Simon Effenberg
Principal SRE at OPC On Promise Cloud GmbH
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolSimon Effenberg is a Principal SRE based in Berlin with 16 years of hands-on experience building and operating cloud-native backend systems across startups and large enterprises. He combines deep Linux, Python and infrastructure expertise with a proven track record in AWS, Docker and Kubernetes, and has led teams from infrastructure and quality to full software delivery—including guiding a medical device product to CE certification. As an engineering leader he prefers collaborative, cross-functional teams and values knowledge-sharing as the fastest way to stay current with emerging tools. Simon is also an active open-source contributor, improving stability and image-processing features in the widely used thumbor thumbnail service. Comfortable both digging into low-level issues and shaping operational strategy, he excels at turning complex distributed-system problems into reliable, auditable production services.
16 years of coding experience
12 years of employment as a software developer
Bachelor of Science (B.Sc.) media information technology, Bachelor of Science (B.Sc.) media information technology at TFH Berlin
English, German
Github Skills (16)
c1710
debug10
php10
exception-handling10
c1110
thumbor10
python10
redis10
back-end-development10
image-processing10
filter9
performance-optimization9
cluster-computing8
testing8
clustering8
Programming languages (18)
Github contributions (5)
thumbor/thumbor
Jan 2017 - Mar 2018
thumbor is an open-source photo thumbnail service by globo.com
Role in this project:
Back-end Developer
Back-end DeveloperContributions:25 commits, 22 PRs, 138 comments in 1 year 2 months
Contributions summary:Simon primarily focused on improving the thumbor service's core functionality and stability. They addressed exception handling and logging issues, fixed bugs related to image processing, and optimized code for better performance. Furthermore, the user contributed to extending the service by adding new features such as the upscale filter and enhancing existing ones like the watermark filter by adding a resizing feature. They also worked on ensuring the stability of the service by addressing issues related to the jpegtran optimizer and the epoll IOLoop.
imagethumbnailglobothumborphoto
thumbor-community/prometheus
Feb 2017 - Aug 2022
Contributions:13 reviews, 23 commits, 17 PRs in 5 years 6 months
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