Sven Marnach
Staff Software Engineer at Mozilla
Preetz, Schleswig-Holstein, Germany
Summary
🤩
Rockstar🎓
Top SchoolSven Marnach is a Staff Software Engineer with 16 years of experience blending software development, mathematics and DevOps to build reliable, scalable systems. He has driven infrastructure and back-end work at Mozilla and Google and led fullstack and hosting platform efforts for OpenCraft, bringing projects from design through deployment. A longtime contributor to Open edX and the Rust crates.io registry, he combines production-grade engineering with thoughtful code hygiene and database interaction improvements. His background in numerical mathematics informs a methodical approach to problem solving and system design, and he gravitates toward technical leadership roles rather than trading or finance. Based in Preetz, Germany, he frequently operates at the intersection of SRE, platform engineering and application back-ends, with a knack for improving operational tooling and deployment workflows.
16 years of coding experience
15 years of employment as a software developer
Diploma Mathematics, Diploma Mathematics at Heidelberg University
Stackoverflow
587,151reputation
66.3mreached
2,586answers
12questions
virtualenv
top-5%
floating-point
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oop
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regex
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permutation
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substring
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Github Skills (173)
datetime10
number-formatting10
python10
list-comprehension10
multidimensional-arrays10
sub-directory10
string-interpolation10
databases10
bash10
loops10
if-statement10
subprocess10
syntaxerror10
whitespace10
ansible-galaxy10
Programming languages (20)
Github contributions (5)
openedx-unsupported/configuration
Sep 2015 - Oct 2017
A collection of edx configuration scripts and utilities that edx.org uses to deploy openedx.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:21 commits, 26 PRs, 8 pushes in 2 years 1 month
Contributions summary:Sven primarily focused on configuring and modifying infrastructure-as-code for the Open edX platform. Their contributions involved enabling HTTP basic authentication for individual services, modifying configuration files related to Nginx, and providing S3 IAM credentials for log syncing. Additionally, the user made changes to migration scripts to ensure Ansible properly detected database migration errors.
pythonconfiguration-managementansibleedxconfiguration-scripts
openedx/edx-platform
May 2015 - Nov 2017
The Open edX LMS & Studio, powering education sites around the world!
Role in this project:Back-end Developer
Back-end DeveloperContributions:53 commits, 58 PRs, 22 pushes in 2 years 7 months
Contributions summary:Sven contributed primarily to the back-end functionality of the edX platform. Their commits involved implementing feature flags for the discussion tab, adding new XBlock types like Poll, and enhancing the masquerading feature. Additionally, the user made changes to the enrollment API, optimizing enrollment list retrieval and clarifying the documentation. Furthermore, they addressed issues related to forum voting events, and made code cleanup changes.
edxlmssitesbackend-serviceopen-edx
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