Hi, I'm Gabriel Antonescu

A complete ecosystem for a custom Counter-Strike 1.6 game mode (CHAOS: HACKED WAR): a public website, player platform, store with payments, VIP & Battle Pass systems, a REST API and the in-game server logic. A Turborepo monorepo pairing a Next.js/React front-end with a Fastify + Prisma + MySQL back-end and 22 Pawn (AMX Mod X) modules for the game server.

• Turborepo monorepo: Next.js 16 + React 19 front-end, Fastify + Prisma + MySQL API
• Game server: 22 AMX Mod X (Pawn) modules — 40 balanced abilities, events & boss rounds
• Unified password-protected accounts for Steam and non-Steam players (anti-spoof)
• Economy: XP/CP/CC currencies, in-game shop, currency exchange, Battle Pass & VIP tiers
• Stripe payments, Steam OpenID auth, HMAC-secured server ↔ API bridge
• RBAC admin panel + immutable audit logs; Dockerized local CS 1.6 test server

End-to-end SaaS platform for digital wedding, baptism and civil-marriage invitations. A Turborepo monorepo with a Next.js frontend and a NestJS backend, featuring a real-time RSVP system, a live countdown, a seating plan, Excel export of confirmations and Stripe payments.

• Real-time RSVP system with an admin dashboard
• Online payments with Stripe + payment modes and manual activation
• JWT + Google OAuth authentication (Passport), roles and secured access
• Multiple fully customizable invitation models (texts, photos, locations)
• Media on AWS S3, monitoring with Sentry, Excel export with ExcelJS

A premium website for a dental clinic in Brăila, built with Next.js 15, TypeScript, Prisma and PostgreSQL. It features a real online booking system with a live availability engine and race-condition-safe slots, plus a full admin CRM/CMS — appointments, calendar, clients, services, pricing, team, availability, reviews, pages and media.

• Real booking flow (service → doctor → date → time) with a live availability engine
• Race-condition-safe slots: partial unique index + transaction — no double-booking
• Full admin CRM/CMS: appointments, calendar, clients, services, pricing, team, availability, reviews, pages, media
• JWT (httpOnly) auth + read-only demo account; phone validation to E.164
• Complete SEO (metadata, canonical, OG, sitemap, robots, JSON-LD) + GDPR pages
• Media on Cloudflare R2 (S3), deployed on Vercel + Neon PostgreSQL

Event organization and management app, used in production. NestJS backend with a Turso database, deployed on Render. Clean interface for planning and tracking events.

• Live in production at agenda.chapter-one.ro
• NestJS backend + Turso database (SQLite edge)
• Continuous deployment on Render
• Documented REST API, validation with class-validator

A modern academic-services platform built with Next.js, React and Tailwind CSS, focused on performance, responsive design and SEO.

• Responsive design optimized for desktop and mobile
• SEO-friendly structure and high performance
• Professional presentation of academic services

A premium editorial website for a wedding & event photographer, built with Next.js 15, TypeScript, Tailwind CSS and Supabase. Fully content-managed through a custom admin panel — portfolio, blog, services, pricing, FAQ and settings — with secure auth, a read-only demo mode and complete SEO.

• Custom admin CMS: full CRUD for portfolio, blog, services, pricing, FAQ and settings
• Supabase (PostgreSQL + Auth + Storage) with Row Level Security on every table
• Read-only demo mode, middleware-protected admin routes, server-side upload validation
• Complete SEO: dynamic metadata, JSON-LD, sitemap, robots, GDPR pages

A premium presentation website for JAJA Pub, a jungle-themed pub in Brăila. Built with Next.js 15, React 19, TypeScript and Tailwind CSS, recreated pixel-close to a provided mockup — warm, editorial and energetic, with complete pages, real verified data and full SEO.

• Faithful recreation of the provided mockup — premium, warm, editorial
• Original JAJA identity kept intact (logo + "Welcome to the jungle")
• Real, verified business data; phone-based reservations
• Full SEO: metadata, canonical, OG/Twitter, sitemap, robots, JSON-LD (BarOrPub + Restaurant)
• Local SEO for Brăila, WebP images with next/image, fully responsive & accessible

A premium presentation website for 104 Coffee, a specialty coffee shop in Brăila. Built with Next.js 15, React 19, TypeScript and Tailwind CSS, recreated pixel-close to a provided mockup — cinematic, editorial and warm, with complete pages, legal pages and full SEO.

• Faithful recreation of the provided mockup — premium, editorial, cinematic
• Complete pages + legal pages (privacy, terms, cookies) with consent banner
• Full SEO: metadata, canonical, Open Graph/Twitter, sitemap, robots, JSON-LD (CafeOrCoffeeShop)
• Local SEO for Brăila, embedded Google Map on the contact page
• Optimized WebP images with next/image, next/font, fully responsive & accessible

Creation and management of an active Facebook community, with content strategy, audience growth and digital communication.

• Content strategy and publishing plan
• Audience and engagement growth
• Community moderation and communication

Academic papers, dissertations and research projects across multiple disciplines: law, criminology, finance, management and communication.

• Law and legal sciences
• Criminology and security studies
• Finance, economics and management