Lars Fronius
Freelance Software Engineer (Go) And Cloud DevOps Serverless Consultant (AWS) at Toptal
Berlin, Germany
Summary
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SeniorLars Fronius is a freelance software engineer and AWS-focused Cloud/DevOps and Serverless consultant with 15 years of experience building and running production-grade systems, increasingly centered on Go backends. He started on Linux and has progressed from managing hardware to designing cloud-native, serverless architectures and CI/CD platforms, including significant work on Codeship's compute and networking layers. Lars is an active open-source contributor—he added AVIF support to the popular bimg image-processing library—demonstrating hands-on C interop and performance-minded engineering. Based in Berlin, he combines deep operational experience with pragmatic product instincts from roles as platform engineer and technical product manager. Known for tracing and unwinding bottlenecks, he helps teams migrate to serverless or optimize their cloud stacks while keeping delivery velocity high.
15 years of coding experience
8 years of employment as a software developer
English, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
go10
avif10
image-processing10
libvips10
heif9
jpeg6
png6
c115
webp5
c175
Programming languages (19)
Github contributions (5)
h2non/bimg
Oct 2020 - Oct 2020
Go package for fast high-level image processing powered by libvips C library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits, 1 PR, 10 comments in 16 days
Contributions summary:Lars primarily contributed to the image processing library by adding support for the AVIF image format. This involved integrating AVIF encoding and decoding functionality using the libvips C library. The user modified several files to include AVIF support, added corresponding tests, and exposed a new speed setting for AVIF encoding. Furthermore, the user updated the resizer to ensure that only the save function is used when the library does not contain an installed decoder for a certain format.
crop-imagegolanggo-packageimagecrop
LarsFronius/commercetools-cdk-constructs
Jan 2022 - Sep 2024
Contributions:11 PRs, 328 pushes, 3 branches in 2 years 8 months
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