Sean Gilligan
Software Engineer And Architect at Omni Foundation
California, United States
Summary
🤩
Rockstar🎓
Top SchoolSean Gilligan is a software engineer and architect with 15 years of experience specializing in Bitcoin and blockchain systems, currently consulting from California. He designs and implements cross-platform wallet libraries, JVM/Android protocol tooling, and Micronaut-based proxy servers while maintaining notable open-source projects like OmniJ and ConsensusJ. His contributions to the widely used bitcoinj library include concrete improvements to core classes and modernizing code by replacing deprecated utilities, reflecting a practical eye for maintainability. Earlier in his career he built iOS and Angular applications and Spring Boot backends, giving him full-stack fluency that complements his blockchain focus. He blends hands-on development with architecture and DevOps, and has a history of steering project-level technical decisions such as unifying Omni implementations. A UC Santa Cruz graduate with deep protocol expertise, he pairs pragmatic engineering with long-term stewardship of critical open-source infrastructure.
15 years of coding experience
University of California, BerkeleyHigh School Diploma, High School Diploma at Bellarmine College PrepUniversity of California Santa Cruz
Spanish
Stackoverflow
86reputation
17kreached
4answers
0questions
Github Skills (18)
bitcoin10
bitcoins10
object-oriented-programming10
java10
javas10
blockchain9
immutability-helper9
immutability9
unit-testing7
xml6
geb6
cross-browser6
svg6
gradle6
groovy6
Programming languages (25)
Github contributions (5)
bitcoinj/bitcoinj
Jan 2015 - Aug 2022
A library for working with Bitcoin
Role in this project:
Backend Developer
Backend DeveloperContributions:2 releases, 1025 reviews, 420 commits in 7 years 9 months
Contributions summary:Sean's commits focused on adding functionality to the bitcoinj library. The contributions involved implementing the `Cloneable` interface for several core classes, including `VersionedChecksummedBytes` and `Address`, and enhancing the functionality of existing classes such as `Transaction` and `DeterministicKeyChain`. They also improved code quality by replacing deprecated Guava utilities with their JDK counterparts and by adding a method to derive key from an address.
bip143bitcoinjbip141bip32bip173
OmniLayer/omni-devops
Oct 2014 - Feb 2018
Contributions:76 commits, 9 pushes, 4 comments in 3 years 5 months
test-toolsmasterdocker
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