Web app
A production-oriented online store for the Romanian and EU market (shown under a fictional brand): storefront with typo-tolerant search, promotions, multi-warehouse stock, checkout with card, cash on delivery and bank transfer, returns, SEO built in, a REST API for mobile apps and a role-based admin panel.
A complete marketplace-ready store: from browsing and search to cart, coupon, checkout, order processing, refunds and returns — all running end to end against a real PostgreSQL database. The client's brand, domain and company data are replaced in this presentation; the screenshots come from an anonymised copy with generated demo data (84 products, 71 customers, 260 orders).
Argon2id passwords, hashed session tokens, lockout after failed logins, rate limiting, CSRF checks, input validation everywhere, sanitised HTML, re-encoded uploads, formula-safe CSV exports; consent-based analytics, self-service data export and account deletion.
Case study
A retailer needed a store that could grow into a marketplace without a rewrite: fast search over a large catalogue, promotions that respect EU price-display rules, stock that never oversells across warehouses, and SEO strong enough to compete with the big Romanian players — while keeping card data off its servers.
One Next.js codebase with strictly separated layers: pages, server actions and the versioned REST API all call the same domain services (catalog, pricing, search, cart, orders, inventory, returns), so the backend is ready for mobile apps. Money is stored in integer minor units with VAT derived per line; search runs inside PostgreSQL (full-text plus pg_trgm) behind a provider interface; stock reservations use row-level locks; payments, couriers, e-mail, storage and AI sit behind adapters that switch on with environment variables. A Postgres job queue drives e-mails, repricing and abandoned-cart reminders.
The full core runs end to end — browse, search, cart, coupon, checkout, order, admin processing, refund and return — with unit and integration tests for pricing, search, sanitising, CSV safety, overselling, refunds and order transitions. External services switch on through configuration, and the admin shows exactly which integrations are still missing.
Architecture, data modelling, backend and frontend development, search and pricing engines, payments and shipping integrations, SEO, security, admin panel, testing and documentation.
A complete digital platform for a motorsport-themed bar (demo with a fictional brand): QR table ordering with a live bar dashboard, reservations, events, loyalty points and rewards, race-weekend predictions, a pub quiz, community features and eight browser games.
We can build a project like this around your goals, content and budget.
