Lukas Martinelli
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolLukas Martinelli is a seasoned software leader and founder with 12 years of experience, currently CEO of Reprompt in San Francisco, building systems that extract verified data from unstructured documents and web pages. He combines hands-on backend and database engineering with product leadership, previously leading Search and Data at Mapbox. Lukas is an active open-source contributor with notable work on OpenMapTiles—implementing multiple vector tile layers and optimizing PostGIS/SQL pipelines—and on tooling like pgfutter and hadolint. His background spans data ingestion, schema design, and DevOps automation, reflecting a practical focus on robust, production-ready data workflows. Trained in computer science at HSR Rapperswil, he brings a pragmatic engineering approach to turning messy real-world data into reliable, queryable formats.
12 years of coding experience
Bachelor of Science (B.S.), Computer Science, Bachelor of Science (B.S.), Computer Science at HSR Hochschule für Technik Rapperswil
French, German, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (29)
postgresql10
python10
scripting10
document-generation10
script10
lexical-analysis10
go10
parsing10
postgis10
sql10
database-design10
dockerfile10
sh10
csv10
shell10
Programming languages (21)
Github contributions (5)
openmaptiles/openmaptiles
Oct 2016 - Jan 2017
OpenMapTiles Vector Tile Schema Implementation
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:1 release, 307 commits, 14 PRs in 3 months
Contributions summary:Lukas contributed significantly to the OpenMapTiles project, focusing on the development and maintenance of the vector tile schema implementation. They implemented several new layers including water, buildings, boundaries, roads, ice, urban areas, and place, adding different levels of generalization, data sources, and filtering logic. The user also refactored existing code into table functions, optimized queries, and modified database schemas. Their work involved extensive interaction with PostGIS and SQL for data processing.
openstreetmapopenmaptilestilemaptilevector-tile
lukasmartinelli/pgfutter
Aug 2015 - May 2019
Import CSV and JSON into PostgreSQL the easy way
Role in this project:Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:3 releases, 132 commits, 18 PRs in 3 years 9 months
Contributions summary:Lukas contributed significantly to the `pgfutter` project, which focuses on importing data into PostgreSQL. Their work involved implementing features for importing CSV data, including parsing columns, handling delimiters, and creating database tables. They also refactored existing code, enhanced the error reporting, and added test cases for the project, demonstrating a focus on improving data import functionality.
csvjsonbcsv-importpostgresqljson
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