About
I build products end-to-end — and I run them, too.
I'm Dan, a full-stack developer based in Brașov, Romania, working as an independent software studio. I don't just prototype — I build and operate production systems: an e-commerce platform that syncs real orders across three marketplaces, a marketplace with its own automated offer engine, and a multiplayer game with a live backend. Most of what I build started as a problem in my own business first.
Flagship work
A full e-commerce operations platform
What began as the backend for my own store grew into a complete operations platform. It runs the storefront itself, but also everything behind it: order, price and stock sync with eMAG, Temu and Trendyol every two minutes, a pricing engine that accounts for commissions, VAT and shipping fees per channel, automated Romanian tax filing through ANAF's e-Factura/SPV system and Oblio, Sameday courier integration, and an AI suite that generates ad banners, videos and blog posts from the product catalog.
View the platform →CerOfertă — a request-first marketplace
CerOfertă flips the usual price-comparison model: a shopper asks for a price once, and each seller gets exactly one shot at a best offer — no bidding wars, no repeated follow-ups. If sellers don't respond in time, a background job auto-generates an offer from synced market data or a live Google Shopping fallback, so no request goes unanswered. A separate automation layer recruits new sellers and writes their own outreach.
View the platform →SlippyBoss — a multiplayer arcade game
A battle-arena game in the "slither" tradition: players grow, fight and try to outlast real opponents and AI bots in a live arena. It runs on a PlayFab backend for player progress and inventory, and Firebase for authentication and real-time chat, with 12 seasons of Battle Pass content and daily quests keeping matches worth returning to. Published on Google Play.
View the game →Timeline
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20XX
Started building web applications professionally, focused on Laravel and PHP.
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20XX
Built and launched an e-commerce store end-to-end, from catalog to checkout to payments.
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20XX
Grew the store's backend into a full e-commerce operations platform: eMAG/Temu/Trendyol marketplace sync, ANAF/Oblio tax automation, Sameday courier integration and an AI-driven marketing suite.
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20XX
Built CerOfertă, a request-for-quote marketplace with an automated offer engine and AI-driven seller recruitment.
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20XX
Picked up Unity and shipped SlippyBoss, a multiplayer arcade game with a PlayFab backend and Firebase real-time chat.
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Now
Building danmihaita.com as the long-term home for all of the above.
What I work with
Full-stack web development
Laravel, PHP, relational databases, queues, caching — from a single feature to a full multi-service platform.
E-commerce & marketplace operations
Multi-marketplace sync (eMAG, Temu, Trendyol), per-channel pricing engines, warehouse and goods-receipt management.
Romanian tax & invoicing automation
ANAF e-Factura/SPV integration, Oblio e-invoicing, automated VAT and fiscal declarations (D212/D300/D390/D394).
API integration
Payment processors (Stripe), couriers (Sameday), marketplaces, and external data APIs (e.g. DataForSEO/Google Shopping).
AI-assisted product features
Integrating OpenAI, Gemini and Claude for ad creative, blog content, SEO metadata and review synthesis.
Unity multiplayer game development
Live multiplayer games with a PlayFab backend, Firebase auth/real-time chat, and IAP + rewarded-ad monetization.
Now building
A multiplayer Unity game (SlippyBoss), a full e-commerce operations platform, a request-based marketplace, and this website.
View all products