Felix Kastner
Senior Software Development Engineer at Twitch
California, United States
Summary
👤
Senior🎓
Top SchoolFelix Kastner is a Senior Software Development Engineer with 13 years of full-stack experience and a track record of designing and optimizing large-scale backend systems, currently building at Twitch. Comfortable across front-end, backend, database and cloud ops, he excels in vendor integrations, data shaping, performance profiling and query-driven analytics. A long history of self-employment taught him to own end-to-end delivery and tackle problems outside his comfort zone with minimal supervision. He prefers big, challenging projects and pragmatic optimizations—bringing Redis caching, message queues and Azure-native patterns to bear where they matter most. Known for clean, testable code and receptiveness to critique, he combines engineering rigor with hands-on operational experience from running servers and auditing security in production.
13 years of coding experience
5 years of employment as a software developer
August-Bebel Schule
German, English
Github Skills (111)
dashboard10
webjobs10
monitoring10
linux10
dotnet10
sdk10
azure10
mysql10
cloud-infrastructure10
aws-sdk10
csharp10
steam-api10
development-kit10
xamarin10
aws10
Programming languages (8)
Github contributions (5)
Bio2hazard/talis.xivplugin.twintania
Dec 2013 - Feb 2014
A Twintania Boss Mod for FFXIV
Contributions:27 commits in 1 month
modffxivboss
Bio2hazard/SteamCompletionist
Mar 2013 - Apr 2018
View website at
Contributions:28 commits, 3 pushes, 11 comments in 5 years 2 months
reactsteam-apiasfsteamgift
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