Gísli Björnsson
Senior Core Systems Developer at Landsbankinn
Iceland
Summary
👤
Senior🎓
Top SchoolGísli Björnsson is a Senior Core Systems Developer with 13 years of experience building identity, API and core banking systems at Landsbankinn in Iceland. He designed and implemented a gold-standard API platform (APIGee + PingFederate) and later migrated authentication to a custom IdentityServer4-based IDP, including bespoke SAML2p and WS-Trust servers for ASP.NET Core. His work spans the full lifecycle from API frameworks and identity model libraries to automated deployment pipelines and infrastructure provisioning using Octopus Deploy and Chef. Comfortable across .NET Framework and .NET Core, he blends deep security and identity expertise with practical deployment automation. Notably, he has moved large-scale banking identity infrastructure from commercial products to a maintainable, custom stack—reducing vendor reliance while retaining enterprise-grade protocols. Based in Iceland with a BS in Computer Science, he pairs long-term institutional knowledge with hands-on engineering discipline.
13 years of coding experience
7 years of employment as a software developer
BS, Computer Science, BS, Computer Science at Háskóli ÍslandsIðnskólinn í Reykjavík
English, Icelandic
Github Skills (118)
http-api10
identity10
authentication10
asp-net-core10
security10
asp-net10
rest-api10
simplify10
async10
linux10
dotnet10
rest10
azure-ad-b2c10
identitymodel10
openid-connect10
Programming languages (9)
Github contributions (5)
SOLIDSoftworks/Solid.AspNetCore.Extensions.Wcf
Mar 2018 - Mar 2020
Solid.AspNetCore.Extensions.Wcf is a library for hosting WCF services in AspNetCore. This library is built for .Net Framework 4.6.1 and above.
Contributions:40 commits, 5 PRs, 19 pushes in 2 years
hostingdotnetnetframeworkwcf-servicenet-framework
gislikonrad/Modularity
Nov 2012 - Feb 2014
Contributions:22 commits in 1 year 2 months
dotneteventsaspunitasp-net
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