Hans Bergren
Crypto Engineer at Royal.io
Spokane, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolHans Bergren is a crypto engineer with 11 years of full-stack experience building production-grade web and blockchain systems, currently focused on developer tooling and protocol work at Royal.io. A Georgia Tech graduate, he has led engineering efforts at Ripple to design SDKs, PayID, and prototype Rust/WebAssembly tooling, and has driven Solidity gas-optimized on-chain art and novel auction mechanics at Yoz Labs. He brings deep JavaScript/TypeScript expertise—demonstrated by improving xrpl.js test and linting infrastructure to maintain 100% coverage—and a track record of shipping backend systems in Node.js, Ruby on Rails, and SQL. Hans blends protocol design thinking with pragmatic, cost-effective implementations that prioritize maintainability and developer ergonomics. Based in Spokane, WA, he pairs strong engineering standards with hands-on contributions to open-source tooling that make complex crypto flows easier to build and audit.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Georgia Institute of Technology
English, Dutch
Github Skills (14)
pretier10
code-coverage10
mochajs10
prettify10
typescript10
javascript10
typescripts10
eslint10
typescript-types10
js9
xrp9
nodejs9
api8
testing8
Programming languages (14)
Github contributions (5)
XRPLF/xrpl.js
Jan 2020 - Feb 2020
A JavaScript/TypeScript API for interacting with the XRP Ledger in Node.js and the browser
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 release, 3 reviews, 16 commits in 1 month
Contributions summary:Hans primarily focused on improving the development environment and code quality for the xrpl.js project. They replaced TSLint with ESLint and Prettier, enhancing code style and maintainability. The user updated testing infrastructure, including migrating to Mocha and using NYC for code coverage, ensuring accurate reporting and increased test coverage. Additionally, they added comments to explain potential errors, and ensured the project maintained 100% code coverage through configuration.
rippleapibrowserjavascriptnodejscryptocurrencies
xpring-eng/eslint-config-base
Mar 2020 - Jul 2020
TypeScript Style Guide
Contributions:22 releases, 163 commits, 72 PRs in 4 months
style-guidetypescripteslint
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