Hlöðver Sigurðsson
Site Reliability Engineer at Blockfrost
Attica, Greece
Summary
🤩
Rockstar🎓
Top SchoolHlöðver Sigurðsson is a Site Reliability Engineer with 11 years of experience building and operating resilient infrastructure across blockchain, web, and media platforms. He has driven production-grade build and deployment systems for Arweave—including NixOS/systemd integration and storage-layer optimizations—and contributed full-stack fixes to arweave-js that improved chunked uploads and crypto verification. A pragmatic DevOps/Full-Stack practitioner, he has held senior roles at PDS and Arweave and now focuses on SRE at Blockfrost from Greece. Trained in music composition and media art, he brings a creative, systems-oriented perspective to engineering problems and a preference for considerate, non-solicitous collaboration.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Arts - BA Music Composition/Media Art, Bachelor of Arts - BA Music Composition/Media Art at Iceland University of the Arts
Stackoverflow
101reputation
3kreached
9answers
2questions
Github Skills (32)
javascript10
opensoundcontrol10
nix10
clojure-cli10
nixos10
typescript10
git-repository10
repos10
clojure10
supercollider10
build-automation10
typescript-types10
blockchain10
systemd10
typescripts10
Programming languages (27)
Github contributions (5)
ArweaveTeam/arweave-js
Jun 2021 - Nov 2022
Browser and Nodejs client for general interaction with the arweave protocol and gateways
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 reviews, 47 commits, 26 PRs in 1 year 5 months
Contributions summary:Hlöðver primarily contributed to the Arweave-js library by implementing and fixing features related to data upload, including resuming chunked uploads. They addressed bugs in the transaction upload process and refactored upload functionality. The user also worked on build configuration and added tests, specifically improving the test suite and addressing issues within the test environment. They were also involved in fixing subtle crypto verification.
interactionbrowserblockstackjavascriptnodejs
overtone/overtone
Jul 2017 - Sep 2022
Collaborative Programmable Music
Role in this project:Back-end Developer
Back-end DeveloperContributions:4 releases, 4 reviews, 85 commits in 5 years 3 months
Contributions summary:Hlöðver primarily worked on improving the SuperCollider server integration within the Overtone project. Their commits focused on fixing versioning issues, modifying the server connection code, and resolving issues with external server port numbers. They also refactored code, renamed symbols, and addressed bugs related to the SuperCollider API and server boot processes. The work involved changes across multiple core files including configuration and server connection files.
musiccollaborativeprogrammable
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