DFIELDSOLUTIONS

The proprietor

MeetDezso

AI and GenAI engineer, Purple Team security, full-stack EVM and Solana, and the person who answers the phone.

Dezső Mező
What clients say
5.0
“From LinkedIn DM to live site. Two tiny tweaks, then shipped.”
Cleanest developer hand-off he has had

Dezso Mezo runs DField Solutions from Dunakeszi, just north of Budapest, and works with clients anywhere. He builds with PyTorch, LangChain and MCP on the AI side, Solidity and Anchor on chain, and Next.js, FastAPI and Postgres for everything else.

Purple Team means he runs the attack and then closes the gap. Most agencies only do one half.

He likes shipping, the occasional CTF, and starting things.

dezso@dfieldsolutions.com · linkedin.com/in/dezsomezo

What you get when you hire the studio

You talk to the engineer
No account manager, no offshore hand-off. The person on the call is the person writing the code, so decisions take minutes and nothing is lost in translation.
Quick wins in the first two weeks
Speed fixes, the first automation, the security basics — live before the engagement is half done, so you see it working rather than hearing about it.
You own everything
Source, credentials, documentation, the n8n instance — handed over at the end. No lock-in, no retainer you did not ask for.
Built AI-native and AI-secure
The same person who builds the agent also breaks it: prompt-injection testing, tool-permission review and an audit log are part of the build, not an add-on.

The record

case studies
23
under NDA
21
countries
12
6 verified reviews
5.0

Clients and products

  • GeekCorner
  • Vilya Protection
  • Noaber AI
  • JairePrint
  • Use AI Easily
  • North Star Creator
  • AutoImport
  • Tippsziget
  • Jerzso Music
  • Creator Community
  • UseAIEasily
  • JuriSafe
  • SimulSpeak
  • AI Chatbot Maker

Where the work went

AustriaGermanySpainFranceUnited KingdomHungaryItalyMaltaMexicoNetherlandsPortugalUnited States

work shippedHQ · Dunakeszi

  • Austria
  • Germany
  • Spain
  • France
  • United Kingdom
  • Hungary
  • Italy
  • Malta
  • Mexico
  • Netherlands
  • Portugal
  • United States

What clients say

  • From LinkedIn DM to live site. Two tiny tweaks, then shipped.

    I found Dezső on LinkedIn, sent over a short brief, and what landed in my inbox was straight off the bat exactly the site I had pictured. We made two very minor changes and shipped it. No long calls, no decks, no waiting on revisions. Honestly the cleanest hand-off I have ever had with a developer.

    Outcome: Cleanest developer hand-off he has had

    Michael J Ringer

    Michael J Ringer

    Founder · Vilya Protection

  • New shop, more orders in the first week.

    We had a template shop that looked like everyone else's. Dezső rebuilt it from scratch. Fast, clean, looks great on a phone. We sold more from the first week, and the work landed on time, no surprises.

    Outcome: More buyers from the same traffic

    Müller Márk

    Müller Márk

    Managing Director · GeekCorner

  • Took an AI from demo to production. Now it serves real customers.

    We had an AI that looked great in a demo but kept breaking with real users. Dezső took it through to a real product, with checks at every step so nothing odd reaches a customer. Nine weeks later, live traffic, no fires.

    Outcome: AI in front of real customers

    Joran

    Joran

    Founder · product · Noaber AI

  • Orders and invoicing now run themselves.

    Order tracking, client approvals, invoicing. The things that ate my evenings. Dezső built one internal tool in a month and now they just happen. Nothing fancy on the surface, but I got my evenings back.

    Outcome: Got his evenings back

    Júlio Reyes Castro

    Júlio Reyes Castro

    Owner · print + design · JairePrint

  • Three ready-to-post clips in the time it took to make one.

    Raw footage goes in, ready-to-post clips come out. The system catches mistakes before anything goes public. I'm not editing less carefully, I'm just not doing the boring repeat work anymore.

    Outcome: 3× as many videos out the door

    Kristóf

    Kristóf

    Short-form editor · Creator Community

  • Live in two weeks. Looks like a label is behind me.

    I wanted something that didn't look like a typical 'musician's homepage'. The site loads instantly, works on a phone, and the streaming numbers actually went up after we shared it. Two weeks from kickoff to live.

    Outcome: Live in 2 weeks · streaming numbers up

    Jerzso

    Jerzso

    Musician · Jerzso Music

21 more reviews are on the case-study pages under NDA: real clients, roles and countries, names withheld at their request.

Credentials, each one verifiable

Every certificate below links to the issuer's own verification page. Anything that cannot be checked is not on this list.

  • Harvard

    Harvard 2023

    CS50 · Computer Science certificate

    Verify
  • Google

    Google 2024

    Professional badge · verifiable on Credly

    Verify
  • EU · EITCA

    EU · EITCA 2024

    EITCA/IS · European Information Security certification

    Verify
  • IBM

    IBM 2024

    Professional badge · verifiable on Credly

    Verify
  • Ackee Blockchain

    Ackee Blockchain 2025

    School of Solana · Season 8 graduate

    Verify
  • Alchemy University

    Alchemy University 2025

    EVM Chain Certification

    Verify
  • Infosec Institute

    Infosec Institute 2025

    Blockchain Security certification

    Verify

Security and data work is mapped to

  • GDPR · NAIH-aligned
  • NIS2 readiness
  • EU AI Act classification
  • OWASP Top 10 · Web + LLM
  • SOC 2 / ISO 27001 control mapping
  • PCI-DSS scope

Thirty minutes, no deck, and you leave with your two or three quickest wins.Book the intro call

Tell us the problem in plain words.

Book the intro callContact

DField Bt. · Dunakeszi · dezso@dfieldsolutions.com
5.0
“From LinkedIn DM to live site. Two tiny tweaks, then shipped.”Michael J Ringer · Vilya ProtectionFounder · Spain