Emre Tolga Kaptan

Backend & full-stack developer · Wrocław · open to work

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Emre Tolga Kaptan — Software developer

Skills

Languages and tools at a glance, with the projects that use them.

Languages
Go, Rust, TypeScript, JavaScript, Python, SQL

Backend

  • Go (net/http)
  • Node.js
  • Express
  • FastAPI
  • Django
  • REST APIs
  • WebSocket APIs
  • asyncio
  • JWT
  • Argon2
  • Role-based access

Used at Rainpark Solutions and in t-learn, Homed, LociGraph and QuantAnalyst AI

AI and data

  • RAG
  • NLP
  • LLM workflows
  • PyTorch
  • Transformers
  • sentence-transformers
  • FinBERT
  • LangGraph
  • scikit-learn
  • pandas
  • NumPy
  • OpenRouter
  • OpenAI SDK
  • Prompt engineering

Used in LociGraph and QuantAnalyst AI

Databases

  • PostgreSQL
  • SQLite
  • MongoDB
  • Prisma
  • SQLC
  • Goose

Used at Rainpark Solutions and in t-learn, Homed and QuantAnalyst AI

Frontend

  • React
  • TypeScript
  • React Router
  • Context API
  • Tailwind CSS
  • HTMX
  • Astro

Used at Rainpark Solutions and in Homed, t-learn, LociGraph and QuantAnalyst AI

Desktop

  • Rust
  • Iced
  • PDFium
  • Android

Used in simPl Reader

Tools and cloud

  • Docker
  • Docker Compose
  • Git
  • Linux
  • Vite
  • Axios
  • AWS (S3)
  • Microsoft Azure
  • Jest
  • Go unit testing