- Built private key and HD wallet import and export primitives. By using our one‐shot encryption protocol (written in Go, Javascript, and Rust based on the HPKE standard (RFC9180), enhancing it with pre‐flight recipient authentication for client <‐> enclave communication verification) between the client and Turnkey’s enclave applications, import and export are entirely self‐custodial.- Built integration with Alchemy’s AccountKit which uses Turnkey as its default signer.- Stack: Rust, Golang, Typescript, Postgres, Kubernetes

Built and fundraised for stealth startup offering a consumer EVM wallet with fiat on‐ramp, human‐readable transactions, social recovery, and a dApp developer SDK. Utilized MPC key management and cross‐device biometric authentication (WebAuthn/Passkeys).

- Tech lead for non-custodial MPC wallet (secure multiparty computation using DKLs18) launched publicly in May 2022 to millions of users in 100+ countries. worked with team of 6 engineers and cross-functionally with security, infrastructure, frontend, cryptography, platform teams.- Architected transaction state management for MPC wallets. Provided optimal UX for retail users onboarding to DEXs and NFT marketplaces: allow users to serially queue transactions, automatically cancel failed transactions, automatically reset transaction nonces, and accelerate or cancel transactions without paying additional gas fees.- Built ETH2 staking ($XB staked AUC): Implemented complex workflows to seamlessly deposit, approve, and stake ETH from retail wallets into validators across multiple node providers.- Built and scaled ETH and Polygon indexers to support the MPC wallet. Indexed transaction, ERC-20, ERC-721, ERC-1155 metadata.- Stack: Golang, Solidity, Postgres, Mongo, AWS, Kafka

- Employee #4. Designed a data model and policy engine for information sharing across enterprises -- that led to company's acquisition and is now part of Splunk's data orchestration product offering.- Led implementation of Spark structured streaming pipelines to parse heterogeneous structured data, apply custom whitetlisting and permissions, normalize scores, and extract metadata in order to provide realtime recommendations to security analysts.- Architected search engine to power partial, exact, and recommended search as well as custom filtering of 100M+ documents with custom logic for different threat indicators and threat models.- Bitcoin Wallet Tracing x Ransomware Campaign research (presented at Blackhat USA Arsenal 2018, DEFCON 26 Recon Village, Shmoocon 2018)- Stack: Scala, Javascript, React, Spark, Elasticsearch, Postgres, Neo4j, AWS