Web developer based in Warsaw. I build small SaaS products and take on freelance work in automation, integrations, and custom internal tools.
Work.
Three side projects I run myself. All free to use, all built and maintained from scratch.
toolprime
Free browser tools for text processing, data conversion, formatting, and other dev utilities. Runs entirely client-side.
Next.jsTypeScriptTailwindtoolprime.appinvoicify
Browser tools for freelancers: invoicing, VAT, currency conversion, and country-specific tax info across 35+ countries.
Next.jsTypeScriptTailwindinvoicify.devpassmycert
Daily PMP and AWS Solutions Architect practice via Telegram bot. Spaced repetition for missed questions, plus full mock exams.
Telegram Bot APIPythonPostgreSQLpassmycert.app
Services.
What I take on for freelance and contract work.
Automation
Scripts and pipelines for repetitive operations. Cron jobs, scheduled syncs, file processing, data transforms.
Internal tools
Custom apps for your team. Dashboards, admin panels, workflow tools. Built lean, hosted on your infrastructure.
Integrations
API work between business systems. Zoho Suite (CRM, Books, Inventory), custom webhooks, two-way syncs, data migrations.
E-commerce
WooCommerce, CS-Cart, IdoSell. Extensions, integrations, migrations, performance work.
Web tools
Public web apps, similar to Toolprime or Invoicify. Focused, browser-based, no backend.
Contact.
Email me about your project. I usually reply within a day.