Blockchain Engineer | L2 Core Contributor

Expert in blockchain infrastructure, node stability, and high-performance Go development. Focused on enhancing Layer 2 protocols and ensuring data integrity.

• go-ethereum: Refactored core codebase by removing deprecated vulnerability logic (-815 lines).
• Tezsign Security: Engineered a hardened 24MB minimal Linux kernel for RK3566-based hardware signing devices.
• Arbitrum Nitro: Improved state validation logic to prevent database corruption.

• Offchain Labs / Nitro
  • PR #4163: Fixed a critical database corruption vulnerability during node reorgs.
  • Performance benchmarking and verification of the Nitro stack on the Go 1.25 toolchain.
• Layr-Labs / EigenDA
  • PR #2431: Improved client resilience and connectivity logic.

• Languages: Go (Expert), SQL, Shell
• L2/L1 Tech: Arbitrum Nitro, ZKsync, Linea, EigenDA, Cosmos SDK
• Specialization: Node Infrastructure, DB Integrity, RPC Optimization

• Telegram: @[ТВОЙ_НИК]
• Email: rdin35051@gmail.com L2 Core Contributor | Blockchain Security & Architecture

I focus on the architectural integrity, prover stability, and security of Ethereum Layer 2 ecosystems. I recently completed a "contribution marathon" across Arbitrum, Linea, and ZKsync, solving critical bottlenecks in node logic and proof generation.

• Issue: Prevented database corruption during node reorgs (#4098).
• Solution: Implemented pre-initialization state validation in cmd/nitro/init.go (PR #4163).
• Impact: Eliminated risks of "bricking" nodes during rollbacks, protecting operator databases from inconsistency.

• Issue: Fixed decoupling of line counts from trace height in arithmetic modules (Issue #1955).
• Solution: Refactored computeLineCount() logic in Java-based tracers to support dynamic complexity.
• Impact: Ensured stable proof generation and eliminated "silent errors" in trace files.

• Contribution: Refactored magic constants into named parameters to improve system auditability (PR #1230).
• Action: Optimized GitHub Actions for the core proof generation pipeline to speed up CI/CD cycles.
• Result: Enhanced code maintainability and transparency for the prover infrastructure.

• Languages: Go (Nitro/Geth Core), Java (ZkTracer), Rust (Provers).
• Tools: Ethereum rawdb, Pebble DB, ZK-proof systems, GitHub Actions.

• GitHub: rdin777
• Email: rdin35051@gmail.com