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Amanuel Siyum

@amanuelsiyum

Backend Software Engineer at ChiSquared Technologies building a live betting platform for 21,000+ users with on-chain settlement.

South Korea

Message

At ChiSquared Technologies, I built and shipped a live betting platform serving 21,000+ users, with a React and TypeScript frontend, a Python and FastAPI backend, and on-chain settlement through smart contracts.

During a live production outage, I traced the cause across the backend, database, and blockchain, then paused user transactions to protect funds. No funds were lost.

At DNSEver Inc. / Probit Global Exchange, I built a payment platform integrating 10+ providers and a Redis pub/sub notification system that distributed 50,000+ daily messages with 99.9% delivery.

I also reduced API latency from 200ms to 50ms and built a WebSocket server for live trading. In my Gridiron Playbook project, I built a football game with an AI opponent and live commentary using a local Qwen model via llama.cpp.

Experience

Work history, roles, and key accomplishments

Current

Backend Software Engineer

Current

ChiSquared Technologies

Sep 2025 - Present (1 year 1 month)

Built and shipped a live betting platform serving 21,000+ users with React/TypeScript frontend, Python/FastAPI backend, PostgreSQL, and WebSockets; bets settle on-chain via smart contracts. Led incident response during a live production outage, built an admin control panel, and added health monitoring and alerting with zero-downtime deployment.

React TypeScript Python fastAPI PostgreSQL WebSockets Smart Contracts Solidity Claude Code AWS Docker Kubernetes

Backend Software Engineer

DNSEver Inc. / Probit Global Exchange

Sep 2022 - Sep 2025 (3 years)

Built a payment platform integrating 10+ providers on Node.js microservices with PostgreSQL and Redis, deployed on AWS/Docker/Kubernetes. Built a Redis pub/sub notification system, cut API latency from 200ms to 50ms, and built a WebSocket server for live trading with zero-downtime CI/CD.