Gregory Hill - Lead Software Engineer at bob-collective

Gregory Hill

Lead Software Engineer at bob-collective

London, England, United Kingdom

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Summary

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Gregory Hill is a crypto-native lead software engineer based in London with 11 years of experience and 6+ years focused on smart contracts and cross-chain systems. He combines hands-on backend work in Go and Rust with full-stack contributions to Polkadot/Substrate tooling and UIs, and has maintained critical open-source infrastructure like Hyperledger Burrow. As a platform and SRE engineer he has operated Kubernetes on Google Cloud, integrated Prometheus/ELK monitoring, and implemented consensus and JSON-RPC features used by enterprise blockchain projects. Gregory’s contributions include event-decoding fixes in paritytech/subxt and UI/parachain integrations in polkadot-js/apps, reflecting a practical blend of protocol-level expertise and user-facing improvements. He brings academic rigor from an MSc in Informatics and a background in ethical hacking to bear on secure, production-grade blockchain systems, and is known for surfacing subtle runtime and concurrency fixes that improve long-running distributed services.

10 years of coding experience

3 years of employment as a software developer

MSc, Informatics, Merit, MSc, Informatics, Merit at The University of Edinburgh

Ethical Hacking, Computer Science, First Class, Ethical Hacking, Computer Science, First Class at Abertay University

Stackoverflow

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Github Skills (26)

substrate10

javascript10

typescript10

rpc10

polkadot-js10

go10

ethereum10

typescript-types10

blockchain10

rust10

typescripts10

hyperledger10

polkadot10

react10

cli10

Programming languages (19)

SmartyCSSC++RustCCMakePLpgSQLMakefile

Github contributions (5)

hyperledger-archives/burrow

Sep 2018 - Feb 2021

https://wiki.hyperledger.org/display/burrow

Role in this project:

Backend Developer

Contributions:1 review, 60 commits, 162 PRs in 2 years 5 months

Contributions summary:Gregory Hill primarily worked on enhancing the Hyperledger Burrow codebase. His contributions include adding features to the CLI, such as streaming dumps to STDOUT and setting GRPC timeouts. He addressed bugs related to port string conversion and concurrency, and he upgraded Tendermint. Furthermore, Gregory's commits cover updates to the project's versioning and release notes.

hyperledgerconsensusethereumblockchainevm

paritytech/subxt

Sep 2020 - Apr 2022

Interact with Substrate based nodes in Rust or WebAssembly

Role in this project:

Back-end Developer

Contributions:12 reviews, 20 commits, 24 PRs in 1 year 7 months

Contributions summary:Gregory primarily focused on enhancing the event decoding capabilities of the `subxt` library. They implemented and fixed option decoding logic for events within the Substrate framework, adding a basic sanity test to ensure correctness. Furthermore, the user addressed runtime errors, propagating them to the `decode_raw_bytes` caller, and registered type sizes for u64 and u128. They also worked on subscription handling and RPC client improvements.

substraterpcrustblockchainsubmit

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