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About

Computer engineer building backend, AI and search systems.

I've built software since 2019, and since 2025 I've also taken on freelance work on new products and existing systems.

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I'm a computer engineer based in Izmir. I've developed high-traffic APIs and AI-powered products in corporate teams. Alongside that, I take on freelance projects building new products and improving existing systems.

I'm strong in two kinds of work: backend, APIs and AI/RAG systems with Node.js — chatbots, search infrastructure and data services; and WordPress/WooCommerce sites with e-commerce integrations for small and mid-sized businesses.

How I work: clear scope, visible progress and production-ready delivery.

Experience

Where I’ve worked

  1. 2025 – present

    Software Engineer

    Fintech & restaurant tech

    • Restaurant ordering platform: Backend of a multi-branch ordering system. Loyalty and coupons; PayTR, iyzico, Stripe and Dojo payments; inventory, branch management, QR table ordering and table checks; notifications and POS integration.
    • Licensing and subscription service: Feature-based pricing, subscription lifecycle, licence key verification, recurring payments with Stripe and iyzico, invoicing.
    • Crypto presale platform: Sales, bonus and support modules, request logging; a tracking service that watches Ethereum and BSC wallets and reports incoming payments.
    • Sales analytics API: Sales by country and currency, average deposit, conversion rate and marketing ROI reports.
    • Shared infrastructure: The NestJS starter the team's services are built on (sessions, authorization, request logging, admin) and a content API.

    NestJS, TypeScript, PostgreSQL/PostGIS, Redis, AWS, Docker

  2. 2023 – 2025

    Software Engineer

    Juphy · Oregon, US (remote)

    Node.js backend for a Shopify-integrated sales chatbot; OpenAI fine-tuning and RAG architecture; MongoDB + Weaviate hybrid search; order, sales and analytics endpoints.

  3. 2022 – 2023

    Software Engineer

    Matriks Bilgi Dağıtım Hizmetleri · Istanbul

    Node.js + Fastify microservice APIs for Borsa Istanbul real-time market data (millions of requests a day); Cassandra, Redis, Memcached caching; MQTT streaming data.

  4. 2019 – 2021

    Business Analyst

    CBOT · Istanbul

    End-to-end project delivery for 20+ clients on an AI chatbot platform: requirements, conversation flow design, testing (Postman, Selenium) and documentation.

Education

  • 2019 – 2021
    MSc Computer EngineeringBeykent University, Istanbul
  • 2012 – 2017
    BSc Computer EngineeringBeykent University, Istanbul
  • 2022
    Full Stack BootcampPatika.dev / Logo Cyber Security and Network Technologies

Tech stack

Capability map

/ Backend

  • Node.js / TypeScript
  • Fastify · Express · Koa · NestJS
  • REST APIs & microservices
  • GraphQL
  • MongoDB · PostgreSQL · Cassandra
  • Redis · Kafka · MQTT

/ AI & search systems

  • OpenAI / LLM integration
  • RAG architectures
  • Hybrid search (MongoDB + Weaviate)
  • Model fine-tuning
  • Chatbots & conversation flows
  • Classification algorithms
> focus: high-traffic APIs, AI-powered products and hybrid search.

/ Web & E-commerce

  • WordPress · WooCommerce
  • Shopify app integrations
  • Next.js & React
  • Payment gateway integrations
  • Loyalty & QR table-ordering systems
  • Crypto purchase & statistics services