OfertaSuksesi — Kosovo's Modern Classifieds Platform

Overview

OfertaSuksesi is Kosovo's modern classifieds platform — built from scratch as a microservices architecture with four independent services communicating via REST APIs and Redis pub/sub. The platform serves thousands of users and listings in the Albanian language with instant search, spam protection, company profiles, and built-in monetization.

The challenge was clear: Kosovo's online classifieds space was dominated by outdated platforms with poor user experience, no spam protection, slow search, and limited tools for businesses.

Challenges Solved

1. Search Performance

Problem: PostgreSQL full-text search was too slow for real-time filtering across thousands of listings.

Solution: Integrated Meilisearch as a dedicated search engine — instant results with typo tolerance, faceted filtering, and relevance ranking. Sub-50ms response times.

2. Spam & Fraud

Problem: Open platforms attract spam, fake listings, and scammers with no automated detection.

Solution: Built a configurable spam detection engine scoring listings on regex patterns, keyword blacklists, and phone analysis. Suspicious listings auto-queue for review.

3. Image Processing

Problem: Users upload large, unoptimized images causing slow page loads and bandwidth waste.

Solution: Dedicated image service processes every upload through Sharp — generating thumbnail, medium, and full-size WebP variants automatically. Served via CDN subdomain.

4. Monorepo Complexity

Problem: Four services sharing types, components, and templates could easily drift out of sync.

Solution: Turborepo with pnpm workspaces keeps everything unified — shared packages, consistent TypeScript config, and coordinated builds across all services.