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serejke/README.md

Hey, I'm Sergei

I work on backend-heavy systems around trading infrastructure, blockchain protocols, and developer tooling.

2024 – now — built a Solana trading stack from scratch inside a private fund: sub-100ms market data ingestion, execution systems, backtesting, and quant research infrastructure over 40TB+ of historical chain data (Rust, Solana Geyser gRPC, TypeScript, Go, Python, ClickHouse, Kafka, Parquet, Postgres, Grafana, CatBoost). Hired the engineering team from zero.

2023 — protocol design and implementation (Rust, Solidity, TypeScript) around intents, solvers, and cross-chain messaging at Khalani. Built the Cardano ↔ EVM general message passing system on top of Hyperlane — Merkle tree, outbox indexing, validator/relayer, Helm deployment (design doc). Authored CIP-0101: keccak256 for Plutus — a cross-chain verification primitive for Cardano. Contributed upstream to Hyperlane core. Protocol design informed by deep analysis of UniswapX, Anoma, and SUAVE.

2022 — founding blockchain engineer at BAXUS, a Solana marketplace for tokenized real-world assets — highly cross-functional: frontend (Remix.js, Next.js, Tailwind), onchain (Solana AuctionHouse, NFT marketplace, RWA onboarding pipelines, crypto on-ramp, wallet integration), infra (Kubernetes).

2021 — delivered the Solana integration into Rarible's protocol and product stack, and built distributed metadata and indexing infrastructure (Kotlin, coroutines, Kafka, MongoDB, Redis) powering the multi-chain NFT marketplace — deeper backend and low-level engineering.

2015 – 2021 — 6 years at JetBrains on IntelliJ IDEA indexing systems, static analysis (IntelliJ Plugin Verifier), and internal engineering infrastructure.

Side channel — actively investing in AI tooling, coding agents, and agentic automation. Writing first-principles theory of agent building blocks, learning by building hands-on playgrounds (LangGraph, Apache Iceberg, HashiCorp Vault), and automating workflows end-to-end with agent frameworks.

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  1. JetBrains/intellij-plugin-verifier JetBrains/intellij-plugin-verifier Public

    Compatibility verification tool for IntelliJ Platform plugins

    Kotlin 206 55

  2. solana-foundation/surfpool solana-foundation/surfpool Public

    Surfpool is where developers start their Solana journey.

    Rust 540 136

  3. hyperlane-xyz/hyperlane-monorepo hyperlane-xyz/hyperlane-monorepo Public

    The home for Hyperlane core contracts, sdk packages, and other infrastructure

    TypeScript 56 577

  4. solana-foundation/solana-web3.js solana-foundation/solana-web3.js Public

    Solana JavaScript SDK

    TypeScript 2.7k 1k

  5. anza-xyz/agave anza-xyz/agave Public

    Forked from solana-labs/solana

    Web-Scale Blockchain for fast, secure, scalable, decentralized apps and marketplaces.

    Rust 1.8k 993

  6. LiteSVM/litesvm LiteSVM/litesvm Public

    Rust 589 144