Tess Rinearson
Group PM, Platforms And Security
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolTess Rinearson is a seasoned engineering and product leader with 14 years of experience building and securing developer platforms across crypto and Web2 companies, currently leading Platforms and Security at OP Labs from Berlin. She has held senior engineering and product roles at Chain, Interstellar, Twitter, and Medium, and serves on blockchain-focused boards including Mina Foundation and Interchain, reflecting deep domain expertise in decentralized systems. Tess combines hands-on technical experience—contributing to Tendermint's Go consensus tests and QA—with product leadership, shipping resilient infrastructure and improving protocol reliability. Her background spans systems engineering to VP-level management, making her adept at translating complex cryptographic and distributed-systems requirements into practical, auditable products. Notably, she balances open-source maintenance work with strategic security and platform roadmaps, a blend that helps teams scale securely and sustainably.
14 years of coding experience
11 years of employment as a software developer
Lakeside SchoolComputer Science, Computer Science at Carnegie Mellon UniversityComputer Science, Computer Science at University of Pennsylvania
Github Skills (9)
consensus10
go10
blockchain10
testing10
cryptography9
distributed-systems9
bft-protocols8
debug7
continuous-integration5
Programming languages (13)
Github contributions (5)
tendermint/tendermint
Sep 2019 - Sep 2021
⟁ Tendermint Core (BFT Consensus) in Go
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:188 reviews, 151 commits, 272 PRs in 2 years
Contributions summary:Tess primarily focused on enhancing the testing suite for the Tendermint core, specifically adding tests related to block commits and validating edge cases. They also made minor code improvements, like removing unused code and fixing minor errors. Furthermore, the user made updates related to the dependency bumping and versions, contributing to the maintenance and stability of the project. These changes demonstrate the user's contributions to the reliability and quality assurance of the blockchain project.
golangcryptographybftconsensusethereum
tessr/CIS-120-Final-Project
Dec 2011 - Dec 2011
Contributions:25 commits in 5 days
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