ivantim.devIvan Tim Lab

Software Engineer & Consultant. Deep backend, data, LLMs, agents, and web3.

I design and build production-grade systems — web backends, data pipelines, search, and LLM-powered features.

13+ years shipping for startups and enterprises. Remote-first, results-first.

  • Web
  • Data
  • Search
  • Microservices
  • AWS + K8s
  • Web3 (EVM/BTC)
  • RAG/LLM

Principles

  • Working code over presentations
  • Clarity before cleverness
  • Make systems transparent for stakeholders
  • Tests prove behavior, not just mocks
  • Automate the boring; document the sharp edges

Selected Work

NFT marketplace

USA

Sell, buy, and rent NFTs.

  • Designed & shipped NFT search that normalized list prices to USD and sorted reliably at 70M+ items.
  • Custom indexer for ERC‑721/1155 across EVM chains; vendor API enrichment
  • OpenSearch/Elasticsearch for full‑text + numeric sorting by USD
  • AWS EKS + SQS pipelines, microservices
TypeScriptNode.jsOpenSearchPostgresAWSK8sSQSArticle

Web3 Markets Bots

EU

Bots that keep markets healthy: liquidity balancing + safe closing.

    TypeScriptNode.jsAWS

    Dashboards / Leaderboards via On‑chain ETL

    USA

    Data pipelines from subgraphs/Subsquid → Kotlin services → API stats powering UIs.

      KotlinSpring BootPostgresAWSK8sSubsquid

      Writing

      If you want to talk shop or review an architecture, reach out via LinkedIn DMs.

      GitHubLinkedInX (Twitter)MediumCostaBlancaGeeks · Projectsemail

      © 2025 Ivan Tim. Built minimal on purpose.