Marc Greenstock
Software Engineer at Vercel
Berlin, Germany
Summary
🤩
RockstarMarc Greenstock is a seasoned software engineer and infrastructure leader with 12 years of experience building cloud-native systems and teams from Berlin. Currently at Vercel after serving as Director of Engineering, Infrastructure, he is AWS Certified at the Professional and Security specialty levels and has repeatedly led migrations to infrastructure-as-code, CI/CD, and mono-repos. He has founded and scaled startups, architected HIPAA/GDPR-compliant clinical decision support and data pipelines using CDK, Glue and Athena, and shipped full-stack products from Ruby on Rails and GraphQL backends to React frontends and mobile SDKs. An active contributor to the Ruby on Rails ecosystem, he’s fixed core CMS fixture and file-handling issues in the ComfortableMexicanSofa project, reflecting a pragmatic focus on reliability and testability. Practical, security-minded, and hands-on, Marc combines engineering leadership with deep operational experience in AWS and developer workflows.
12 years of coding experience
23 years of employment as a software developer
Stackoverflow
11,518reputation
582kreached
87answers
17questions
graphql
top-5%
redirect
top-5%
oauth
top-5%
ssl
top-5%
amazon-s3
top-5%
react-router
top-5%
Github Skills (27)
ruby-rails10
cms10
rails10
ruby10
android10
testing9
amazon-cloudfront9
javascript9
ssl9
ios9
redux9
yaml9
amazon-s39
oauth9
react9
Programming languages (7)
Github contributions (5)
comfy/comfortable-mexican-sofa
Mar 2014 - May 2014
ComfortableMexicanSofa is a powerful Ruby on Rails 5.2+ CMS (Content Management System) Engine
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits in 2 months
Contributions summary:Marc primarily focused on improving the comfortable-mexican-sofa CMS engine, making changes to file handling and fixture imports. Their work involved updating the file fixture importer priority, exporting references to pages and blocks, and importing block references. They also addressed a failing file export test, likely related to the fixture implementation, demonstrating expertise in the project's core functionality.
cmsruby-on-railsmanagement-systemruby-on-rails-5rails
mbaasy/swagger-loader
Aug 2016 - Dec 2017
Contributions:10 commits, 7 pushes, 1 branch in 1 year 3 months
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