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millerserhii/README.md

Sergej Müller

Backend & Web3 Infrastructure Engineer

I build data-heavy backend systems and blockchain analytics platforms, with a focus on the Bittensor ecosystem — from running archive nodes to indexing on-chain data into time-series databases at scale.

  • Lead engineer at taomarketcap.com — analytics platform for the Bittensor network
  • Co-founder of SevenBrains — AI video production company
  • Based in Germany
  • Contact: millerserhii@gmail.com

Tech Stack

Rust TypeScript Python Next.js PostgreSQL TimescaleDB Kubernetes AWS Substrate

Selected Work

  • Blockchain indexing pipeline: on-chain data ingested into PostgreSQL/TimescaleDB hypertables with compression policies, 2+ TB of time-series data migrated without downtime
  • Bittensor archive node infrastructure on AWS (ALB, CloudFront, WebSocket RPC)
  • Frontend performance engineering on Next.js: SSE batching, Long Task profiling, real-user metrics

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  1. aws-drf-api-backend aws-drf-api-backend Public

    Python