Trezzo — Full-Stack SaaS Platform
Lukáš Caletka
Trezzo — Full-Stack SaaS Platform
Trezzo is a production-oriented full-stack SaaS platform built as a real product over a long development cycle.
Live: https://trezzo.cz
Product scope
Trezzo combines multiple product layers into one ecosystem:
Social network and creator feed
Digital product creation and sales
Marketplace listings
Auctions / bazaar
Work platform with dedicated profiles
CV Builder and work tools
Messenger, rooms and realtime communication
Calls / communication layer
Affiliate system
Courses
Funnel builder
Manual payments and internal wallet logic
Cyber protection and account security
Full-Stack engineering scope
Frontend
Vue 3
Vite
JavaScript
TypeScript
Angular module work
Responsive UI
Component-based architecture
Route-based product modules
SEO-focused public pages
Production UI debugging
Backend
Node.js
Express-style REST API
MongoDB / Mongoose
PostgreSQL / Prisma
Socket.IO realtime communication
Auth and protected routes
2FA-ready security layer
Password hashing
Manual payments
Wallet/profile balance logic
Modular controllers, services and routes
Product modules
Social feed
Creator profiles
4 account/profile types
Work profiles and separate Work layer
Marketplace
Auctions
Digital products
Courses
Affiliate
Messenger
Rooms and calls
Funnel builder
Cyber protection
Payments and wallet flows
Security and architecture
Trezzo includes security-focused implementation areas:
JWT authentication
Cookie/session handling
Password hashing
Two-factor authentication logic
Protected API routes
User/account separation
Role/profile based logic
Private production secrets excluded from this repository
Screenshots
Social feed
Creator / profile preview
Public share preview
Why this project matters
Trezzo demonstrates the ability to design, build, debug and iterate on a large full-stack SaaS system with many interconnected domains.
This repository is a curated portfolio showcase.
Production secrets, environment files, database dumps and internal backups are intentionally excluded.
Key engineering challenges solved
Multi-domain architecture separation
Authentication and protected route flows
Realtime messaging workflows
Wallet and manual payment logic
User/profile role separation
Public SEO page architecture
Frontend/backend integration
Production debugging and diagnostics
Scalable module organization
Candidate profile
Full-Stack Developer focused on building real products rather than isolated demo projects.
Areas of work:
SaaS development
Product engineering
Frontend + backend architecture
Realtime systems
Authentication/security
UX and user flows
Platform design
About
Production-oriented full-stack SaaS platform featuring social networking, marketplace, messaging, work tools and creator workflows.
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Posted May 24, 2026
Full-stack SaaS platform with social networking, marketplace, and work tools.
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