File · Works & Side-Projects
Projects.
A selective timeline — recent first. More on GitHub.
Present
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2026
A Home Assistant integration for Siemens S7 PLCs, built on top of python-snap7.
Audio & DSP
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2025
Real-time audio feature extraction for live visualisation — written in Rust for low-latency use on stage.
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2025
A neural-network audio plugin inspired by the classic Dutch electro track "Poing".
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2025
An Ultimate Charcoal Packing Maximizer 3000 — because BBQ efficiency matters.
Spotify
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2022 — now
Edge & service-mesh infrastructure at Spotify
On the Fabric team: service mesh, service discovery, and service-to-service auth. On the ATC team: edge-perimeter systems — attack prevention, scraping detection, load balancing. And the occasional 3 a.m. incident call.
News & drones
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2021
Recommendation engine at DPG Media
Built the recommendation engine for a then-upcoming multi-brand news app and website. Also acted as product owner for technical debt.
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2021
Namibia
Building and flying first-person-view drones — soldering the boards, tuning the flight controller, and learning to fly them without crashing too often. Footage from the dunes of Langstrand, Namibia.
Databases & clients
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2020
An embedded version of MonetDB with a SQLite-compatible interface, plus fast NumPy / Pandas interop.
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2020
Overhauled the Linux client and Python API for eduVPN, the federated VPN for researchers and students.
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2020
The sixth iteration of the KERN radio-astronomy software suite.
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2020
python-snap7 0.11
A new release of python-snap7 — a pure-Python Siemens S7 PLC library that now has ~800 stars.
Grid sim & fragrance
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2019
Electricity-grid simulation for Alliander
Building a simulation of the Dutch electricity grid with realistic usage patterns, as a testbed for reinforcement-learning agents optimising long-term investment strategies. We never quite got to the deep-learning part — but the simulation was lovely.
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2019
Algorithmic perfume design for Scentronix
Collaborative filtering for recommending perfume recipes from a personality profile.
Signals & pipelines
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2018
Containers for alien-signal hunting
Containerisation and packaging of software used in the search for signals from extraterrestrial intelligence — Breakthrough Listen at Berkeley SETI.
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2018
Deconvolving radio-telescope data using deep learning.
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2018
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2018
APERTIF software & cluster tooling
Software packaging and cluster tooling for APERTIF.
PKI & workflows
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2017
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2017
EOSC LOFAR pilot
Porting radio-astronomy data-reduction pipelines to Common Workflow Language for the European Open Science Cloud.
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2017
Cape Town consultancy
Computer-vision and computational-creativity consulting for @Over. Python API for live trading on the Johannesburg exchange for AG Capital. SQLAlchemy dialect for MonetDB.
Early work
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2016
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2015
A Python API around Docker Machine.
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2013
A Python API for the snap7 Siemens PLC communication library. Still actively maintained a decade later.
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2012
Client-side JavaScript encryption for the browser-based file-sharing platform.
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2012
CT skull visualisation with VTK
Playing with VTK and DICOM files on the CT scan of my own skull — rendering, slicing, and poking around inside my own head.
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2011
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2010
Computer vision in C++ translating real-time hand poses into MIDI. Master's-thesis project — the demo video is a Snoop Dogg / Madonna mashup driven entirely by hand gestures into Ableton Live.
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2008
perfSONAR NetFlow plugin
A NetFlow plugin for perfSONAR.