgHub — engineering a CPaaS for 1,000 TPS from day zero

We built MsgHub ourselves. Here are the engineering decisions behind tenant isolation, SMPP pooling, and the durable DLR pipeline — what we tried first, what we threw out, and why we settled where we did.

1,000+TPS sustained
99.99%uptime target
14 mobuild to prod
5vendor integrations
Read the full case file
OTHER FILES

More writeups — what else we've fixed.

SOON

More writeups, on the way out of legal.

We publish one case file per engagement we're cleared to discuss. Fintech, MedTech, and SaaS platform writeups are queued for redaction review — check back, or follow field notes for what we ship in between.

— YOUR STACK NEXT

Production going flaky, tenants leaking, or deploys turning into weekly scares?

If your system is doing any of the things in these writeups, we've broken it before. We can take it from scary to boring in weeks, not quarters.

Book a conversation
— WHAT YOU GET ON THE FIRST CALL
  • A scoped read on whether we can actually help (or who can)
  • Three concrete failure modes we'd hunt first
  • A rough engagement shape — duration, team, cost band
  • No "discovery deck", no SDR follow-ups