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Michael Zaikin

PROFILE

Michael Zaikin

Over a three-month period, this developer contributed to core blockchain infrastructure by enhancing protocol correctness and security across multiple repositories. In lambdaclass/cairo-vm, they improved Cairo VM bytecode assembly by ensuring constants segment data was included, reducing runtime failures and simplifying debugging. For NethermindEth/juno, they implemented version-aware state commitment logic in Go, aligning protocol commitments with evolving specifications and strengthening consensus resilience. In starkware-libs/sequencer, they introduced OHTTP envelope encryption using Rust, creating a middleware crate that secures outbound HTTP requests and establishes a foundation for future encrypted communications. Their work demonstrates depth in backend, blockchain, and encryption engineering.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

4Total
Bugs
1
Commits
4
Features
2
Lines of code
2,164
Activity Months3

Work History

April 2026

2 Commits • 1 Features

Apr 1, 2026

April 2026: Delivered foundational OHTTP envelope encryption support in the sequencer repository, establishing secure HTTP communications groundwork and enabling future cross-system OHTTP adoption. A new crate (tower_ohttp) provides a Tower middleware implementing envelope encryption, key management, and robust error handling, with integration into the StarkNet transaction prover to secure outbound requests. This work enhances data-in-motion security, reduces risk of interception, and positions the platform for scalable, compliant communications across services.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026 monthly summary for NethermindEth/juno. Focused on stabilizing protocol-level state commitments as protocol specs evolve, delivering version-aware logic for the state commitment formula to ensure compatibility with newer protocol versions and correct application of Poseidon hashing. This work reduces upgrade risk, improves correctness of state commitments, and aligns with the project’s trajectory toward robust, forward-compatible consensus tooling.

November 2024

1 Commits

Nov 1, 2024

Month: 2024-11 — Focused on improving Cairo VM correctness in the lambdaclass/cairo-vm repository. Delivered a critical bug fix to Cairo VM Bytecode Assembly Correctness that ensures constants segment data is included in the final bytecode via CairoProgram::assemble_ex. This correction reduces the risk of misassembled programs, stabilizes execution, and strengthens downstream tooling and tests. No new user-facing features were released this month, but the reliability improvements have meaningful business value by reducing debugging time and increasing confidence in deployment artifacts.

Activity

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Quality Metrics

Correctness97.6%
Maintainability80.0%
Architecture95.0%
Performance77.6%
AI Usage30.0%

Skills & Technologies

Programming Languages

GoRust

Technical Skills

API developmentBlockchain DevelopmentCairoGo programmingRustSmart Contractsbackend developmentblockchain developmentencryptionmiddleware designmiddleware integrationsmart contract development

Repositories Contributed To

3 repos

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

starkware-libs/sequencer

Apr 2026 Apr 2026
1 Month active

Languages Used

Rust

Technical Skills

API developmentRustbackend developmentencryptionmiddleware designmiddleware integration

lambdaclass/cairo-vm

Nov 2024 Nov 2024
1 Month active

Languages Used

Rust

Technical Skills

Blockchain DevelopmentCairoSmart Contracts

NethermindEth/juno

Mar 2026 Mar 2026
1 Month active

Languages Used

Go

Technical Skills

Go programmingblockchain developmentsmart contract development