DField SolutionsMérnöki stúdió · Budapest
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Senior engineers · Budapest · EU-billable(budapest) / 47°29′N
AIyour business
actually runs on.
(01) about

One team. A working first version in 14 days. Security and quality built in.

7 verified clients
19+projects shipped
Start a projectBook 30-min call
CERTIFIED · TRUSTED8 institutions · 2023–2025

Backed by the institutions that matter.

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

  • 01Harvard · CS50
    2023
    Harvard

    Harvard CS50 · Computer Science certificate.

    Verifyf1dcf1…5a92
  • 02Google · Credly
    2024
    Google

    Google professional badge · publicly verifiable on Credly.

    Verify830a7a…d736
  • 03EU · EITCA
    2024
    European Union

    EITCA / IS · European Information Security certification.

    VerifyEITCA/…4421
  • 04Audit · Onchain
    2025
    Ackee Blockchain

    Ackee Blockchain · School of Solana Season 8 graduate.

    Verifydezso-dfield
  • 05Infrastructure · Web3
    2025
    Alchemy

    Alchemy University · EVM Chain Certification.

    Verify0xCBE9…37DE
  • 06IBM · Credly
    2024
    IBM

    IBM professional badge · publicly verifiable on Credly.

    Verify387e17…2110
  • 07Agency · Cybersecurity
    2025
    28 Digital

    28DIGITAL · Cybersecurity Consultant certification.

    VerifyYHITNMKUZ3QA
  • 08Infosec · Coursera
    2025
    Infosec Institute

    Infosec Institute · Blockchain Security certification.

    Verify5WGF2VG797NS
8 verified credentials · paperwork on requesthello@dfieldsolutions.com →
02WHAT CLIENTS SAY/ 11
(02) WHAT CLIENTS SAY

Five-star delivery. That's why they stay.

Same bar on every project. Small brief or NDA-locked enterprise, doesn't matter. Named and NDA clients both rate us five out of five.

5.0 / 5

One bar. One quality. Every project.

    HU

    “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.

    Müller MárkMüller MárkGeekCorner
    geekcorner.hu
    PT

    “Built an AI app that reads your watch data. It actually tells you when something's off, in plain everyday words”

    Our smartwatches were collecting data nobody actually read. The studio built a system that connects the dots, sleep + heart rate + activity together, and tells you in plain words what changed and why it matters. The week we started using it, it caught a pattern I'd missed for years. The team also handed back a manual so we can keep adding new sources without rebuilding everything.

    AnonymousAnonymousAIHealthIQ
    NDAProject
    MX

    “Internal automation tool for a print studio. 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.

    Júlio Reyes CastroJúlio Reyes CastroJairePrint
    Instagram
    HU

    “Built an AI 3D-tour generator for property listings. Photos go in, an explorable first-person walkthrough drops out in seconds”

    We honestly didn't think this was possible. Someone types in a property description, and a moment later there's a 3D model of the apartment that you can walk through in first person, like a video game. Our designers can still tweak it by hand, and within two weeks it was hooked into our listing site. Buyers actually call us back because of these tours.

    AnonymousAnonymous3D AI Property
    NDAProject
    HU

    “Automated video-editing pipeline. 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.

    KristófKristófCreator Community
    Discord
    HU

    “Built the brand site, the course catalogue and the booking flow. From zero to a credible-looking page and incoming calls in a single week”

    We had one week to launch a credible-looking AI-security brand. The studio shipped the website, the courses and the contact flow, exactly how we'd described the brand. The first phone calls came in within seven days. People said it looked like we'd been around for years.

    AnonymousAnonymousUse AI Easily
    NDAProject
    NL

    “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.

    JoranJoranNoaber AI
    Website
    US

    “Built a creator-campaign management platform. The whole campaign, from brief to payment, fits on one calm screen”

    We came in with an email + spreadsheet workflow and a hundred edge cases. The studio narrowed everything down to four simple steps you can see on one screen. Our creators stopped asking 'where's my brief?' and 'when am I getting paid?' from day one, it's all visible, calmly, in one place. The whole team breathed easier.

    AnonymousAnonymousNorth Star Creator
    NDAProject
    HU

    “Built a musician website in two weeks. Looks like a label is behind me, streaming numbers up.”

    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.

    JerzsoJerzsoJerzso Music
    Instagram
    NL

    “Built a private AI assistant that answers from your own documents. Runs on your own server, no data leaves the building”

    We had a strict GDPR rule and 6 weeks to ship. The studio built a chatbot that runs entirely on our own server, we just upload a folder of documents, and it answers like a colleague who's read all of them. The website code went live on day 38. Not a single byte of customer data has ever left our machine. Our compliance officer literally smiled when he saw it.

    AnonymousAnonymousAI Chatbot Maker
    NDAProject
    EU

    “Vilya Protection website, from LinkedIn DM to live. 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.

    Michael J RingerMichael J RingerVilya Protection
    vilyaprotection.com
    DE

    “Built an AI phishing-simulation tool. Personalised tests fool the team for real, and the NIS2 paperwork writes itself in the background”

    We needed phishing tests that actually fool people, plus the NIS2 paperwork that auditors love. PhisGuard does both, the AI-tailored emails actually trick the team, they learn from getting caught, and the security report we hand to the auditor writes itself in the background. We didn't have to rewrite a single line.

    AnonymousAnonymousPhisGuard
    NDAProject
    DE

    “AI insights from wearable data. The watch finally tells the user what to do, not just plots a chart.”

    We had a health-AI product idea and nobody believed it could ship at Berlin pace. Seven weeks later he delivered the full UI plus the AI pattern-recognition layer · the smartwatch readings now turn into a sentence the user can act on, not another dashboard. Audit-ready GDPR pack came in the same shipment.

    AnonymousAnonymousAIHealthIQ
    Project
    DE

    “Built an MCP intent-guard for AI agents. Before the agent transfers money, the system checks intent. Like a colleague asking 'are you sure?'”

    Our AI agents were already touching live systems, and we had no good answer for the auditor. The studio added a layer that checks every action before it happens, like a colleague asking 'are you sure?' before the button is pressed. The audit log and the rule file passed the regulator's review on the first try.

    AnonymousAnonymousMCP Security Layer
    NDAProject
    GB

    “Built an AI flow generator for n8n. Two minutes later a working automation drops out, ready to run, no engineer needed”

    Our project managers used to wait days for an engineer to build them an automation. The studio built a tool where the manager just describes what they want in plain language, and two minutes later a working flow drops out, ready to run. Engineers only check the changes. About two engineering hours saved per workflow, and the team is happier.

    AnonymousAnonymousn8n AI Workflow Generator
    NDAProject
    FR

    “Built an AI-scored news reader. Every article gets a fairness score, so the reader sees right away how slanted it is”

    We wanted to be the news site that doesn't pretend everyone is being honest. They built a system that scores every article, how factual, how opinionated, how political, and shows the comparison side by side. Readers actually click on the score to see why the article got it. People stay on the site twice as long now.

    AnonymousAnonymousThe Truth AI News
    NDAProject
    GB

    “Built a 4-AI committee for crypto trading. Each AI looks at the trade from a different angle, the bot only acts when they all agree”

    We'd been wiped out repeatedly by single-bot strategies that freaked out on every news cycle. The studio built a system where four AIs each look at the trade from a different angle and only act if they agree, like a small committee. The catastrophic losses are gone. The small ones still happen. That trade-off was exactly what we wanted.

    AnonymousAnonymousMulti-Agent Crypto Trading
    NDAProject
    GB

    “Built a sports-prediction tool. The math behind every tip is visible, no more guessing in Excel”

    We were copying odds across four browser tabs and getting parlays wrong in Excel, embarrassing. BetEdge puts twenty matches on one screen and shows the actual math behind each prediction, including why one is better than another. The only thing left to do is decide whether to place the bet. Our hit rate doubled.

    AnonymousAnonymousBetEdge
    NDAProject
    AT

    “Built a blockchain property platform. The whole purchase is one transaction, with proof of ownership stored on-chain forever”

    Property transfers between countries used to take six weeks of paperwork. The studio built us a marketplace where the whole sale happens in one transaction, and the buyer gets a digital certificate on the blockchain that proves they own it, forever. The auditor signed off in a week. Buyers from outside the country can finally buy without flying in.

    AnonymousAnonymousCrypto Properties
    NDAProject
    HU

    “Built a scroll-driven story site. As you scroll, the character's full arc plays out start to finish, like watching a film”

    We wanted something completely different from anything in our market, no boring page-after-page click-through. The studio built a site where you don't click at all: you just scroll, and a single character's story unfolds in front of you from start to finish, like watching a film. Two years later the brand still uses it. We never replaced it because no local studio came close.

    AnonymousAnonymousDField Lab
    NDAProject
    HU

    “Built a Solana-based event ticketing system. Every ticket is its own digital token, the scanner just says 'used', 'fake' or 'valid'. No debate”

    We'd been having forged-ticket arguments at the door of every event for years. The studio built a system where each ticket is its own digital token on the blockchain, the scanner just says 'used', 'fake' or 'valid', and that's it. No debate, no shouting. Our door staff stopped getting yelled at, and we stopped losing real money to fakes.

    AnonymousAnonymousSolana Event
    NDAProject
    MT

    “Built a browser poker engine. Real animated table, smooth play, chips slide naturally, works the same on phone and laptop”

    Most browser poker products feel like a spreadsheet with cards on it. This one doesn't, the animations are right, the chips slide naturally, and players see the same thing whether they're on a phone or a laptop. Our community played for hours the night we launched it.

    AnonymousAnonymousDField Poker
    NDAProject
    IT

    “Built GlowUp, a self-improvement mobile app. Two-minute morning routines bring people back even on bad days”

    We'd already failed twice with self-improvement apps that died in App Store review. The studio shipped this one through review on the first try, and the streak feature actually keeps people coming back, even on the worst days. The 2-minute floor was the smartest call: when someone's tired they can still do something tiny and not break the chain.

    AnonymousAnonymousGlowUp
    NDAProject
    GB

    “Demoed a working exploit in four seconds. The team saw that anyone outside could have taken the print server over completely”

    We had a 'firewall closes everything, we're fine' attitude and a print server we'd forgotten existed. The proof-of-concept took four seconds, and showed our security team that someone from outside could take the whole thing over completely. The patch and the network split we'd been arguing about for months happened the next week. Sobering, but exactly what we needed.

    AnonymousAnonymousCVE-2023-27350 · PaperCut RCE PoC
    NDAProject
Named + NDA · side by sideReferences on request →
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
SHIPPED WORK

Sites and products already live.

19 / 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
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 · 8 WEEKS

Custom software, AI, security & website — all in one engagement, 8 weeks.

One engineer accountable for everything. Eight weeks: software you own, AI giving your team 10–20 hours back per week, a website that converts better, and security signed off — Budapest studio, EU-billable.

Start the 8-week programBook 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 tier01
€6,500–14,500Website + AI + security

Marketing site, AI built into existing tools, NIS2-aligned hardening

Best forTeams of 5–25 · revenue under €1MStarting from
Mid-market tier02
€14,500–36,000Custom software included

+ custom software replacing 4–6 SaaS tools, ERP integrations, audit-ready paperwork

Best forTeams of 25–250 · revenue €1M–€20MStarting from
Step up
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
  • 01 · Essential
    100% IP ownershipSource code, credentials, configs · transferred on day one.
  • 02 · Essential
    30-day bug guaranteeAny bug we shipped gets fixed free. No invoice debate.
  • 03 · Essential
    Full handover docsAny engineer can pick up the work · we make sure of it.
  • 04 · Essential
    Purple Team securityWe attack the system, then patch it. Not a scorecard · a fixed system.
  • 05 · Essential
    GDPR + EU AI Act readyAudit-ready paperwork goes out with the code.
  • 06 · Essential
    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
06 tracks · scoped separately✦

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
Value calculator

How much does this actually pay back? A 30-second estimate.

Pick the services you're considering, set your team size, and see the typical investment range plus the value the work pays back over a year — based on real client outcomes.

Monthly value returned2 tracks · 5 people
€4.2k/ month
Typical payback≈ 6 months
06 mo12 mo18 mo24 mo
Estimated investment€4.2k–€26kEstimate · the real number depends on scope
12-month net value+€25kGet a personalised quote
01 · Which services?2 / 6
02 · Team size5 people
1102550

Net of the upper-bound investment · the lower bound pays back faster.

07INDUSTRIES/ 11
INDUSTRIES

Where we do our best work.

We know these fields deeply · you don't pay for us to learn on your project.

01

Fintech / banking

Compliance-first, PSD2 / SCA, realtime ledger, AI fraud.

02

Health / biotech

HIPAA / GDPR-sensitive data, FHIR, AI diagnostics.

03

B2B SaaS

Multi-tenant, usage billing, admin portal, integrations.

04

Web3 / onchain

Smart contracts, tokenization, wallet UX.

05

E-commerce

Headache-free checkout, headless storefront, personalisation.

06

Education / LMS

Video pipelines, quiz engines, AI tutors.

Standards · regulatory chrome

Audit-ready paperwork ships with the code.

Every engagement closes with the documents your auditor, your CISO and your finance team need · already cross-mapped to the frameworks they're working from.

  • GDPR01

    GDPR · NAIH-aligned

    DPIA, retention rules, data-export pipeline shipped with every engagement.

  • NIS202

    NIS2 · readiness package

    Risk register, 24/72 h incident reporting flow, supplier-security review.

  • EU AI ACT03

    EU AI Act · classification ready

    Risk-tier mapping, transparency notice, bias-evaluation evidence.

  • SOC 2 · ISO 2700104

    SOC 2 · ISO 27001 control mapping

    Findings mapped to your existing control framework · audit gaps closed.

  • OWASP TOP 1005

    OWASP Top 10 · Web + LLM

    2024 web list and the LLM Top 10 v2 covered on every penetration test.

  • PCI-DSS06

    PCI-DSS · payment-card scope

    Stripe / SimplePay / Barion integrations stay out of in-scope territory.

  • NAV ONLINE SZÁMLA v307

    NAV Online Számla v3

    Hungarian e-invoice submission ships with every Hungarian-market e-commerce build.

  • MNB · CSRD08

    MNB fintech · CSRD reporting

    Hungarian fintech licensing prep + EU sustainability-reporting data pipelines.

Documentation included on every build
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 on01 · 11
BudapestHungary

New shop, more orders in the first week.

Müller MárkGeekCorner
  • 01BudapestHungary
  • 02AchterhoekNetherlands
  • 03LondonUnited Kingdom
  • 04PortoPortugal
  • 05AlicanteSpain
  • 06BerlinGermany
  • 07ViennaAustria
  • 08TallinnEstonia
  • 09ConnecticutUnited States
  • 10MonterreyMexico
  • 11São PauloBrazil
09ENGAGEMENT MODELS/ 09
ENGAGEMENT MODELS

Transparent pricing. Three ways.

One pricing structure across all work. No separate bill for AI, security, or mobile. Senior engineers, end-to-end.

included in every tier· Production engineering team· Code, tests, docs are yours· EU-based, GDPR-native- in every plan
(01) SPRINT
Fixed scopeTight scope, fast delivery
  • 1 dedicated engineer
  • 2–4 weeks
  • Weekly demo
  • 30 days post-launch support
Let's talk
(02) PRODUCT · most picked
Dedicated teamNew product from zero, multiple domains
  • 2–3 dedicated engineers
  • 3–6 months
  • Live deploy + CI/CD
  • SLA option
Kick off product
(03) RETAINER
Long-termLong-term technology partner
  • ~30h/week capacity
  • Incident help when needed
  • Quarterly review
  • Direct Slack
Book retainer
(04) ENTERPRISE
Custom

On-prem, SOC2, dedicated engineers, custom SLA

  • Unlimited capacity
  • Forward-deployed engineer
  • Custom integrations + SSO
  • Dedicated architect
Talk to founder
(05) startup

Startup Program

Engineering credit · dedicated support · 6 months to build

Apply now
11FAQ/ 11
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.
(07) READY WHEN YOU ARE

Tell us what you'd build · we reply within 24 hours.

One sentence is enough. EN or HU.

Send an emailBook a call · 30 min
Connectdezso@dfieldsolutions.com
Book a callGoogle Meet · 30 min
BudapestBudapest
1011 Budapest
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