Sondre Bjellås
Founder And CEO at Nostria
Bar, Montenegro
Summary
👤
SeniorSondre Bjellås is a founder and CEO with 13+ years in software and infrastructure, currently leading Nostria to help Nostr scale as a viable, decentralized alternative to centralized social media. He blends hands-on engineering—spanning .NET/C#, Node.js, microservices, Azure and frontend frameworks—with architecture and project leadership informed by long-standing Microsoft community involvement and certification. An experienced technical speaker and community organizer, he has a track record of contributing to open-source blockchain tooling, including meaningful backend work on the Stratis Bitcoin Full Node to improve transaction handling, wallet recovery and robust shutdown behavior. He’s driven by a passion for product development, voluntarism and open ecosystems, applying those values to build resilient, user-focused distributed systems.
13 years of coding experience
English, Norwegian
Stackoverflow
808reputation
29kreached
12answers
9questions
Github Skills (17)
wallet10
bitcoin10
bitcoins10
n10
blockchain10
dotnet-core10
csharp10
freenode10
apidoc8
api8
testing8
wpf6
azure-service-fabric6
databinding6
angular-forms6
Programming languages (20)
Github contributions (5)
stratisproject/StratisBitcoinFullNode
Aug 2018 - May 2019
Bitcoin full node in C#
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 11 PRs, 88 comments in 8 months
Contributions summary:Sondre implemented features related to Bitcoin full node functionality within the C# codebase. They focused on adding detailed transaction information to block data and incorporating a passphrase for wallet creation and recovery, ensuring backward compatibility. Additionally, the user addressed a node shutdown issue by modifying the shutdown process to properly signal the node's `RunAsync` method to trigger the node disposal. Furthermore, they made modifications to the minting process to remove exceptions.
full-nodeblockchaincsharpcryptocurrencybitcoin
block-core/chaininfo
Jan 2020 - Dec 2022
Repo for chain information that are compatible with the Blockcore tooling (such as Explorer and Indexer).
Contributions:32 reviews, 578 commits, 24 PRs in 2 years 11 months
blockchainchainblockchain-networkblockcoreexplorer
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