Hire Ustym Kushnir
Nine disciplines, one engineer. Every one backed by projects running in production right now, not by a certification. Pick the one closest to your problem — or send a brief and I will tell you which it actually is.
Full-Stack Developer
One person who owns the whole thing — database schema, API, frontend, deployment, and the production incident at 2am. No handoffs between a backend contractor and a frontend contractor who blame each other when something breaks.
AI Engineer
Not a prompt consultant. An engineer who puts an LLM inside a process that already runs money through it — with cost routing, grounding, guardrails, escalation to humans, and a test suite that catches regressions before customers do.
Blockchain Developer
Contracts that shipped to mainnet and held real value — not a tutorial fork with the variable names changed. Vetra, a USD-backed stablecoin on Polygon with Chainlink Functions verifying reserves in real time, is the reference.
Security Engineer
When a production server is owned, the clock matters more than the credential. I do the full incident response workflow — evidence-preserving triage, eradication, credential rotation, patching (including hand-written patches when the vendor fix has not shipped), and hardening that makes round two expensive.
Business Automation Engineer
Not a Zapier consultant. An engineer who replaces the spreadsheet, the WhatsApp group and the clipboard with software the team stops having to think about — written in code you own, on infrastructure you control, with no per-execution billing.
Fintech Developer
The money layer, built with the paranoia it deserves. Signed webhooks, idempotent handlers, integer minor units, append-only ledgers, row-level locks. The boring rules that prevent the entire class of "the numbers do not add up" tickets.
WhatsApp API Developer
Official WhatsApp Business Cloud API via a Meta-approved BSP. Not Baileys, not Evolution, not a QR-scanning wrapper that gets the client's number banned in a week. The integration that survives contact with a real business.
Industrial Automation & IoT Engineer
Sensors are cheap now. The expensive part is turning a telemetry firehose into an alert that reaches the right person before the damage is done — and not one alert per reading, which trains everyone to ignore them.
Booking System Developer
The booking engine your business actually runs on — owned outright, not rented per seat. Real-time calendar sync, WhatsApp reminders in your voice, payments into your own account, and a cancellation queue that refills the slot before the front desk even notices.
Not sure which one?
Send a written description of what the business is losing today. I come back with which role this actually is and a concrete plan against it.
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