IT Solutions — Dawid Zmarzlak
Available · quote in 48h

I build websites
and apps that
make
money.

IT Solutions · Dawid Zmarzlak. I build websites, online stores, web apps and AI automations. You work directly with me, with no middlemen. I've been running projects on my own for over 6 years, and earlier, at software houses, I helped ship 20+ products now used by hundreds of thousands of people. I pick the technology to fit your goal, not the other way around.

Free quote →
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Number of pages 4
from5,750 PLN net
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// Lighthouse score · mobile
Median website in Poland47
itsolutionsdz.pl — this siteLCP 2.4 s97
2×higher score

Sources: HTTP Archive (08.2026), PageSpeed Insights (10.2026), mobile

Next.js Vercel
React 18 TypeScript
WordPress Custom theme
WooCommerce PayU · Stripe
PrestaShop 1.7 → 8.x
Spring Boot Java 21
n8n Make · webhooks
LLM / RAG Gemini · Claude
PostgreSQL MongoDB
Tailwind Framer Motion
Sanity Strapi · MDX
AWS · Docker CI/CD
Lighthouse 95+ Core Web Vitals
Schema.org SEO-ready
Next.js Vercel
React 18 TypeScript
WordPress Custom theme
WooCommerce PayU · Stripe
PrestaShop 1.7 → 8.x
Spring Boot Java 21
n8n Make · webhooks
LLM / RAG Gemini · Claude
PostgreSQL MongoDB
Tailwind Framer Motion
Sanity Strapi · MDX
AWS · Docker CI/CD
Lighthouse 95+ Core Web Vitals
Schema.org SEO-ready
Next.js Vercel
React 18 TypeScript
WordPress Custom theme
WooCommerce PayU · Stripe
PrestaShop 1.7 → 8.x
Spring Boot Java 21
n8n Make · webhooks
LLM / RAG Gemini · Claude
PostgreSQL MongoDB
Tailwind Framer Motion
Sanity Strapi · MDX
AWS · Docker CI/CD
Lighthouse 95+ Core Web Vitals
Schema.org SEO-ready
[01] Services

Services. One specialist. Your project.

All services →
[01]

Modern websites in Next.js

My flagship product. Websites that load in a flash, look great on a phone and rank high in Google. For companies that want to stand out with a modern look and collect more enquiries.

[02]

WordPress + WooCommerce

Company sites, blogs and stores on proven WordPress. You edit content yourself in a simple panel, and the store sells: payments, delivery and integrations with your warehouse, couriers and Allegro.

[03]

WP Express

A simple, affordable website built on proven themes. Ready in a week, ideal to start for a micro-business or a sole proprietorship.

[04]

Web apps

Tailor-made systems: logins, dashboards, roles and your own business logic. I build them ready for heavy traffic and future growth.

[05]

Maintenance & hosting

Care after launch: hosting, updates, backups and monitoring. Your site always stays up and you don't lose time on it.

[06]

Migrations & integrations

A move from any platform (Shoper, PrestaShop, Shopify) to WooCommerce with no loss of Google rankings. Plus integrations with ERP systems, wholesalers and marketplaces.

[07]

AI & process automation

AI assistants on your company's data, n8n automations and language-model integrations with the systems you already have. I start with an audit: what's actually worth automating.

// new · AI & automation

AI in your business - where it pays off.

See the AI offer →

  • Process automation

    Invoices, tickets and reports move between your systems without retyping. n8n where it's enough, custom code where it's needed.

  • AI assistant on your company data

    Answers customers and your team from your own documents, and hands anything it doesn't know over to a human.

  • Audit first

    I check what's actually worth automating and estimate the running costs. The audit fee counts towards the implementation.

Audit from 1,900 PLN net · prices for every package on the offer page

// recommendations

I recommend what stays yours.

I recommend tools that beat the market median in Lighthouse tests and stay yours: no platform subscription, and your code and data under your control.

Lighthouse score · mobile (0–100)

Online store

Instead of Shopify I recommend WooCommerce

Shopify — Poland median45
My WooCommerce — median of 3 builds95
  • Shopify The store runs only on a paid subscription and only on Shopify's servers. You can't move it to your own.
  • WooCommerce Open source, no platform fee (you pay only for hosting). Code and customer data live on your server, and you can switch host or developer whenever you like.

Company website

Instead of Wix I recommend WordPress or Next.js

Wix — Poland median60
My WordPress / Next.js — median of 7 builds96
  • Wix The free plan shows Wix ads and can't use your own domain, so a business needs a paid Premium plan. The site can't be exported to another host.
  • WordPress / Next.js Open source. The site belongs to you and you can move it to any host.

Store migration

Instead of PrestaShop I recommend WooCommerce

PrestaShop — Poland median33
My WooCommerce — median of 3 builds95
  • PrestaShop Also open source, so I move your products, customers and orders to the new store.
  • WooCommerce Easier to maintain, with a bigger community and ready-made integrations (payments, couriers, Allegro). I keep your URLs or set up 301 redirects to protect your Google rankings.

Simple website

Instead of WordPress I recommend Next.js

WordPress — Poland median43
My Next.js — median of 4 builds95
  • WordPress A good choice when you often edit content yourself. The admin panel and plugins need regular updates.
  • Next.js Static pages with no admin panel or plugins to update. Open source, and the code is yours.
Market: median of all Polish websites on the platform (HTTP Archive, lab Lighthouse, crawl 2026-08-01). Mine: PageSpeed Insights mobile scores of my demo deployments, measured 2026-06-19–2026-07-06. Same Lighthouse mobile method, 0–100 scale. Source: HTTP Archive Tech Report, Poland: Shopify, Wix, PrestaShop, WordPress.
[02] About me

Six years. Thousands of users. Zero ghosting.

// how I work
You work directly with me, no account managers.
// experience
6+
Years in production, since the first launch in 2020.
// stacks
5
Next.js, WordPress, WooCommerce, Spring Boot and AI integrations (Gemini, Claude).
// concept
Own demo / concept

"I track the results of each launch: load time, visits and real sales. Your numbers count, not my promises."

My approachIT Solutions
// quote SLA
48h
From enquiry to quote. No sales pitches and no middlemen.
// support
2 mo.
Post-launch support included - free bug fixes.

[06] Process

From brief to live.

Your project moves through seven stations. Keep scrolling.

  1. Consultation

    A free 30 minutes. Project goal, budget and your key needs.

  2. Quote

    Fixed price or billing by time worked. Plus a schedule.

  3. Visual design

    A layout sketch first, then a finished design to approve.

  4. Build

    I build in stages and show progress regularly.

  5. Testing

    Tests of behaviour, speed, accessibility and security.

  6. Deployment

    Launch, security certificate and monitoring.

  7. Support

    2 months included. Longer support optional.

Full process step-by-step →

Your project · ready

Quote in 48h. No middlemen.

Free quote →
[04] Live demos

Working websites — not screenshots.

See all demos →

Ten deployments across different stacks. Each opens live and has a real PageSpeed Insights score.

Volta Studio
Creative studioVolta Studio
WordPressElementor
Studio Forma
Business cardStudio Forma
WordPressAstra
Nikodem Plichta
PortfolioNikodem Plichta
WordPressElementor
Maison Élise
Online storeMaison Élise
WooCommerceElementor
Bean & Brew
Online storeBean & Brew
WooCommerceAstraSpectra
Aurea
HealthcareAurea
WordPressBlock theme (FSE)
Headless Woo
Online storeHeadless Woo
Next.jsWooCommerceHeadless
Restauracja
Food & drinkRestauracja
Next.js
Artisan Cafe
Food & drinkArtisan Cafe
Next.jsSanity

PageSpeed Insights (mobile) scores, measured on 2026-06-19, 2026-07-06.

[05] How I work

What you get with me.

Concrete rules of cooperation that apply to every project. No asterisks, no fine print.

Code ownershipEvery project

The code I build is yours. If any paid licenses are ever needed, we always agree on them together.

SupportPost-launch

2 months of support included in the project price. Bug fixes are free, you only pay for new features.

DocumentationStandard

Documentation in plain language, a step-by-step guide and a screen recording of the panel. Come back a year later and you'll still know how to edit the site.

Quote in 48hTo start

Brief → recommendation and quote within 48 hours. No sales decks, no salesperson.

Direct contactAlways

You talk to me directly, no account manager, no queue. Decisions usually within 24 hours.

[07] FAQ

Questions I hear most often.

All questions →

Didn't find your question? Write to me →

I reply within 24 h on business days

Let's talk.

A free 30-minute consultation. I come back with a quote within 48 hours. No sales pitches and no middlemen.

Book a call →kontakt@itsolutionsdz.pl