Marcus Eide
Engineer at Spotify
Stockholm, Sweden
Summary
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RockstarMarcus Eide is a seasoned engineer based in Stockholm with a decade of professional experience building reliable networked and backend systems. He has a long tenure at Spotify since 2016 and prior roles spanning broadcast network operations at SVT and a decade as CTO at Ownit Broadband, giving him deep operational and product-facing perspective. Marcus contributes to prominent open-source work on Backstage, focusing on authentication backends and OAuth integrations for providers like GitHub and GitLab, including rigorous testing and origin/state management improvements. He blends systems-level understanding from his network specialist and CTO past with pragmatic backend development skills, making him effective at hardening authentication flows and cookies in production services. Colleagues benefit from his mix of infrastructure experience and hands-on coding, especially around secure developer portal integrations. An engineer comfortable across both legacy network environments and modern cloud-native developer tooling, he often surfaces subtle security and state-handling issues before they reach production.
10 years of coding experience
10 years of employment as a software developer
Github Skills (12)
typescript10
javascript10
authentication10
user-authentication10
typescripts10
backstage10
nodejs10
cookie10
oauth10
typescript-types10
testing9
expressjs9
Programming languages (2)
Github contributions (5)
backstage/backstage
Feb 2020 - Dec 2022
Backstage is an open framework for building developer portals
Role in this project:
Back-end Developer
Back-end DeveloperContributions:94 reviews, 284 commits, 91 PRs in 2 years 10 months
Contributions summary:Marcus primarily contributed to the authentication backend of the Backstage project, specifically focusing on integrating OAuth providers like GitHub and GitLab. Their work involved implementing cookie configurations, setting up authentication flows, and managing user authentication within the application. The contributions also extended to testing the OAuthAdapter and related helper functions to ensure proper functionality and configurations. This included updates to the codebase to handle origin checks, and other state management for more robust authentication.
portalsinfrastructureopen-platformdxbackstage
marcuseide/iosxr-monitoring
Apr 2016 - May 2016
Contributions:6 pushes, 1 branch in 4 days
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