Marc Schmidt
Freelance Software Engineer at Marc J. Schmidt
Hamburg, Germany
Summary
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RockstarMarc Schmidt is a freelance software engineer and founder with 11+ years building enterprise-grade deep learning tooling and high-performance web infrastructure from Hamburg. He blends hands-on backend expertise—especially in PHP, TypeScript, SQL adapters and ORM internals—with front-end contributions like container queries, reflecting a full-stack aptitude. As founder of Deepkit and predecessor AETROS he turned an MVP with thousands of users into a production-focused framework for ML engineering and experiment tooling. His open-source footprint includes meaningful contributions to well-known projects (php-pm, Propel2) where he improved process management, migration tooling and database integrations. Colleagues know him for pragmatic refactors, adding production features such as hot-code reload and robust migration options, and for thoughtfully bridging developer ergonomics with scalable system design.
11 years of coding experience
15 years of employment as a software developer
English, German
Stackoverflow
8,381reputation
1.6mreached
71answers
3questions
css
top-5%
html
top-1%
javascript
top-1%
media-queries
top-5%
jquery
top-1%
angular
top-5%
Github Skills (57)
database-migrations10
parserator10
appbundle10
javascript10
application-server10
object-mapping10
postgresql10
sqlite10
jquery10
parser10
database-connection10
sql-parser10
css10
responsive-design10
typescript10
Programming languages (11)
Github contributions (5)
deepkit/deepkit-framework
Nov 2018 - Jan 2023
A new full-featured and high-performance TypeScript framework
Role in this project:
Back-end Developer
Back-end DeveloperContributions:26 releases, 28 reviews, 2228 commits in 4 years 2 months
Contributions summary:Marc contributed to the back-end functionality of the Deepkit framework. Their commits involved refactoring SQL database connections, implementing features in PostgreSQL and SQLite adapters, and creating various test cases. The user also worked on improving serialization, and made a series of fixes to enhance the framework's handling of types, including changes related to the use of different data structures and the support for new features.
full-featuredframeworkdependency-injectionvalidatornodejs
marcj/TypeRunner
May 2022 - Nov 2022
High-performance TypeScript compiler
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 58 commits, 3 PRs in 5 months
Contributions summary:Marc primarily focused on the internal structure and compilation process of the TypeScript compiler. Their commits modified the `src/node_test.h` file, suggesting work on the compiler's internal representation of code nodes. The user introduced the use of smart pointers and made further changes to the parser component, suggesting an active role in improving the compiler's architecture and functionality.
compilationjavascriptcompilerperformancetranspiler
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