Daniel Bachler
Head Of Engineering at Our World in Data
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolDaniel Bachler is a pragmatic engineering leader and Head of Engineering at Our World in Data with 11 years of professional software experience and a background that uniquely blends film directing with deep technical craft. He moves fluidly between full-stack development and backend systems, with hands-on contributions to notable open-source projects like the owid-grapher data-visualization platform and graphene-django, and has improved type safety, chart projections, and complex GraphQL/Django query handling. Previously a CTO for EU research projects, he led remote teams building data warehouses and scientific data pipelines using F#, Elm, Python, Scala and cloud-native stacks, demonstrating both architectural rigor and domain-specific data stewardship. Daniel values clear vision and narrative as much as robust engineering, applying an aesthetic sensibility to user-facing data tools while ensuring sound technical foundations. His interests span biochemistry, data visualization and robotics, reflecting a curiosity for systems from molecules to interactive interfaces.
11 years of coding experience
19 years of employment as a software developer
HTL SpengergasseFilmregie, Filmregie at filmArche Berlin
English, German
Stackoverflow
139reputation
18kreached
4answers
0questions
Github Skills (31)
unit-testing10
parser10
pytest10
python10
django10
code-standards10
typescript10
wpgraphql10
elm10
parsing10
parse10
wordpress-graphql10
graphene10
typescript-types10
graphql10
Programming languages (20)
Github contributions (5)
owid/owid-grapher
May 2021 - Jan 2023
A platform for creating interactive data visualizations
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:656 reviews, 810 commits, 691 PRs in 1 year 8 months
Contributions summary:Daniel's commits primarily focused on adding return type annotations, which improved type safety in the codebase. They made changes to the core components, specifically improving line charts with projections. Additionally, they refactored code, corrected typos, and addressed styling.
data-visualizationdata-visualizationsreacttypescript
graphql-python/graphene-django
Oct 2017 - Mar 2018
Build powerful, efficient, and flexible GraphQL APIs with seamless Django integration.
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 1 PR, 10 comments in 5 months
Contributions summary:Daniel primarily focused on resolving issues and improving the functionality of the GraphQL API built with Django and Graphene. Their contributions included implementing new test cases, fixing existing unit tests that involved complex queries, and updating method signatures for compatibility. They also made modifications to handle distinct querysets and merge them correctly, reflecting a deep understanding of the underlying Django ORM and GraphQL integration. Additionally, the user made minor adjustments like removing print statements.
djangographql-apigraphenepythongraphql
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.