Full-Stack Web & Business Applications Developer
CRM systems, custom web applications, business automation, e-commerce and API integrations — designed, engineered and tested end to end. From database schema to the last pixel.
01 — Selected work
Two flagship projects built independently — with real backends, role-based access, persistent data and automated tests. No mockups, no “coming soon”.
An independently designed, developed and tested CRM for small sales teams: customers, sales opportunities and tasks in one relational SQLite database — with role-based access control enforced server-side, session authentication and a full automated test suite.
A live business website for a Warsaw office-cleaning company: responsive marketing pages, an interactive quote-request form with validation, and a private administration area for managing inquiries, services and content.
Product concepts I am developing as portfolio demonstrations. Each is clearly labeled as a concept — none is a completed client engagement.
Premium automotive showroom & configurator: live vehicle pricing, financing plans and test-drive booking.
Concept briefHeadless e-commerce storefront: catalog API, cart & checkout flow, order management dashboard.
Concept briefSaaS analytics dashboard: KPI cards, funnel visualization, CSV import, role-based views, scheduled reports.
Concept briefKnowledge base & helpdesk: full-text article search, categories, feedback loop, admin CMS.
Concept brief02 — Capabilities
Full-stack ownership: I take a business problem and deliver a working, tested, maintainable system — not a static mockup.
Customer, opportunity and task management with relational data models, role-based access and reporting views that sales teams actually use.
Business-specific web apps built around real workflows — administration panels, internal tools, domain dashboards — from schema to UI.
Server-side logic done properly: server-side validation, transactions, indexed queries, structured error handling and secure configuration.
Removing manual work: automated notifications, status transitions, scheduled reports and clean integrations between tools and data sources.
Storefronts and commerce flows: product catalogs, cart and checkout logic, order management, and payment-gateway integration patterns.
Connecting systems: consuming and designing APIs, webhooks, data synchronization and documentation that other developers can rely on.
03 — Process
We define the business problem, the users and what “done” means. I ask the uncomfortable questions before writing code.
Data model, information architecture and a visual direction you approve before implementation starts. No surprises later.
Working software in increments, with server-side validation, security controls and automated tests from the first feature.
Documentation, deployment guidance, maintenance notes and a clear handover — so the system stays useful after I leave.
04 — About
I build web applications the way I would want to use them: fast, honest and maintainable. My flagship projects — a full CRM and a live business website — were designed, engineered and tested by me end to end, which is exactly how I work with clients.
My strength is the full path: understanding the business process, designing the data model, implementing a secure backend, polishing the interface and verifying everything with tests. I document what I build, so your team is never locked into me.
I work remotely with clients worldwide, in English, and I keep communication simple: clear scope, visible progress, and working software you can click on — not status screenshots.
05 — Contact
One paragraph is enough: what you build, what you need, and when. I read every message and reply personally.
Prefer email? Reach me directly — or send a message through the form and I will get back to you.