Xdoom Xdoom

Senior Python Engineer with 6+ years of experience building backend systems, real-time data platforms, and distributed services for fintech, trading, and AI-driven applications.

My work focuses on designing reliable backend infrastructure, market data processing systems, and scalable microservice architectures. I’ve built services for cryptocurrency exchanges, trading analytics platforms, and financial data pipelines that process high-frequency market data from multiple APIs and streaming sources.

In addition to backend and fintech infrastructure, I work with applied AI systems. I build LLM-powered tools, including assistants and analytics workflows using LangChain, LangGraph, and RAG architectures with vector databases. I also have experience fine-tuning models and integrating LLM capabilities into real production systems.

I also have experience developing blockchain infrastructure and smart contracts using Solidity, including trading-related protocols, automation systems, and integrations with exchange infrastructure.

Technically I work across the full backend stack: from system design and asynchronous Python services to cloud deployment and observability.

Core areas of expertise

Python Backend Development

FastAPI • Flask • Async Python • REST APIs • Microservices

FinTech & Trading Infrastructure

Market data pipelines • Trading analytics • Exchange integrations • Real-time systems

AI / LLM Systems

LangChain • LangGraph • RAG • Vector databases • Prompt engineering • Model fine-tuning

Blockchain Development

Solidity • Smart contracts • DeFi protocols • Trading automation

Infrastructure & DevOps

Docker • Kubernetes • CI/CD • Kafka • PostgreSQL • Redis • Cloud platforms