DField Solutions

DField Solutions is a Budapest-based engineering studio delivering production-grade AI, web, mobile, blockchain, and cybersecurity solutions for SaaS, fintech, and e-commerce teams across the EU and globally.

Founded in 2023 by Dezso Mezo, the studio operates on a single principle: senior engineers only, no junior subcontracting. The same team that scopes your project ships the code — and the founder reviews every release.

What we deliver:

AI automation: LLM agents, RAG pipelines, document search, CRM automation, n8n workflow generators

• Custom software: Full-stack web apps, internal tools, multi-tenant SaaS platforms
• Web & mobile: Next.js, React, React Native — iOS and Android from one codebase

Cybersecurity: Purple Team pen testing, prompt injection audits, NIS2 readiness, phishing simulation

Blockchain & Web3: Solidity (EVM), Solana (Rust/Anchor), smart contract audits

Every engagement includes 100% IP ownership, a 30-day bug guarantee, full handover documentation, GDPR and EU AI Act readiness paperwork, and a 90-day roadmap.

We have shipped 19+ projects across Hungary, the Netherlands, Germany, the UK, the US, and beyond — with a 5.0/5 client rating across all named and NDA engagements.

Working v1 in 14 days. EU-billable. English and Hungarian.