From HTML/CSS/JS to React with Vite, Tailwind and Supabase — full applications live in production. Responsiveness, animations and attention to UX detail at every step.
About me
I build complete web applications (React, Supabase, Tailwind) — from idea to a live production deployment. Hands-on experience from a Toyota & Lexus dealership environment gives me what no course teaches: an understanding of business processes and working with real clients.
Google Sheets, Apps Script and SQL — automating repetitive tasks and building simple tools that genuinely save time.
Coordinating vehicle outfitting, deadline control and information flow between sales, service, warehouse and logistics — every day, in a dealership environment.
Status tracking, operational spreadsheets and efficient data flow between departments. Excel and Google Sheets as everyday tools.
Skills
HTML · CSS · JS · React
Responsive websites, DOM, animations — and full React apps with Vite, Tailwind and Framer Motion live in production.
SQL / Supabase / Sheets
Databases (PostgreSQL via Supabase), queries, operational spreadsheets, automation with Apps Script.
Automotive & Processes
Coordinating vehicle outfitting, deadlines and communication between sales, service and logistics.
CRM / Reporting / Excel
Status tracking, operational spreadsheets, data analysis and tidying up daily processes.
WordPress / WooCommerce
Live deployments — product catalogues, templates, forms and brand-focused optimisation.
Networks / IT Systems / Support
Operating systems, computer networks, hardware and end-user environment support.
Currently developing
React already proven in commercial deployments — now I'm going deeper: TypeScript, advanced React patterns and backend with Supabase/PostgreSQL.
Typed React, interfaces, generics — safer code at scale.
Custom hooks, Context, re-render optimisation, architectural patterns.
Advanced queries, RLS in Supabase, relational structures and views.
Custom endpoints, integrations, authentication and a full backend workflow.
Experience & education
Work experience
Vehicle Outfitting Specialist
Toyota & Lexus Romanowski · KrakówOperational ownership of the entire Toyota and Lexus vehicle preparation and outfitting process — from deadline control and accessory flow to coordination between sales, service, warehouse and logistics. In parallel, designing and developing operational spreadsheets that sped up reporting and the flow of information between departments.
Junior Customer Advisor
Holding1 / PGD · KrakówCustomer service and CRM systems in a dealership environment — updating sales data, supporting communication between the customer, sales and service. First experience with automotive processes and the day-to-day tools of a showroom.
Assembly Worker
Level One Uitzendbureau · Emmeloord, NLAssembly of electronic components in a production environment — following technical documentation with full quality control at every stage. Working abroad (the Netherlands) built independence, adaptability and ownership of my own process.
Education
Computer Science — engineering degree
WSB-NLU · Nowy SączA programme combining IT systems, programming, data analysis and cybersecurity — alongside a full-time automotive job.
IT Technician
ZS im. Wincentego Witosa · Sucha BeskidzkaOperating systems, computer networks, hardware, end-user environment.
Projects

Jakub Mytyl — Web Development
My own service brand — designing and building websites and web apps for small businesses and brands. From WordPress sites (like wiorko.pl) to full React applications with a database and admin panel. The service site is in the works — in the meantime, feel free to reach out below.
wiorko.pl
A website for a family-run carpentry workshop — from zero to a live deployment. WooCommerce product catalogue, quote request forms and a consistent UI tailored to the brand. A real client with real requirements.
"Great cooperation from day one — the website is exactly what we needed, and on top of that ongoing maintenance, moderation and quick changes whenever we need them."
— Client, Wiórko Carpentry Workshop
A family-run carpentry workshop operated purely on word of mouth — with no website, there was no way to showcase past work or take a quote request without a phone call.
A full WordPress deployment: a WooCommerce product catalogue, a quote request form, a responsive UI matching the brand's craftsmanship feel, plus domain/hosting setup and basic SEO.
The business is now discoverable on Google, and customers can browse the offering and send a request online. I still maintain the site — moderation and ongoing changes on the client's request.

AutoFlow — Release Plan
An operations dashboard for a Toyota & Lexus dealership — a weekly vehicle release plan, statuses, filtering between showrooms and a detailed vehicle view. Built from scratch in plain HTML/CSS/JS, no frameworks.
The vehicle release plan at the Toyota & Lexus dealership lived across several spreadsheets and verbal hand-offs between departments — nobody had a full picture of the week without manually checking each one.
A dashboard built from scratch in plain HTML/CSS/JS — a weekly release plan broken down by day, vehicle statuses (ready / pending), filtering between the Toyota and Lexus showrooms, and a detailed per-vehicle view by VIN.
One screen instead of several spreadsheets. Sales and service see a vehicle's status instantly, without asking around — and a bottleneck in the release plan shows up before it becomes a real problem.
Frontend / Automotive Portfolio
A dark, dashboard-style one-pager built from scratch in plain HTML/CSS/JS — no frameworks. Custom cursor, animated orbs, scroll progress, ghost numbers, 10 easter eggs and full responsiveness.
Portfolio Easter Eggs
10 hidden interactions in plain JS — a Canvas game, a Matrix breach, secrets in DevTools. A showcase of the Canvas API, DOM Events and CSS Animations.
2D Platform Game
A 2D Canvas game — learning from the inside out: game loop, collisions, character physics and hand-built level structure. No tutorials, just documentation and experiments.