Alexis Jeandet
Research Software Engineer
IT Team – LPP/CNRS
I work at the interface between space instrumentation and plasma physics data analysis. After contributing to the digital electronics and flight software of the Low Frequency Receiver (LFR) on board Solar Orbiter, I now develop the open source SciQLop ecosystem : a suite of tools that simplifies access to and analysis of multi-mission in-situ data for the space plasma physics community. All my work is released under free software licenses.
Software & projects
- SciQLop — graphical environment for exploring high-resolution in-situ satellite data. Built for fluid navigation through years of multi-mission data : virtual products defined in Python on the fly, shared event catalogs, embedded Jupyter console and a plugin system. Lead maintainer of the project.
- Speasy — Python library providing unified access to plasma physics data (AMDA, CDAWeb, SSCWeb, CSA), with transparent local caching. A public cache service hosted at LPP speeds up requests for the whole community.
- CDFpp — C++/Python library for reading NASA CDF files ; vectorized decoding, among the fastest CDF readers available.
- SciQLopPlots / NeoQCP — SciQLop's graphics engine : interactive Qt/C++ scientific visualization with GPU rendering, able to display billions of points with no perceptible lag.
- PRISM (R&D) — declarative, reactive GUI framework in modern C++, leveraging C++26 static reflection ; an exploration of a lightweight Qt alternative for scientific applications.
Space instrumentation
- Solar Orbiter / RPW-LFR — embedded flight software, VHDL design (SoC on RTAX4000D FPGA) and associated test tools (SoCExplorer).
- Mixed-signal electronics (analog / digital) for scientific instrumentation.
Responsibilities
- Administrator of the LPP software forge : Hephaistos
- Administration of the laboratory's Kubernetes cluster and the services it hosts (data servers, continuous integration), as well as a dedicated JupyterHub server with a compute GPU
- Coordinator of the LoOPS network (software development in French academia)
Contact
École Polytechnique campus
Site : Palaiseau — Office : 05 10 04 F
Phone : +33 (0)1 69 33 58 59
Email
– alexis.jeandet@lpp.polytechnique.fr
– alexis.jeandet@member.fsf.org
Matrix / IRC (Libera.chat) : jeandet
Online
– Personal GitHub
– SciQLop organization
– LPP GitHub
– OpenHub
Recent presentations
2026
Heliophysics in Europe Workshop (ESTEC) (upcoming) : All the data. All the science. — SciQLop poster
DASH Meeting (upcoming) : Agentic LLM workflows inside SciQLop · Ground-based and space-based radio spectra in SciQLop · The SciQLop ecosystem: a layered open-source stack (poster)
MOP – Magnetospheres of the Outer Planets : SciQLop: an Interactive Open-Source Environment for Exploring In-Situ Magnetospheric Data (poster)
26th BepiColombo SWT Meeting : SciQLop: the space physicist's IDE — from archive to science, without leaving your environment
ATST colloquium (Biarritz) : The SciQLop Ecosystem: Open-Source Tools for Interactive Multi-Mission In-Situ Plasma Data Exploration and Analysis
2025
EPSC–DPS Joint Meeting (Helsinki) : SciQLop & Speasy: Open-Source Tools for Unified Planetary and Heliospheric Data Analysis
EGU General Assembly : SciQLop: A Tool Suite for Multi-Mission High-Resolution In-Situ Data Analysis
2024
EGU General Assembly : SciQLop: a tool suite to facilitate multi-mission data browsing and analysis
PNST conference : SciQLop — multi-mission in-situ data analysis (poster)
2023
EGU General Assembly : SciQLop: a tool suite to facilitate multi-mission data browsing and analysis
Heliophysics in Europe (ESA) : Simplified Access to Plasma Physics Data: Speasy's Integration, Features and Impact
Plas@Par scientific days : SciQLop: a tool suite to facilitate multi-mission data browsing and analysis
Assises Devlog : presentation of the LoOPS network
2022
EGU General Assembly : SciQLop: an open source project for in situ data analysis
Cinquième Rencontre Pico : Jupyter-.*, a tour of Jupyter usage, hosting and sharing options
2016 – 2018
Signal Processing & Instrumentation Day (2018) : Low Frequency Receiver (LFR)
LoOPS coffee talks : TeamCity (2018), Meson Build (2017)
ESA SEFUW – SpacE FPGA Users Workshop (2016) : Prototyping a SOC on RTAX4000D for Solar Orbiter's Low Frequency Receiver