Anders Lemke-holstein
Founder at Oase
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolAnders Lemke-holstein is a founder and technologist with 14 years of experience building platforms and privacy-forward product experiences from Copenhagen. He leads Oase and Promise Authentication, tackling the societal impacts of algorithmic platforms by designing tech that prioritizes presence, meaningful relationships and community well-being. Formerly Platform Architect & Lead Engineer at Zetland, he combines hands-on backend work in Ruby/Rails with mobile and QA contributions across notable open-source projects like rails_event_store and Active Merchant. His contributions span event-sourcing improvements, payment gateway testing, and stabilizing iOS audio playback—demonstrating a pragmatic blend of architecture, testing rigor, and mobile engineering. Anders holds an engineering degree from DTU and brings founder-level product instincts to technical problems, often focusing on how systems shape human attention. He serves on nonprofit boards and in innovation programs, reflecting a commitment to civic-minded technology.
14 years of coding experience
14 years of employment as a software developer
Technical University of Denmark
English, Danish
Stackoverflow
21reputation
0reached
4answers
0questions
Github Skills (24)
unit-testing10
ruby-rails10
ios10
react-native10
cqrs10
payment-gateway10
rails10
event-sourcing10
ruby10
activemerchant10
swift10
test-automation10
testing9
avaudiosession9
audio9
Programming languages (15)
Github contributions (5)
doublesymmetry/react-native-track-player
Sep 2017 - Jun 2019
A fully fledged audio module created for music apps. Provides audio playback, external media controls, background mode and more!
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:8 commits, 12 PRs, 52 comments in 1 year 9 months
Contributions summary:Anders primarily focused on enhancing the iOS portion of the React Native audio module. Their contributions include fixing issues with local file playback, integrating new functionality for setting playback speed and pitch, and refining the handling of audio interruptions. Furthermore, the user addressed an issue where the queue was exhausted, adding functionality to signal queue completion. These changes significantly enhanced the stability and feature set of the iOS implementation.
music-libraryaudio-playerplayerplayback-audiowindows
RailsEventStore/rails_event_store
Nov 2015 - Jan 2019
A Ruby implementation of an Event Store based on Active Record
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits, 1 PR, 11 comments in 3 years 3 months
Contributions summary:Anders primarily focused on enhancing the Ruby Event Store, a Ruby implementation of an Event Store based on Active Record. Their contributions included refining the core functionality of the event repository by integrating Rails methods for event retrieval and improving code clarity. They also addressed aspects of event handling, specifically ensuring the correct events were returned. Additionally, the user added new functionality to the `to` parameter, renamed `tail` to `end`, and included specific lint tests to the Ruby Event Store.
dddevent-sourcingrailsaggregate-rootcqrs-es
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