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Available for projects

I build systems that run in the background —
so you can focus on the work.

Full-stack developer who takes full ownership. SaaS platforms, automation, reliable infrastructure — delivered turnkey, ready to run.

Node.js React Python FastAPI PostgreSQL Docker Nginx Linux Redis REST API
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// Services

What I build for you

Seven core service areas. Whether you need a complete platform or a focused integration, I deliver end-to-end.

Programming
Custom backend, frontend and API integrations — Python, Node.js, TypeScript, PHP. From a focused feature to a full build.
Web Development
Modern websites and web apps with Next.js or WordPress — fast, mobile-friendly, and built around your brand.
SEO
Technical audits, on-page optimization and content strategy — a data-first, RankFlow-driven approach.
DevOps
Server setup, Docker deployments, CI/CD, monitoring and backups. Reliable infrastructure that runs in the background.
Consulting
Tech-stack and architecture advice, code review, AI integration. A second pair of eyes that makes the difference.
AI Integration
Voice agents, RAG knowledge bases and generated content — wired into real products, not demos. Vapi, Deepgram, OpenAI, Gemini.
SaaS Platforms
Multi-tenant architecture end to end: per-tenant branding, billing, roles and data isolation. Several platforms running in production.
// Built so far

Things I've shipped

Products I designed, built and run myself, from the server to billing.

RankFlow
AI platform
AI-powered content platform for SEO professionals. Bulk article generation, keyword research, and automated publishing workflows.
rankflow.cloud
BookFlow
SaaS
Multi-tenant booking platform for service providers — hairdressers, trainers, beauticians. Custom-branded frontend per tenant on a shared backend, with online payments, SMS reminders and a map-based provider search.
bookflow.hu
KmFlow
SaaS
Trip-log and waybill SaaS for Hungarian businesses: an OBD GPS tracker records every trip, and the month closes into a PDF that follows NAV rules, with receipt-photo fuel entries and read-only access for the accountant.
kmflow.cloud
HelpdeskHub
SaaS
Customer support platform for webshops — chat, email and a Hungarian-speaking voice AI in one inbox. RAG knowledge base, SLA deadlines calculated automatically.
helpdeskhub.cloud
Meghívó
SaaS
Event invitation platform with Stripe payments and NAV-compatible invoicing. Built end-to-end, including the email tracking dashboard.
meghivo.eu
Daniel Toth Trading
Trading tools
Free Smart Money Concepts tools for forex and gold (interactive SMC scenarios, a drawdown simulator, a session clock and risk calculators) and a waitlist for my XAU/USD bot.
trading.tothdanieldeveloper.com
TD88 MCP
WordPress plugin · AI
Turns a WordPress site into a remote MCP server, so Claude or ChatGPT can work on it safely: OAuth 2.1 with PKCE, per-tool approval, and a restore point with undo for every change.
Történet Műhely
Creative SaaS · Demo
Story-writing platform with multi-currency Stripe subscriptions, MailHub email, and NAV-compatible automated invoicing.
tortenet.tothdanieldeveloper.com

Under the hood

The infrastructure behind them, built in-house.

MailHub
Infrastructure
Self-hosted email infrastructure with REST API. Bearer-token auth, DKIM/SPF/DMARC, webhook deliveries, multi-organization isolation.
SMSHub
Infrastructure
Self-hosted SMS/RCS gateway: an Android phone sends and receives messages for my apps through a REST API, with per-app quiet hours and reply routing.
ServerHub
Monitoring
Monitoring platform I built for my own fleet: uptime checks, certificate expiry and alert management across every server I run. Not a demo — it runs the estate.
VulnWatch
Security
Daily vulnerability scan of every server and container with Trivy, an hourly check against CISA's list of actively exploited flaws, and alerts only for production findings.
// Writing

Notes from the work

Long-form write-ups on infrastructure, architecture and automation — the same problems I solve for clients, explained in full.

VPS Security Hardening
Infrastructure · Guide
A practical checklist for locking down an Ubuntu server — SSH, firewall, fail2ban and the mistakes that leave a box exposed.
Horizontal vs Vertical Scaling
Architecture · Explainer
When to add servers and when to add resources — with the cost and complexity trade-offs that decide it in practice.
Infrastructure as Code
DevOps · Guide
Why small projects benefit from IaC too, and how to start without drowning in tooling.
Read all posts →
Daniel Toth — Dev Blog
Notes on infrastructure, automation and building SaaS — from the work itself.
// Let's talk

Have a project in mind?

Start with a short message about what you're building, and I'll get back within a couple of days.

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