
Amirhossein Khajepour developed advanced cryptographic and backend features across the a16z/jolt and NilFoundation/placeholder repositories, focusing on modularity and performance. He engineered a modular preprocessing architecture in Rust for Jolt, separating shared logic between prover and verifier to improve maintainability and onboarding. In the same project, he batch-optimized the sumcheck protocol, consolidating advice-polynomial claims and introducing parallel computation for scalable proofs. For NilFoundation/placeholder, he delivered dynamic Merkle Patricia Trie support and RLP utilities in C++, enhancing ZK-EVM circuit efficiency. His work demonstrated depth in software architecture, algorithm design, and performance optimization, addressing complex integration and scalability challenges.
Concise monthly summary for 2026-01 highlighting key features, major fixes, impact, and skills demonstrated for business value and technical achievement.
Concise monthly summary for 2026-01 highlighting key features, major fixes, impact, and skills demonstrated for business value and technical achievement.
December 2025: Delivered a Modular Preprocessing Architecture for Prover and Verifier in the a16z/jolt repository, enabling separation of shared preprocessing logic from prover and verifier to improve modularity, maintainability, and future extensibility. Created a shared preprocessing module (JoltSharedPreprocessing) to encapsulate and reuse preprocessing across components. Addressed host integration challenges (JoltCpuProver) and resolved a global initialization bug related to trusted advice Dory. Updated the sample_project template to align with the new architecture. This work reduces cross-component coupling, accelerates onboarding, and provides a solid foundation for faster feature delivery and more reliable builds.
December 2025: Delivered a Modular Preprocessing Architecture for Prover and Verifier in the a16z/jolt repository, enabling separation of shared preprocessing logic from prover and verifier to improve modularity, maintainability, and future extensibility. Created a shared preprocessing module (JoltSharedPreprocessing) to encapsulate and reuse preprocessing across components. Addressed host integration challenges (JoltCpuProver) and resolved a global initialization bug related to trusted advice Dory. Updated the sample_project template to align with the new architecture. This work reduces cross-component coupling, accelerates onboarding, and provides a solid foundation for faster feature delivery and more reliable builds.
July 2025 monthly summary for NilFoundation/placeholder focusing on key accomplishments, major bug fixes, overall impact, and technical achievements. The work this month centered on delivering robust MPT support for ZK-EVM circuits through targeted enhancements and utilities, with traceable commits.
July 2025 monthly summary for NilFoundation/placeholder focusing on key accomplishments, major bug fixes, overall impact, and technical achievements. The work this month centered on delivering robust MPT support for ZK-EVM circuits through targeted enhancements and utilities, with traceable commits.

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