Todd Gruben
Distinguished Engineer at TGruben, LLC
Fort Worth, Texas, United States
Summary
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RockstarTodd Gruben is a Distinguished Engineer and founder with 13+ years focused on designing databases and building high-performance data pipelines from his base in Fort Worth, Texas. He leads architecture and delivery at Circuit while running his own consultancy, TGruben, LLC, blending hands-on systems engineering with strategic product thinking. His career traces back to early roles in software development and architecture, including founding startups and senior engineering positions where he shaped secure, scalable back-end systems. An active open-source contributor, Todd has made performance-critical contributions to the widely used RoaringBitmap Go library—optimizing bitset container operations like Xor and AndNot for projects such as InfluxDB and DataDog. He pairs algorithmic depth and memory-conscious engineering with practical production experience across data science and enterprise development. Colleagues rely on him for pragmatic trade-offs that squeeze maximum performance from real-world systems.
13 years of coding experience
22 years of employment as a software developer
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (9)
algorithm10
data-structures10
databases10
algorithms10
go10
indexing10
data-structure10
bitset10
database10
Programming languages (12)
Github contributions (5)
RoaringBitmap/roaring
Jul 2014 - Aug 2014
Roaring bitmaps in Go (golang), used by InfluxDB, Bleve, DataDog
Role in this project:
Back-end Developer
Back-end DeveloperContributions:26 commits in 28 days
Contributions summary:Todd primarily focused on developing and refining the core data structures and algorithms within the "roaring" bitmap library. Their work included implementing and optimizing container operations, specifically for array and bitmap containers. Key contributions involved adding features such as the `Xor` operation and improving the performance of existing methods like `AndNot`, which required significant code modifications. Furthermore, the user actively worked on refactoring existing code for enhanced performance and optimized memory usage.
golangcreditsoftware-designelasticroaring-bitmaps
tgruben/pilosa
May 2017 - Apr 2023
Pilosa is an open source, distributed bitmap index that dramatically accelerates queries across multiple, massive data sets.
Contributions:9 PRs, 241 pushes, 117 branches in 6 years
pilosadata-setsbitmapindexbig-data
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