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gokhanjs/README.md

Hi, I'm Gökhan 👋

Senior full-stack engineer based in Türkiye. I build multi-tenant B2B/B2C products end to end with PHP (Laravel, Symfony), TypeScript/Node.js and React/Next.js, from schema design to production.

Currently @ Baras Global, where I work on:

  • A multi-tenant hotel booking platform used by about 100 hotels, with a Channex channel-manager integration (OTA sync over queue jobs and webhooks)
  • A standalone virtual POS gateway in Symfony: 3-D Secure flows for 11 banks and payment providers, idempotency keys, signed callbacks and reconciliation
  • Accounting automation: LLM-based extraction of receipts, bank statements and Z reports sent over WhatsApp
  • A collections microservice, plus fleet and vehicle rental systems
  • Docker-based deployments, CI/CD with GitHub Actions, and observability with OpenTelemetry and Sentry

Open to senior full-stack and backend roles, as well as contract work.

Stack

  • Backend: PHP 8 · Laravel · Symfony · Node.js · Fastify · TypeScript · REST · queues · webhooks
  • Frontend: React · Next.js · TypeScript · TanStack Query · Zustand · Tailwind
  • Data: PostgreSQL · PostGIS · MySQL · Redis
  • Testing: PHPUnit · Pest · Vitest · Testing Library · Playwright
  • Infra: Docker · Linux · Nginx · Supervisor · GitHub Actions · OpenTelemetry · Sentry
  • AI: Claude, OpenAI and Gemini APIs

I build the component library and ship production UI without a separate design handoff.

Reach me

Pinned Loading

  1. postgis-geo-service postgis-geo-service Public

    Multi-tenant geospatial microservice: proximity search, geofencing and road routing on PostgreSQL/PostGIS, with tenant isolation enforced by row-level security

    TypeScript

  2. gjs-select gjs-select Public

    A feature-complete, accessible Select for React & shadcn/ui — single, multiple & tags modes, built-in search, virtualized lists. Install by copy-paste with the shadcn CLI.

    TypeScript 2 1

  3. hotel-booking-engine hotel-booking-engine Public

    Hotel distribution API in .NET 10: rate plans, availability and restrictions (ARI) with a real-time pricing engine. PostgreSQL, Redis, Docker, k3s and GitHub Actions CI/CD.

    C#

  4. laravel-utilities laravel-utilities Public

    Custom Laravel model-translation pattern trait-based, separate translation tables, no third-party packages required

    PHP