7+ years building production systems across blockchain, fintech and enterprise backends.
Backend-heavy stack: TypeScript / NestJS, Java / Spring, Rust on Solana. Based in Poland 🇵🇱
🛩 agent-flight-recorder - a local-only flight recorder for coding agents: one JSONL line per tool call across Claude Code and Codex, zero tokens, metadata-only (file contents are never logged - and a test pins that promise). MIT.
🛡 agent-guardrails - guardrails for unattended coding agents: secrets deny, destructive-git ask, verify-before-done, token metering - fail-open, measured friction (~0.4 asks/day, zero false positives). Apache-2.0.
🩺 agent-hooks-doctor - kills the flashing terminal windows that AI-agent hooks spawn on Windows, and keeps them dead through plugin auto-updates. MIT.
📚 llm-wiki-ops - the operations engine for an agent-maintained Obsidian vault (Karpathy LLM-wiki pattern): live junctions, generated MOC hubs, dead-link lint, attention budget, secrecy tripwire, and agent prompts for semantic lint. Apache-2.0.
🟢 Solana token infrastructure - Token-2022, Meteora CP-AMM, Jupiter Swap, Helius RPC, Squads Multisig V4, GCP KMS signing
🟢 Web3 payment rails - Wagmi / Viem / RainbowKit, stablecoin flows (USDC/USDT), x402 protocol, fiat on/off-ramp, ERC-4337 account abstraction
🟢 Enterprise DLT - Hyperledger Besu / GoQuorum (QBFT), Canton Network (Daml), Firefly middleware (TM, KM, CM), Kaleido platform, Terraform-managed multi-env infra
🟢 Fintech backend - Java / Spring Boot microservices, Solace messaging, Liquibase, Helm, Azure DevOps CI/CD for APAC enterprise client
🟢 AI tooling - multi-agent dev workflows, MCP servers, automation pipelines (TypeScript / Python)
Blockchain: Solana · Rust · Anchor · Solidity · Hyperledger Besu/GoQuorum · Canton / Daml · Firefly · Kaleido · EVM
Web3: Web3.js · Ethers · Wagmi · Viem · SIWE · ERC-4337 · WalletConnect · Hardhat · Foundry
Backend: TypeScript · NestJS · Node · Java · Spring Boot · Python · PHP / Laravel
Data: PostgreSQL · Kysely · RabbitMQ · Redis · IPFS · Liquibase
Infra: AWS · GCP · Kubernetes · Terraform · Docker · ArgoCD · Helm · Azure DevOps
