Websites & web apps
Large-scale websites and complex online services in Next.js and React — fast, accessible and built to scale.
Technology studio · Lowicz
Digital solutions that define the future.
I design and build large-scale websites, complex online services and applications — slower, but with precision. Quality over quantity, attention to every detail and the latest standards in IT, WEB and AI.
Hand-written code, no templatesTop-tier qualityPost-launch support
3Live platforms built
20+Apartments under one booking system
2Brands managed from one panel
24/7Self-service & online payments
Quality, not quantity. Slower, but with precision.
I don't race against the clock or chase project counts. I treat every build as craft — refined in detail, built on the latest standards, and ready to set the direction rather than follow it.
Hand-written codeLatest standardsAttention to detailPerformance & accessibility
What I do
Services built for real business
From the first conversation to launch and care — all in one pair of hands.
Booking & payments
Online booking systems, Stripe integration, self check-in and automated confirmations.
Integrations & APIs
Hostify, PriceLabs, channel managers and rental portals wired into one coherent data flow.
Admin panels & dashboards
Panels to manage content, clients and reservations — like the multi-brand Cockpit.
Automation & AI
Process automation and AI integrations that save hours of repetitive work.
SEO & performance
Core Web Vitals, structured data, hreflang and architecture built for search engines and AI answers.
Selected work
Work that speaks for itself
Four projects, one standard of craft. I designed and built each one from the ground up.
Live
Short-term rental
Chill In Lodz
chillinlodz.plA booking platform for 20+ luxury apartments in central Lodz. 24/7 self check-in, Stripe payments, Hostify sync and Booking.com guest ratings.
Next.js 15React 19StripeHostifySQLite
Fully automated bookings and check-ins.Visit
Live
Apartments & SPA
Pietryna Apartments
pietrynaapartments.plTwo 100 m² apartments with a private sauna and jacuzzi on Piotrkowska street. A bilingual site, a voucher system and online booking.
Next.js 15next-intlStripeMotion
A home SPA sold online, in two languages.Visit
Live
Team building / event
W Cieniu
grawcieniu.plA site for a unique corporate team-building game created by contestants of „The Traitors” (TVN). A static one-pager tuned for SEO and Core Web Vitals — structured data, Open Graph and lightning-fast loading.
HTML5CSS3JavaScriptSEOSchema.org
A lightweight, lightning-fast site built to rank.Visit
Coming soon
Smart locker · 24/7
Locky Lodz
Locky Łódź — wkrótceA self-service 24/7 luggage storage in central Lodz. Lockers opened by code or QR, monitoring and online payment. Currently preparing for launch.
Next.js 15TypeScriptTailwind 4
A brand ready to launch — code, content and SEO.
In-house tooling
Cockpit — one panel to manage everything
A custom admin panel that brings multiple brands together in one place. Today it manages Chill In Lodz and Pietryna Apartments.
- Multi-brand — Switch between brands with one click in the top bar.
- Clients from Hostify — Pulls every guest from reservations and deduplicates by phone and e-mail.
- Reservations & invoices — All successful payments with filters; invoice flags and refunds in one view.
- Secure login — Password + 2FA (TOTP), CSV export and an audit log.
Coming next
I'm building my own CMS for my clients
A system where my clients publish content, manage their offer and update pages themselves — without touching code. Simple to use, designed around real needs, not a feature checklist.
Phase 1Content editingA visual, real-time editor for pages and sections.
Phase 2Multi-portalManage multiple sites and brands from a single account.
Phase 3AI & automationAI-assisted content suggestions, translations and publishing.
Want to be among the first to try it?Ask for early access
Approach
Craft over haste
Four stages where quality matters more than speed.
01
Discovery
I learn the goal, the users and the business context before writing a single line of code.
02
Design & architecture
I design the structure, interface and data model with scale and future growth in mind.
03
Craft
I build by hand, caring about every detail, performance, accessibility and clean code.
04
Launch & care
I ship, measure the results and keep developing the project long-term.
About
Digital Solutions — Daniel Jankowski
I'm a builder and caretaker of digital products based in Lowicz. I design and build websites, online services and applications for the rental, services, events and e-commerce sectors — with a focus on quality, detail and the latest standards in IT, WEB and AI.
Digital Solutions is my first company and a way of working in one: slower, but with precision. I believe well-designed technology doesn't just work — it sets the direction and creates an edge.
Technologies I work with
Next.jsReactTypeScriptNode.jsTailwind CSSStripeSQLiteREST & APIHostifyPriceLabsAI / LLMSEO
Contact
Let's build something that sets the direction
Have a project, an idea or an existing site to grow? Drop me a line — I usually reply within 24 hours.
E-mailkontakt@digitaljankowski.pl
LocationŁowicz, Polska
Response timeUsually within 24 hours
Contact+48792004114Ready for a new level of quality?
Let's talk about your project. No strings — a good idea first, an offer second.