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Tomas Fabrizio Orsi

PROFILE

Tomas Fabrizio Orsi

Worked across Rust-based blockchain and backend projects, delivering features and targeted fixes to improve reliability, usability, and standards compliance. On lambdaclass/ethereum_rust, addressed Ethereum Virtual Machine correctness by refactoring program counter logic to match the Yellow Paper, enhancing execution flow and traceability. For 0xPolygonMiden/miden-client, improved CLI usability with TOML-based inputs and upgraded dependencies for stability and security. Expanded the public API in 0xPolygonMiden/miden-base to support external integrations, and implemented safe data directory initialization in 0xMiden/miden-node. Leveraged skills in Rust, system programming, API design, and dependency management to deliver maintainable, well-documented solutions across multiple repositories.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

6Total
Bugs
1
Commits
6
Features
4
Lines of code
578
Activity Months3

Work History

October 2025

2 Commits • 2 Features

Oct 1, 2025

October 2025 performance summary focusing on delivering external integration capabilities and robust data-store safety. The month delivered two primary enhancements across repositories, driving business value through extended API surfaces and safer data operations.

April 2025

3 Commits • 2 Features

Apr 1, 2025

April 2025 monthly summary for 0xPolygonMiden/miden-client: Focused on improving CLI usability and upgrading dependencies to boost stability and security. Delivered TOML-based VM advice inputs, clarified confirmation prompts, and updated RPC client compatibility with library changes. No explicit major bugs reported in the provided data. These changes enhance user experience, developer productivity, and long-term maintainability.

December 2024

1 Commits

Dec 1, 2024

Month: 2024-12. Focused on LEVM correctness in the Ethereum Rust implementation (lambdaclass/ethereum_rust). Delivered a critical bug fix to the Program Counter (PC) increment and jump handling to align with the Ethereum Yellow Paper, improving execution correctness, state tracking, and standards adherence. The change is tightly scoped, traceable to a single commit, and reduces edge-case discrepancies in opcode sequencing.

Activity

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Quality Metrics

Correctness91.6%
Maintainability86.6%
Architecture86.6%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

MarkdownRustTOML

Technical Skills

API DesignBackend DevelopmentCLI DevelopmentCargoDependency ManagementDocumentationEthereum Virtual MachineFile System OperationsJSONLow-level programmingRustSerialization/DeserializationSmart ContractsSystem ProgrammingTOML

Repositories Contributed To

4 repos

Overview of all repositories you've contributed to across your timeline

0xPolygonMiden/miden-client

Apr 2025 Apr 2025
1 Month active

Languages Used

MarkdownRustTOML

Technical Skills

CLI DevelopmentCargoDependency ManagementDocumentationJSONRust

lambdaclass/ethereum_rust

Dec 2024 Dec 2024
1 Month active

Languages Used

Rust

Technical Skills

Ethereum Virtual MachineLow-level programmingRustSmart Contracts

0xPolygonMiden/miden-base

Oct 2025 Oct 2025
1 Month active

Languages Used

Rust

Technical Skills

API DesignRustSystem Programming

0xMiden/miden-node

Oct 2025 Oct 2025
1 Month active

Languages Used

Rust

Technical Skills

Backend DevelopmentFile System Operations