A free study app I built and have run since spring 2025. Pick a
place, start the timer, and work alongside whoever else is in
there. On a normal day that is ten people or more.
A peer-reviewed paper in Perception (2024) on how
finely we feel touch on the back, for wearables that talk
through vibration.
Read it
2
Chapter I · 2013 – 2019
Where it started
A bachelor's in ICT & Technology at Fontys University of
Applied Sciences, on the innovation routes ICT & Lifestyle and
ICT & Smart Mobile. A lot of building things, and then finding
out whether they worked for the people they were for.
2013 Started ICT & Technology
2017 Internship at Actemium
2018 A semester in Canada
2019 Graduation internship at ALTEN
2019 Graduated
Picked up here
Scrum
Prototyping
C, C++, C# and Java
SQL
Unity and Android
OpenCV
Arduino and Processing
PLC and SCADA (Ladder, STL)
Linux
Trello
3
A semester in Canada
General studies at Medicine Hat College in Alberta in the fall
semester of 2018, as the minor abroad of my bachelor's. I took
psychology, sociology, organisational behaviour, management theory
and English literature.
Two internships
Tap a note to open it.
Actemium Feb – Jul 2017
A feasibility study into automated guided vehicles (AGVs) for
Edulab, evaluating hardware and software ecosystems to define
what an implementation would need. It included a two-week
engineering bootcamp at Kollmorgen in Sweden.
ALTEN Netherlands Feb – Jun 2019
Graduation internship. I built a proof of concept for burnout
prevention, pairing a heart-rate sensor with a desktop
application that gave stress advice in real time. Literature
research and surveys set the functional requirements for the
stress-detection algorithm.
Picked up here
Feasibility studies
Requirements from research
4
Chapter II · 2020 – 2023
The human side
A pre-master and then the MSc in Human-Technology Interaction at
Eindhoven University of Technology, which applies psychology,
research methods and design to how people use technology. It comes
with the Dutch engineering title, Ir. (engineer).
2020 Pre-master
2021 MSc Human-Technology Interaction
2022 Minor in human-computer interaction at Utrecht
University, covering computer vision, language generation,
mobile interaction and serious games
2023 Thesis on student dashboards
2024 Master's project published
Picked up here
UX research
Figma
Python and Stata
Notion
NAO robots
OpenCV and TensorFlow, at Utrecht
5
The thesis · 2023
Reflection and resource-related prompts on student-facing
dashboards
Students in two TU/e courses got a learning dashboard on their
own Canvas data, built in Power BI. It came in three versions,
with no prompts, with prompts to reflect, or with prompts
pointing to course material. 39 students took part in a
three-wave survey study, and 31 completed all three waves.
The prompts made no measurable difference. Autonomy did.
Students who felt in control of their learning were more
engaged.
MSc Human-Technology Interaction, 2023. Supervised by Uwe
Matzat and Chris Snijders.
Full thesis, PDF
Picked up here
Survey design
Statistics
Power BI
Dashboard design
6
In print · Perception, 2024
Vibrotactile spatial acuity on the back
My master's project. How far apart two vibrations on the back
need to be before they feel like two. People tell them apart
more finely horizontally across the back than vertically, which
matters for wearables that communicate to you through touch.
Plaisier, M. A., Vleeshouwers, C. S. J. M., Boonstra, N.,
Shi, Y., van der Velden, S. J. J., Vos, W. K., & Kappers,
A. M. L. (2024). Vibrotactile spatial acuity on the back.
Perception.
Read it
Picked up here
Experimental research
Scientific writing
7
Chapter III · 2019 – 2020
TravPRO Mobile
Between Fontys and TU/e, a year as software engineer at TravPRO
Mobile, on an e-learning and virtual events platform built with
React for the web and React Native for mobile.
I built chat, learning modules and virtual expo halls, and
improved them in small rounds from user feedback and support
tickets. I did this as a freelancer under IT-Cahelle.
Still writing React today, since Focusverse runs on it.
Picked up here
React and React Native
HTML and Sass
Requirements into code
Learning from support tickets
Monday.com
8
Chapter IV · 2022 – 2026
Venderion
I joined Venderion in Eindhoven in October 2022 as a part-time
commercial trainee, cold calling and finding leads. In September
2023 I went full time in a different job, as technical consultant.
The job was to sit down with engineers at tech companies, work out
what is genuinely new in what they are building, and write it up
for the Dutch R&D tax credit, the WBSO, in a way that holds up
with the RVO.
50+
software and hardware clients with a WBSO grant secured
Picked up here
Stakeholder sessions
Technical writing
Scoping and risk
Tech into a business case
Cold calling and leads, as a trainee
9
Chapter V · April 2026 – now
Sanoma Learning
Product owner at Sanoma Learning in 's-Hertogenbosch, on Bingel
DC. Bingel is Malmberg's platform for Dutch primary education,
used by around 100,000 teachers and 800,000 children.
Everything in the earlier chapters meets here, from education and
research on how people learn to deciding what gets built next.
In spring 2025 I started building the study app I wanted myself, a
room worth sitting in with a timer and a task list that work. It
is free, runs in the browser, and has around five hundred
locations across ten universes.
I do all of it myself, from the roadmap and the design in Figma to
the React and Tailwind code on Supabase, Netlify and Cloudinary,
down to the SEO and promotion.
current Focusverse interface
11
Built, and what comes next
Requests come in through a form in the app and go on a
public roadmap, with a direction but no fixed dates.
Built A timer, a tasklist, a week planner, a notepad, a
soundboard, 10 universes, shared sessions, and a community room.
Later More locations, more ways to study together, and
more gamification
Maybe AI study helpers, only if they stay calm and
genuinely useful
I teach weekly at the student sports centre in Eindhoven and
fill in across other disciplines, after teacher training at
Studio Skye. Most of the job is turning a move that is hard to
see into steps anyone can follow, safely.
SPV Blue 2019 – 2024
A year on the board for external relations, from 2019 to 2020.
Five years chairing the promo committee, which ran the
website, social media and merchandise.
Two years on the advisory council, from 2020 to 2022.
Languages
Dutch, my first language. English fluently. Some French and
German.
13
Chapter VIII
The compass
What I use, and where I picked it up.
Product
Roadmaps
Backlog and prioritisation
Stakeholder sessions
Scrum, PSPO I
Discovery interviews
Competitor analysis
User stories
Impact against effort
Technical writing
Miro, Trello, Monday.com, Notion
from Fontys, Focusverse, Venderion and Sanoma
Research
Survey design
Usability testing
Statistical analysis
A/B testing
Literature review
Scientific writing
Stata
from TU/e and ALTEN
14
Design
Figma
Prototyping
Interaction design
Wireframes
InDesign
from Fontys, TU/e and Focusverse
Build and data
React
Tailwind CSS
JavaScript
Power BI
React Native
HTML and CSS
Supabase
Netlify
Python
Firebase
Git
SEO
Prompt engineering
Canvas LMS data
from TravPRO, TU/e and Focusverse
Engineering
C and C++
C#
Java
SQL
Linux
Unity
Android
OpenCV
TensorFlow
Arduino
PLC programming
from Fontys and Utrecht
15
About the author
Cahelle Vleeshouwers
Photo
the author
Product owner at Sanoma Learning, based in Eindhoven. Thanks for
reading this far.