budiak·
Independent Security Architect / Critical Infrastructure / Calgary

I won’t tell you
you’re safe.

I’ll tell you where you stand — exactly — and what it takes to stand firmer.

Serhii Budiak at the keyboard
Serhii Budiak Calgary AB / Critical infrastructure / since 1990

I’m Serhii Budiak, an independent security architect. Fixed-fee audits, fractional CISO, and second opinions for teams that have to pass a real one. And I build the tools I recommend — not slideware.

get in touch Two sentences about where you’re stuck is enough. A person reads it, a person answers — usually the same day.
/   On the record

Where I’ve stood.

Kyiv · 2014–2022 Eight years holding a capital city’s network together — through blackouts, annexation, and a war that ran no change windows.
US Health-Tech · 2023–24 Architected a health-tech startup’s platform to clear the security bar of two top-five US hospital networks — its own customers, doing the auditing. Passed every review.
Ukraine · Tax authority Designed a geo-distributed architecture split across multiple data centres — built to keep a national system standing when a single site doesn’t.
Croatia · Backbone telecom Helped rebuild the internal IT of a tier-1 carrier and took it through an ISO 27001 audit — on the operator side, not the paperwork side.
/   Who I work with

Where I’m the right call.

Healthcare & health-tech HIPAA, HITRUST, or SOC 2 — with a customer or an auditor already waiting on it.
Government & public sector Networks that grew flat over the years and now have to be defensible.
Regulated mid-market A company that needs a CISO’s judgment and signature, not a CISO’s salary.

And a few I turn down on purpose — box-ticking policies, help-desk-humiliating phishing drills, vendor commissions, softened findings. The full list is on the services page →