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Hi there 👋

I am Jan, a software developer and computer scientist with a focus on distributed databases and distributed systems.

  • 🔭 I’m currently working on BBoxDB a distributed key-bounding-box-value database. BBoxDB is a NoSQL database for multi-dimensional data implemented from scratch.

  • 🌍 You can find more about my and my projects on my website

  • 📫 How to reach me:

  • Fun fact: My first installed Linux Distribution was a SuSE 6.1 (Kernel 2.2.6) in 1999, and my first computer was a Pentium 1 with 100 MHz and 16 MB RAM running Windows 95.


  1. bboxdb Public

    BBoxDB is a scalable, highly available, and distributed data store for multi-dimensional big data. The software supports operations like multi-dimensional range queries and spatial joins. In additi…

    Java 29 9

  2. This project provides a Java client library for the Bitfinex WebSocket API (v2). Public and private channels (candles, ticks, executed trades, (raw) orderbooks, orders, and wallets) are implemented.

    Java 88 54

  3. BerlinMod Player is a tool that creates a stream of coordinate updates from BerlinMod data. The tool can be used to benchmark geo-spatial stream processing sytems.

    C++ 1

  4. chrootfs Public

    chrootfs is a virtual filesystem for chroot environments. The project implements a lighweight FUSE FS overlay over a exsting filesystem.

    C 2

  5. pic Public

    This project contains some assemby code for 8-bit PIC microcontroller (e.g., a driver for seven-segment leds or a driver for a ultrasonic sensor).

    Assembly 1

  6. This container image provides a highly available and replicated MySQL installation in Kubernetes or Docker Swarm. Consul, ProxySQL, and XtraBackup are used for leader election, load distribution, a…

    Python 7 5

2,846 contributions in the last year

May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Mon Wed Fri

Contribution activity

May 2022

Created a pull request in timescale/timescaledb that received 25 comments

Multi-buffer copy optimization backport

This commit backports the Postgres upstream multi-buffer / bulk insert optimization into the timescale copy operator. If the target chunk allows it…

+2,744 −35 25 comments
Opened 3 other pull requests in 1 repository
26 contributions in private repositories May 1 – May 23

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