Who is DField Solutions?

DField Solutions is a Budapest-based engineering studio that ships production-grade AI, web, mobile, blockchain and cybersecurity work for SaaS, fintech and e-commerce teams across the EU. Founded 2023 by Dezső Mező, an ex-fintech CTO. Senior engineers only · no junior subcontracting on your project.

What do you actually deliver?

Code shipped to production. AI agents with eval harnesses, RAG pipelines on Hungarian or English content, smart-contract audits with fix-PRs, multi-tenant SaaS on Postgres with FORCE RLS, iOS / Android apps ready for store submission, NIS2 / SOC2 / AI Act readiness packs. Every engagement ends with something running, not a deck.

How much does it cost? (and is there a price page?)

Yes · /pricing has the three tiers: fixed-price audit from €4 000, build sprints from €15 000, embedded retainer from €9 000/month. Net-30 invoicing in EUR / HUF / USD. EU B2B reverse-charge VAT. New clients pay 50% upfront; repeat work runs on net-30 only.

How quickly do we start to see results?

Two weeks. Our smallest engagement is the 14-day audit · you get a clickable prototype, a written report, and concrete fix-PRs against your repo by the end of week two. Build sprints run 4-12 weeks with fortnightly demos, so you see real output every two weeks regardless of sprint length.

Why you instead of an agency or a freelancer?

Agencies sell hours and rotate juniors through your codebase; freelancers can't carry the full stack from AI down to compliance paperwork. We do both: production engineering across every layer, with the security review baked in (most agencies bolt it on at the end, most freelancers skip it). And we only do senior · the founder still ships code on every engagement.

Where are you based and which languages do you work in?

Budapest, Hungary. We deliver across the EU (Vienna, Berlin, Amsterdam, London) plus remote-EU engagements. Daily client communication in English or Hungarian; the codebase and docs are always in English so the work travels with you. Time-zones up to GMT-5 work fine async with one weekly sync.

Who actually writes the code? Do you outsource?

We write the code. No outsourcing, no sub-contractor chain, no offshore sweatshop. The team that scopes the engagement is the same team that ships the PRs · and the founder reviews every release. You can verify on /authors and /uses · no ghost-team trick.

Is GDPR / AI Act / NIS2 compliance handled?

Yes. Every engagement carries a documentation pack: GDPR DPA, AI Act risk classification (when AI is in scope), NIS2 readiness checklist, SOC2 / ISO 27001 alignment notes. Data stays in the EU, processed by a Hungarian EU member state. We've shipped this on fintech, SaaS and Web3 projects · we don't subcontract the compliance work to a separate auditor.

Can I see real client outcomes?

Yes. Visit /case-studies for shipped work with named clients (where NDA permits), measurable outcomes, and before / after numbers. /projects shows live URLs you can click through.

Can you sign an NDA before the first call?

Yes. Send your template (we sign yours if the contents are standard) or use ours. We can also sign before scoping discussions if your project is sensitive.

DField Solutions · AI, web, mobile & cybersecurity engineering for European SaaS

Senior engineers · Budapest · EU-billablebooking q2 · q3 2026(budapest) / 47°29′N

AIyour business

actually runs on.

(01) about

One team. Production code in 14 days. Security audit on every build.

Start a project Book 30-min call See pricing

book 30-min

From the founder

Why we built the studio. In four minutes.

Dezső on how a 30-minute call becomes production code in week two.

Coming soon≈ 4 min · captioned

02CLIENT VOICE/ 03

(02) CLIENT VOICE

Excellence shipped. That's why they stay.

Same bar on every project · regardless of brief size or NDA. Named and NDA clients both rate us five.

5.0 / 5

One bar. One quality. Every project.

“Our webshop went from 'looks like everyone else' to ours.”

We had a template shop that nobody could tell apart from the next ten. Dezső redesigned it from scratch · animated, fast, looks great on a phone. We were selling more in the first week. Calm communication, on time, no surprises.

geekcorner.hu

“AI-correlated lifestyle plan by Friday”

AIHealthIQ went from a wearable-data dump to a coherent recommender in one engagement · the correlation engine is what we couldn't build in-house. The team handed back the runbook and the ingest can be extended without re-architecting the AI layer.

NDAProject

“The boring back-office work finally runs without me.”

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.

Instagram

“Walkable 3D in seconds”

We needed walkable 3D from prose specs, with a manual escape hatch for designers. The studio shipped both, plus the API · listing portal integration came in under two weeks once the pipeline was stable.

NDAProject

“I used to edit one video. Now I ship three in the same time.”

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.

Discord

“Site, courses, contact in one flow”

We needed a credible-looking site fast for the AI-security launch · the studio shipped on time, the brand reads exactly as we discussed, and inbound calls started within the first week.

NDAProject

“We had AI that worked in demos. Now it works for paying customers.”

Our AI sat in notebooks · brilliant, fragile, never quite ready for real users. Dezső took it through to production · with checks at every step so nothing weird reaches a customer. Nine weeks later, real traffic, no fires.

Website

“One quiet dashboard in”

We came in with an email + spreadsheet workflow and a hundred edge cases. The studio scoped it down to four pipeline states · the creators stopped asking 'what's the status' on day one of the rollout.

NDAProject

“My launch site felt like a real label was behind it.”

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

Instagram

“Get a private chatbot, on your server, in 5 minutes”

We had a hard GDPR constraint and a 6-week deadline. The chatbot stack landed on the customer's box, end-to-end, in week 5 · the embed snippet went live on day 38 with zero data leaving their server.

NDAProject

“AI-tailored ones land · and teach”

We needed a phishing-sim platform that does the NIS2 paperwork as a side-effect of running the campaigns. PhisGuard does · CISO export went straight to the auditor without a manual rewrite.

NDAProject

“MCP Security checks intent · then decides”

We had AI agents calling production tools and no good story for the auditor. MCP Security gave us one layer · the audit log + YAML policy passed regulator review on the first round.

NDAProject

“Get a ready-to-import n8n JSON in 2 minutes”

Our PMs were asking devs to build n8n flows for them. Now the PMs ship the JSON in chat and we just review the diff · saved roughly two engineering hours per workflow.

NDAProject

“Or read one feed that scores them all”

We wanted a news product that doesn't pretend bias doesn't exist. The studio shipped the score engine and the diff view together · readers actually click the bias ribbon to see why a piece scores how it does.

NDAProject

“Four agents · cross-checked decisions”

We tried single-bot strategies and got chopped on the next news cycle. The quorum approach hasn't eliminated drawdowns, but it eliminated the catastrophic drawdowns · which is what we needed.

NDAProject

“Math, not gut feel”

We were copy-pasting odds across four tabs and screwing up parlays in Excel. BetEdge collapses that into one screen with the rationale visible · the only thing left to do is decide whether to place.

NDAProject

“Or one Ethereum tx with NFT proof”

We needed a marketplace that an external auditor could actually sign · the studio shipped the contracts, the indexer, and the threat-model document together so audit prep was a week, not a month.

NDAProject

“One character's journey, end to end”

We wanted something nobody else in the market had. The studio shipped a scroll-bound narrative the brand still uses two years on · we never replaced it because nothing local came close.

NDAProject

“Solana NFT tickets · QR check-in”

We had a forged-ticket problem at the door of every event. The Solana program ended that conversation · scanner says spent or fake, no debate.

NDAProject

“Animated table · real-time sync · mobile-OK”

Browser poker products usually feel like a spreadsheet. This one doesn't · the animation budget is right and the sync is stable across mobile + desktop seats.

NDAProject

“GlowUp · 2-minute mornings, every day”

We'd been through two self-improvement app builds that died in store review. The studio shipped this one through review on the first attempt and the streak engine actually keeps users · the 2-minute floor was the right call.

NDAProject

“SYSTEM shell · 4 seconds”

We'd had a 'firewall closes everything' policy and a forgotten PaperCut server. The PoC walked SOC through the actual blast radius in four seconds · the patch + segmentation conversation finally landed.

NDAProject

Named + NDA · side by sideReferences on request →

Reach · who we've shipped for

Real engineers, EU-based, shipping across three continents.

Budapest studio, EU-billable, working in English and Hungarian. The pin moves every few seconds · every dot is a city where a real engagement landed.

Live now

Budapest · Hungary

Currently focused on

BudapestHungary

The studio rotates the camera through every city on the map · zoom locks once you hover on a marker.

Clients here

Müller MárkGeekCorner
KristófCreator Community
JerzsoJerzso Music

Languages: EN · HU
UTC offset: Europe / UK / Americas
CITIES / COUNTRIES: 10 cities · 9 countries
RETAINER MEDIAN: 12-month retainer median

01BudapestHungary
02AchterhoekNetherlands
03LondonUnited Kingdom
04PortoPortugal
05BerlinGermany
06ViennaAustria
07TallinnEstonia
08ConnecticutUnited States
09MonterreyMexico
10São PauloBrazil

WHY US

What we ship · why it's different.

AI, web, mobile, security · one team, fixed deadline, real invoice.

PROTOTYPE01

14 days

Working code by end of week 2

Two-week sprints end with something you can click. Not a deck.

ENGINEER02

Senior

Senior-only · no juniors on your project

Ex-fintech CTO leads. Everyone has shipped production systems for years.

COMPLIANCE03

Compliance handled · paperwork done

Your data stays in Europe. We handle GDPR + the new AI rules so you don't get a letter from the regulator.

ON EVERY BUILD04

Audit

Security check before every launch

Real-world security testing runs before anything goes live. Not a separate invoice you forgot to ask for.

With usVS THE REST →

Classic agency · freelancerLet's talk →

How we work

Everything your business needs. Eight weeks. Done.

One engineer accountable for everything · custom software, AI, website, security · or pick a single track.

FULL BUSINESS TRANSFORMATION

Custom software, AI, security & website · all in one go.

One engineer accountable. Eight weeks. Software you own, AI giving your team 10–20 hours back per week, a website that converts better, and security signed off.

Start the 8-week program Book 30-min discovery call

★ Week 2 guarantee · If you haven't seen measurable results by end of Week 2, the engagement stops. You pay nothing for the remaining weeks.

SME tier€6,500–14,500Website + AI + securityStarting from

Mid-market tier€14,500–36,000Custom software includedStarting from

What's in the 8 weeks01 → 04 · 8 weeks

01Weeks 1–2

Audit + quick wins

We map where time leaks. Three quick wins live by the end of week 2 so you feel the change immediately.

02Weeks 3–5

Build

Custom software, the new website, and AI inside the tools you already use. 10–20 hours per week back.

03Weeks 6–7

Security

We attack the system, find the gaps, fix them. GDPR + EU AI Act paperwork ready when we hand over.

04Week 8

Handover

Code, credentials and docs land in your hands. A 90-day roadmap tells you what's smart to ship next.

Included on every engagement6 essentials

100% IP ownershipSource code, credentials, configs · transferred on day one.
30-day bug guaranteeAny bug we shipped gets fixed free. No invoice debate.
Full handover docsAny engineer can pick up the work · we make sure of it.
Purple Team securityWe attack the system, then patch it. Not a scorecard · a fixed system.
GDPR + EU AI Act readyAudit-ready paperwork goes out with the code.
90-day roadmapDelivered at handover · what to ship next, costed.

Why one engagement, not three vendors

Website agency + automation consultant + security firm = €20,000–60,000, three timelines, three invoices, and nobody accountable for the whole thing. The 8-week program delivers all of it under one contract at a fraction of the combined cost.

Or pick one

Buy a single track.

Each track is scoped, priced, and delivered on its own. 100% IP ownership and 30-day support included on every one.

01Software

Custom software

Built from scratch · web apps, internal tools, dashboards. Yours from day one.

from €4,000Starting from · 3–10 weeks

Full-stack web apps (React, Next.js)
Internal tools + admin dashboards
SaaS platforms with login + billing

See scope

02AI

AI automation

AI inside the tools your team already uses. No new platform to learn.

from €3,200Starting from · 2–6 weeks

Email triage + automated follow-up
AI search over your own documents
CRM automation + lead qualification

See scope

03Web

Website transformation

Faster site, more customers. Every second saved = 7% more conversions.

from €2,000Starting from · 2–4 weeks

Full redesign or speed-up of the existing one
Mobile-first · most traffic is on a phone
SEO structure + schema for Google rich-results

See scope

04Security

Purple Team security

We attack it. We find the gaps. We fix them. Not a report · a hardened system.

from €2,800Starting from · 1–3 weeks

Attacks against your AI agents (prompt injection)
OWASP Top 10 full coverage
Phishing simulation against your team

See scope

05Web3

Blockchain & Web3

Smart contracts to frontend, one team. Security audit always included.

from €3,200Starting from · 2–10 weeks

Ethereum, Base, Polygon, Arbitrum
Solana smart contracts (Rust + Anchor)
Smart-contract security audit included

See scope

06Ongoing

Monthly retainer

An engineer on call after the project ships · or for systems already running.

from €600 / monthStarting from · Monthly · 1-month minimum

10 engineering hours per month
Bug fixes + small features
AI prompt-tuning + model updates

See scope

CERTIFIED · TRUSTED7 institutions · 2023–2025

Backed by the institutions that matter.

Harvard, Google, EU programmes, Ackee, Alchemy, IBM · paperwork on request.

01Education · Fellowship
MAIN2023
Harvard Innovation Labs · venture-track fellowship.
02Big Tech · Programme
MAIN2024
Google for Startups · cloud credits + mentorship.
03Public · Innovation
MAIN2024
EU innovation programmes · Horizon-aligned grants.
04Audit · Onchain
2024
Ackee Blockchain Security · external audit partner.
05Infrastructure · Web3
2024
Alchemy · production RPC + indexer infrastructure.
06Enterprise · Cloud
2024
IBM Cloud · enterprise compute + identity stack.
07Agency · Partner
2025
28 Digital · co-delivery partner on agency briefs.
08Join · Your turn
Become the next.
Want your logo on this shelf? Let's start with a 30-minute scoping call.
Get in touch →

7 verified credentials · paperwork on requesthello@dfieldsolutions.com →

SHIPPED WORK

Sites and products already live.

18 / selected2022 · 2026

Every card is a real project we shipped · apps, websites, AI systems, blockchain. Tap a card to see it running.

View all projects

01/ 2026live

AIHealthIQ

AI solutionsWebsites, web apps & online shopsMobile apps · iPhone & Android

AI reads your wearable data, spots changes, recommends treatment and lifestyle tweaks.

02/ 2026live

3D AI Property

AI solutionsWebsites, web apps & online shops

AI-generated 3D properties and interiors, walkable in FPV · with a manual editor and drone view.

03/ 2026useaieasily.com

Use AI Easily

AI solutionsCybersecurityWebsites, web apps & online shops

An AI firm's website · home of Hungary's first dedicated AI-security practice.

04/ 2025northstarcreator.com

North Star Creator

Websites, web apps & online shops

An influencer and creator management platform with a quiet, clean design.

05/ 2026live

AI Chatbot Maker

AI solutionsWebsites, web apps & online shopsCustom software · everything else

One-click SaaS to build a company's own AI chatbot · upload a folder, point at a site feed, everything stays on your server.

06/ 2025geekcorner.hu

GeekCorner

Websites, web apps & online shops

Hungary's first custom-designed Mystery Box + geek webshop · conversion rate jumped.

07/ 2026live

PhisGuard

CybersecurityAI solutionsCustom software · everything else

AI-powered phishing simulation campaigns for companies · realistic scenarios, live tracking, automated awareness training.

08/ 2026live

MCP Security Layer

AI solutionsCybersecurityCustom software · everything else

A security layer between an AI agent and its tools · checks every tool call at the intent level, blocks or approves, logs.

09/ 2026live

n8n AI Workflow Generator

AI solutionsWebsites, web apps & online shopsCustom software · everything else

Describe the workflow in plain language, get a ready-to-import n8n JSON · all nodes wired, credentials slotted, test data included.

10/ 2026live

The Truth AI News

AI solutionsWebsites, web apps & online shops

The only news aggregator that verifies the source, summarises it, and scores how biased the piece is.

11/ 2026live

Multi-Agent Crypto Trading

AI solutionsBlockchain & smart contracts

Multiple AI agents trade the top 50 crypto tokens together · data, sentiment, news in one.

12/ 2026live

BetEdge

AI solutionsWebsites, web apps & online shops

Data-driven bet analyser · parlay suggestions, best odds, probability math, not guesswork.

13/ 2025live

Crypto Properties

Blockchain & smart contractsWebsites, web apps & online shops

Property marketplace on Ethereum · every sale carries an NFT ownership certificate.

14/ 2025live

DField Lab

Websites, web apps & online shops

A creative microsite that reads as one character's journey · no traditional page transitions.

15/ 2025live

Solana Event

Blockchain & smart contractsWebsites, web apps & online shops

Event platform on Solana · non-forgeable tickets, QR-code check-in.

16/ 2025live

DField Poker

Websites, web apps & online shopsAI solutions

A browser-based multiplayer poker room · animated cards, emotes, real-time table feel.

17/ 2026live

GlowUp

Mobile apps · iPhone & AndroidAI solutions

Self-improvement mobile app on iPhone and Android · goals, daily challenges, TikTok-style short content.

18/ 2025live

CVE-2023-27350 · PaperCut RCE PoC

Cybersecurity

One HTTP request, full SYSTEM shell · the PaperCut CVE-2023-27350 auth bypass, live from recon to reverse shell.

∞/ openYOURS

your slot

Your project lives here next.

Website, mobile app, AI system, or blockchain tool · built by the same team that shipped everything above.

PROCESS · flow04 stages

Discovery

Goals, data, risks, scope locked.

Prototype

Running prototype in week one.

Delivery

Sprint demos. Code + tests yours.

Operations

SLA monitoring + incident response.

OPEN SOURCE

Don't take our word · read the code.

AI agents, a Solana dApp, a registered CVE, pentest tooling · all public on GitHub.

github.com/dezso-dfield

AI solutions

multi_ai_agent_crypto_trading_system

Több AI egyszerre dolgozik · egyikük adatot olvas, másik dönt, harmadik ellenőriz. Ugyanezt a logikát használjuk vevőszolgálat-automatizációra is.

· 3 AI egyszerre · ★3 a GitHubon

Python · Llama · DeepSeekGitHub ↗

NFT esemény jegy · Solana dApp illusztráció

Blockchain & smart contracts

Solana-Event-dApp-DField-Solutions

Rendezvényjegy-eladó alkalmazás blockchain-alapon: a jegyek NFT-ként jönnek létre, a bevétel automatikusan érkezik, a jegyek nem hamisíthatók.

· Élő jegyeladás on-chain

Solana · Anchor · RustGitHub ↗

Biztonsági rés · törött lakat illusztráció

Cybersecurity

CVE-2023-27350

Egy általunk dokumentált biztonsági rés egy ismert nyomtatórendszerben. A világon mindenki ezzel a névvel hivatkozhat rá · a Wikipédiás szintű 'saját CVE-vel rendelkező' biztonsági cred.

· Saját dokumentált sérülékenység

Bash · Biztonsági kutatás · PentestGitHub ↗

Blockchain & smart contracts

school-of-solana-season-8

Kilenchetes blockchain-fejlesztő program anyaga az Ackee Blockchain és a Solana Foundation hivatalos képzésétől. A papír nálunk van · ez azt jelenti: nem önjelöltek vagyunk.

· Ackee × Solana Foundation

Solana · Anchor · TypeScriptGitHub ↗

Websites, web apps & online shops

anyk-nav-installer

Magyar NAV ÁNYK telepítő új Mac és Windows gépre · amit a NAV nem old meg, mi egy kattintással igen. Mutatja: tudunk igazi, magyar problémákat megoldani.

· Magyar · élesben használt

Shell · macOS · WindowsGitHub ↗

AI solutions

Facebook-scraper

Ugyanaz az adatgyűjtő logika, amit az értékesítő csapatoknak építünk: kapcsolati adatokat gyűjt automatikusan, hogy a sales ne kézzel másolgasson.

· Értékesítés-automatizáció

Python · AutomatizációGitHub ↗

08FAQ/ 09

FAQ

Common questions, direct answers.

Most of these we've been asked already · if yours isn't here, email us.

DField Solutions is a Budapest-based engineering studio that ships production-grade AI, web, mobile, blockchain and cybersecurity work for SaaS, fintech and e-commerce teams across the EU. Founded 2023 by Dezső Mező, an ex-fintech CTO. Senior engineers only · no junior subcontracting on your project.
Code shipped to production. AI agents with eval harnesses, RAG pipelines on Hungarian or English content, smart-contract audits with fix-PRs, multi-tenant SaaS on Postgres with FORCE RLS, iOS / Android apps ready for store submission, NIS2 / SOC2 / AI Act readiness packs. Every engagement ends with something running, not a deck.
Yes · /pricing has the three tiers: fixed-price audit from €4 000, build sprints from €15 000, embedded retainer from €9 000/month. Net-30 invoicing in EUR / HUF / USD. EU B2B reverse-charge VAT. New clients pay 50% upfront; repeat work runs on net-30 only.
Two weeks. Our smallest engagement is the 14-day audit · you get a clickable prototype, a written report, and concrete fix-PRs against your repo by the end of week two. Build sprints run 4-12 weeks with fortnightly demos, so you see real output every two weeks regardless of sprint length.
Agencies sell hours and rotate juniors through your codebase; freelancers can't carry the full stack from AI down to compliance paperwork. We do both: production engineering across every layer, with the security review baked in (most agencies bolt it on at the end, most freelancers skip it). And we only do senior · the founder still ships code on every engagement.
Budapest, Hungary. We deliver across the EU (Vienna, Berlin, Amsterdam, London) plus remote-EU engagements. Daily client communication in English or Hungarian; the codebase and docs are always in English so the work travels with you. Time-zones up to GMT-5 work fine async with one weekly sync.
We write the code. No outsourcing, no sub-contractor chain, no offshore sweatshop. The team that scopes the engagement is the same team that ships the PRs · and the founder reviews every release. You can verify on /authors and /uses · no ghost-team trick.
Yes. Every engagement carries a documentation pack: GDPR DPA, AI Act risk classification (when AI is in scope), NIS2 readiness checklist, SOC2 / ISO 27001 alignment notes. Data stays in the EU, processed by a Hungarian EU member state. We've shipped this on fintech, SaaS and Web3 projects · we don't subcontract the compliance work to a separate auditor.
Yes. Visit /case-studies for shipped work with named clients (where NDA permits), measurable outcomes, and before / after numbers. /projects shows live URLs you can click through.
Yes. Send your template (we sign yours if the contents are standard) or use ours. We can also sign before scoping discussions if your project is sensitive.