# mjankowski.expert

> Mariusz Jankowski — Product Architect. 26 years across the full digital product lifecycle (animation → graphic design → UX/UI → complete builds). Builds his own digital products and helps founders and businesses with websites, web apps, mobile apps, AI agents and product audits. Based in Warsaw, Poland, working async worldwide.

Key facts:
- What he builds: websites and web apps; mobile apps; AI agents and integrations; product audits and technical advisory
- Own products: SmartKcal, LinguPix, RadarM, lead.watch, SizzleAir, TrustBar
- Client work: online stores, coworking spaces and marketing agencies; e-commerce platform with 99.9% uptime since 2020
- Wrote „Projekty w Webflow” — a Polish-language Webflow tips ebook (2023); past buyers regain access at https://mjankowski.expert/webflowbook
- Contact: a direct email (no forms, no sales calls)

## What I Build
- [WEBSITES & WEB APPS](https://mjankowski.expert/#offer): A custom website that loads fast, looks premium and turns visitors into clients. Designed, built and launched by one person, end to end.
- [AI AGENTS & INTEGRATIONS](https://mjankowski.expert/#offer): AI that does real work in your product. AI assistants and business process automations built into your apps and your daily work.
- [MOBILE APPS](https://mjankowski.expert/#offer): Your product in people's pockets. Custom native iOS and Android apps, from first sketch to the App Store.

## Projects
- SmartKcal (Own Product): Track your calories effortlessly with an AI-powered app. — https://smartkcal.app
- LinguPix (Own Product): Swipe to Remember: language learning for kids aged 3-7. — https://www.lingu-pix.app
- RadarM (Own Product): A Chrome extension that checks an apartment before you buy it. — https://www.radarm.pl
- lead.watch (Own Product): A downloadable n8n blueprint that turns Reddit into a lead engine. — https://www.lead.watch
- SizzleAir (Own Product): A tiny thermal assistant for MacBook Airs. — https://www.sizzleair.app
- TrustBar (Own Product): Verified TrustMRR metrics. — https://www.trustbar.app
- Fit Diet Catering (Client Work): Diet catering ordered online, delivered across the Netherlands. — https://www.fitdiet.nl
- Cowork by Memos (Client Work): Coworking, desks and conference rooms. Booked online. — https://www.memos.work
- SpaceAds (Client Work): A website for a marketing agency, designed to stand out. — https://space-ads-01b17e6efe931a0057ba35b1c77a5.webflow.io
- Tigers (Client Work): A website for a digital marketing agency, from social to SEO. — https://www.tigers.pl

## Webflow Book
- [Projekty w Webflow](https://mjankowski.expert/webflowbook): Polish-language ebook of practical Webflow tips and workshop-style walkthroughs, first released in February 2023 (launched on radarpremier.pl, a Polish Product Hunt; the original sales page is gone). Past buyers verify their purchase email on this page to regain access to the guide in Notion. Not on sale at the moment.

## Wallpaper Pack
- [Liquid Lava Gradient Wallpaper Pack](https://mjankowski.expert/en/wallpapers): Liquid Lava Gradient Wallpaper Pack: 12 original dark colorways based on the flowing gradient from mjankowski.expert. Each purchase includes 24 PNG wallpapers: 12 desktop files at 6016×3384 and 12 mobile files at 1320×2868. Subtle film grain keeps transitions smooth on large monitors and OLED displays. The $15 personal-use pack includes lifetime access to future colorway updates and will be sold through Polar.

## Contact
- [Contact section](https://mjankowski.expert/#contact): direct email on the site
- [X / Twitter](https://x.com/MarJani81)
- [LinkedIn](https://www.linkedin.com/in/jankowskimariusz/)

## Optional
- [llms-full.txt](https://mjankowski.expert/llms-full.txt): full site content in markdown