FreelancePricing
A SaaS platform built for Czech freelancers to manage their entire business workflow in one place. Covers project and client management, AI-assisted price estimation, quote and invoice generation, and a subscription and credits model powered by Stripe. Optimised for the Czech market with CZK currency formatting, ARES business registry lookup, and a bilingual Czech/English UI.
My Role & Activities
- Product design and feature scoping
- Full-stack development (Angular + FastAPI)
- Shared UI component library design
- AI price estimation integration
- Stripe subscription and checkout flow
- PDF invoice and quote generation
- ARES business registry API integration
- JWT authentication with HttpOnly cookie strategy
Technologies
A TypeScript-based framework for building scalable web applications.
A strongly typed language built on JavaScript with better tooling and maintainability.
Utility-first CSS framework for building custom interfaces quickly.
Library for reactive programming built around Observables.
Toolchain and build system for monorepos and larger frontend platforms.
Versatile language widely used for backend services, scripting, and data processing.
Modern Python web framework for building high-performance APIs with automatic OpenAPI docs.
Document-oriented NoSQL database suited for flexible application data.
Payment infrastructure for online transactions, subscriptions, and billing workflows.
JavaScript runtime for backend services, tooling, and automation.
Architecture and delivery context
Problem
Freelancers in the Czech Republic lack a single tool that connects project scoping, client data, price estimation, and invoicing in one coherent workflow. Existing tools are either too generic, lack local market support (CZK, ARES), or bundle features that a solo developer doesn't need.
Approach
FreelancePricing is a focused SaaS product that covers the full freelance business cycle: from a new project estimate through a quoted proposal to a paid invoice. An embedded AI model assists with price estimation so freelancers can calibrate rates against project complexity rather than guessing.
Stack
- Frontend: Angular SPA in an Nx monorepo with a shared UI component library, consistent tokens, dark mode, and a bilingual translation system
- Backend: Python FastAPI monolith with MongoDB and async I/O
- PDF export, quote-to-invoice conversion, and Stripe checkout integrated into a single deployable service
- OpenAPI-driven TypeScript type generation between backend and frontend
- Google OAuth for sign-in
Key Features
- AI price estimation — describe a project and get a structured cost breakdown
- Client CRM with ARES (Czech business registry) lookup for automatic company data fill-in
- Quote management with PDF export
- Invoice lifecycle (draft → issued → paid) with QR payment codes
- Subscription and credits model: free tier and paid plans via Stripe checkout
- Shared UI library with custom components
- Dark/light mode, Czech/English i18n