Hello, welcome on my website, I am
an opensource freelancer, who likes to share knowledge.
I am Félix, a french IT engineer interested in programming, video games, mountains, sports and a lot of creative activities. I think that knowledge is something meant to be shared and I highly appreciate open source & free software philosophies and their equivalent in other fields.
As a freelancer, I have two goals. First, develop skuldenka, a game and general purpose software development tool enabling as much as possible user-side customization of softwares. Second, help people build their skills and knowledge throught helping teachers, students and more.
My skills are mainly related to IT or creativity. I enjoy to work both in team and solo, and I am more efficient if I have some personal space and freedom, especially when it comes to coding. I love humor and have a wide imagination. I know to be rational and serious when situation requires it. I am concerned with societal problems, especially ecology and inequalities, and try to do what I can to help solve them.
Conception, development and documentation of skuldenka, as well as communication around the project, with a dev vlog and more. Writing courses, lecturing and supporting students, either in group or individualy.
Apprenticeship at Atos during my engineering school studies. Worked part of the time at Atos and studied the other part, switching each 6 weeks. First worked two years on a deep learning framework using FPGAs, and finally last 6 months, for my end of studies project, worked on Yorc, an open source meta orchestrator, on which my mission was to conceive and discuss a distributed architecture for the next major version.
Last "course" semester of my engineering degree spent at NTNU Trondheim, with only
practice-based courses:
TDT4290 - Customer Driven Project, during which I worked on Alpaca Sampler, a simplified
interface for Ableton Live music software, with a team of 7 students.
TPD4142 - Design Thinking, with various non-IT practice subjects.
TDAT3023 - 3D Computer Graphics with project, where I was offered an open subject and chose to
work on Noodle Engine, a personal project I had at this time.
Three years diploma corresponding to a M2 level at ENSIMAG engineering school. Courses include modelisations, algorithmics, mathematics, software architecture, operating systems and more. I took this cursus as an apprentice at Atos compagny, at which I worked while studying.
Three month internship at 3SR laboratory at Grenoble to conclude my DUT studies. My mission was to port an Open Source 3D sphere image generation tool, Kalisphera, written in Python, to C to increase its speed. In the run, I created a tiny C++ 3D image manipulation library to allow scientists not familiar with C/C++ to benefit from C++'s speed and linked it with Python using Cython.
A two year diploma, corresponding to L2 level (french : Diplôme Universitaire de Technologie - DUT) at IUT2 Grenoble. Courses are covering a wide scope of IT knowledge as all-purposes programming languages, web technologies, networking, Object Oriented software architecture, and computer architecture, as well as more generalistic fields, as mathematics, economy, project management and communication.
| main | experience(h) | practice |
|---|---|---|
| C++ | 9000+ | daily |
| software architecture | 3500+ | daily |
| oral communication | 2500+ | daily |
| creativity | 22000+ | daily |
| programming | experience(h) | practice |
| C | 1400+ | weekly |
| HTML | 550+ | weekly |
| JS | 550+ | weekly |
| CSS | 550+ | weekly |
| OpenGL | 250+ | monthly |
| OpenCL | 750 | |
| Python | 300 | monthly |
| development | experience(h) | practice |
| software quality | 3100+ | daily |
| user interface design | 2050+ | weekly |
| user experience design | 2050+ | weekly |
| computer graphics | 2000+ | monthly |
| networking technologies | 500+ | |
| modeling | experience(h) | practice |
| algorithmics | 4000+ | daily |
| mathematics | 1000+ | weekly |
| geometry | 2000+ | daily |
| physics simulation | 250 | |
| grammar and languages | 750+ | weekly |
| communication, art & teaching | experience(h) | practice |
| Lecturing and student support | 80+ | monthly |
| technical writing | 1000+ | monthly |
| tutorial and course writing | 2000+ | weekly |
| drawing | 400+ | daily |
| video editing | 1000+ | weekly |
| infography | 300+ | weekly |
| project management & team | experience(h) | practice |
| teamwork | 6000+ | weekly |
| agile methodologies | 2500 | |
| team coordination | 1000 | |
| languages | level | practice |
| French | native | daily |
| English | advanced | daily |
| Russian | beginner | |
| other | experience(h) | practice |
| climbing | 3000+ | daily |
| video games | 10000+ | daily |
| cooking | 2000+ | daily |
| woodworking | 350+ | monthly |
| sewing | 50+ | monthly |
An introduction course to software development designed to address general problems scientists may come accross during their research activities. It covers a wide variety of basics aspects of software development and programming, including object programming, testing, code readability and build automation. This course's writing has been supported by Grenoble's 3SR Lab, through ordering of a 16h lecture.
https://courses.felix-bertoni.fr/0423.htmlOne week Freelance contract with Nolio to improve runtime performances of their small, yet computing-intensive Power Record Python code. Power record is the maximum power average achieved by an athlete over a certain continuous period of time during training. Algorithm needed to take in account potential sensors faults, as for example an unstable sampling rate. Performance improvement was done first technology-wise using cppbind11 library, leading to increase execution speed over 200 times. Then, algorithmic rework induced an additional (well, multiplicative actually) 200-1200 times speed increases, for a total speed increase factor of 40000-300000.
A game-oriented general purpose programming tool meant to offer high modularity to the user without burrying developer under a load of work. Still in an early stage, it separates architecture from instructions sequences, allowing user to easily swap, add or remove softwares components between any set of programs made with it.
https://gitlab.com/feloxyde/skuldenkaKalisphera C is the port from Python of Kalisphera. It was done during my internship at 3SR lab at Grenoble. Kalisphera is a script generating 3D images of spheres as if they would be produced from a RX tomograh, in order to perform image correlations on pictures of granular solids taken using an actual RX tomograph. It was later included in SPAM, a larger tool for material analytics.
SPAM repositoryYorc is a meta-orchestrator developed by Atos. It's purpose is to provide an unified interface for orchestration of heterogeneous architecture, as for example a mix of cloud and high performance cluster. I participated to it during my end of study project in engineering school.
https://github.com/ystia/yorcA simplified interface for AbletonLive, a music production software. Designed for Rockheim museum during my NTNU exchange semester with a team of 6 other students in a project oriented course. Alpaca Sampler was later used in an exposition meant to introduce visitors to digital music creation process. My main mission was to design a simple UI using Python and Qt. The interface interacts with Ableton through internet protocols.
https://gitlab.com/feloxyde/alpaca_samplerA simple game engine using a predictive approach. Was carried as both a personal project and a course project in NTNU 3D graphics course. The engine focuses on fast paced games with limited physics needs. Taking away rotational degrees of freedom allows to have simpler movement equations, and thus enables predictive approach. Flow of simulation becomes much lighter and more concise, recomputations occuring only when an external event, as an input, occurs. Project is currently paused but elements of it will be later integrated into Skuldenka.
https://gitlab.com/feloxyde/noodle_engineA wooden shelf made only using wooden joinery (except for plateau that are assembled with glue). Structure is assembled and locked up using wedged mortise and tenon joints. Each joint is made of two tenons crossing each other on the same plane in a specificly shaped mortise.
A really simple table made of wood, with no tightening between parts, as they are simply put one on the other with halved joints made in order to allow to join three parts together at once. Exceeding wooden parts of the feets were left in place in order to prevent the glass panel to slide away.
I can provide various range of teaching services, from courses to student support, either in french or in english. Courses and talks materials are by default in english and in open access at GitLab.
Talks are presentations meant to be fairly short, ranging from 10 minutes to few hours, to introduce a field or a subject to students, or to raise awareness about something. They are good for vulgarization.
Small courses are courses in the span of few sessions, meant to provide basic understanding of a subject and give needed skills to students in order for them to be autonomous in this subject. They are especially interesting as a complement of the main cursus. They feature both lectures and exercizing.
Full courses are courses in the span of several sessions, meant to provide full understanding of a subject and give a wide and complete skillset to the students in this domain. They can be either done in-cursus or as a complement. They feature both lectures and exercizing. Full courses are open to project-based pedagogy, giving students a project subject, either individualy or in teams. Students have more freedom in project based pedagogy, and lecturing part of the course is directed by students's needs through the project.
Teaching support is help provided to teaching side, as for example supervising students during practical work, or replacing a teacher for a lecture.
Student support is support provided directly to students. It would usually be supporting students having difficulties with a subject.
I try to charge between 15 and 60 euros per effective hour of work.
Worktime calculation includes all work that has to be specificly done for the service instance :
Adapting material for specific needs,
preparing presentations, reviewing students' work, ... Is excluded from worktime the creation of
courses and talks materials, as they are
meant to be in open access and can be reused for other courses.
The more service volume is ordered, the lower the per-hour price.
Finally, transportation and presentation tools (if not provided) costs can be included fully or
partially if they represent a significant amount regarding
the price of the order.
| type | volume | specific work | full price | per-hour |
|---|---|---|---|---|
| full course | 14w/80h | 400h | 10000€ | 25€ |
| small course | 3w/15h | 75h | 2250€ | 30€ |
| talk | 2h | 7h | 480€ | 60€ |
| practical work supervision | 28h | 30h | 600€ | 20€ |
| Student support | 4h | 4h | 60€ | 15€ |
Services may take time to setup, since I need to make it fit with contextual elements : cursus, level of students, volume, ... If the course isn't yet created or ready, I have to create it and have it validated by peers. You can expect following delays for each service:
| type | if created | work in progress/not yet existing |
|---|---|---|
| full course | 1 month | 5 months |
| small course | 1 week | 2 months |
| talk | 1 week | 1 month |
| teacher support | 1 week | - |
| student support | 1 day | - |
Delays are only indicative and can be lowered in case of emergency, especially for teacher and student support.